Message-ID: <58855asstr$1240146602@assm.asstr.org>
From: Stephen Richardson <free2c0mmunicate@yahoo.com>
Subject: {ASSM} INTERSTELLAR RELATIONS - by Free2c0mmunicate - 1/4 (ScFi tg anal humor story MF TF MT FF rom cons reluc nc 1st exhib tg voy mc snuff rape viol humil msolo oral group enem tv toys dream college job strap-on swing)
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Date: Sun, 19 Apr 2009 09:10:02 -0400
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Subject: INTERSTELLAR

   RELATIONS -" by Free2c0mmunicate - ScFi tg anal humor story MF TF MT FF
rom cons reluc nc 1st exhib tg voy mc snuff rape viol humil msolo oral
group enem tv toys dream college job strap-on swing

   ------

   New story for your consideration.  Please let me know if I need to
format differently.  Thanks.

   Free2c0mmunicate

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   This post has been reformatted by ASSTR's
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   <1st attachment, "interstellar Relations-final-all-sections-marked-part1of4u.doc" begin>


   INTERSTELLAR RELATIONS

   By Free2c0mmunicate <a href="mailto:Free2c0mmunicate@yahoo.com">Free2c0mmunicate@yahoo.com</a>

Distribution: Commercial use prohibited.  Copyright retained by
Author.  May be distributed by anyone as long as no text is changed, the
details of authorship are retained, and the process of distribution makes
no money for the distributor.

   Typical internet story disclaimer: In the 2000's, unlike the 2600's,
unprotected anal sex is very dangerous, so don't do it.  After exchanging
blood test results, use protection and you may experience the most intimate
and intense sex you've ever known.  To ease your way into doing anal, test
a little with your finger sometime in the shower...and if you like it, try
a smooth object...and then you know what to do after that.

   There's something for everyone in the way of sex genres a 400 page story
of sexual awakening needs that but just to let you know, it does NOT
contain incest, minors, or bestiality (at least, not unless sentient adult
aliens are beasts!) Please forgive any small parts that squick you since
there are bound to be some.

   The story is about a male Earthling who goes to another planet for a
technology exchange and meets a new and unusual girlfriend.  The background
sci-fi story is shamelessly intended to increase the plausibility of the
sex scenes.  The threading was inspired somewhat by 1001 Nights flashbacks
and voyeur scenes are a very useful device.  It's book length and I tried
to maintain a coherent story that combines nearly-legitimate sci-fi with
stroke material.  If you want to give me a literature award I'll accept it,
but what I really want is for you to read this story and get yourself off
to it.  You'll note that our protagonist's name is never mentioned that's
to make it easier to imagine it's you.  There are also no curse words it
was a challenge and when I was done, that somehow made it feel even
dirtier. If I made you hard or wet, jack off or jill off, I'd love to hear
about it, preferably in detail.  I want for all sentient beings in the
universe to come and come again.  So suspend your disbelief, get some
tissues, and get ready to blast off!

   Free2c0mmunicate@yahoo.com

   Part 1 of 4

   In the year 2653, Earth made contact with a new star system, known to
Earthlings as Glapi.  This was not the first civilization we had
encountered.  Over the years the interactions between systems had remained
remarkably friendly, with trade of technology being the norm rather than
interstellar wars.  It helped that there was an apparent convergence of
evolution on many planets; some say the similarity was the result of a
seeding by an elder race.  Most of the sentient alien species we knew of
were humanoid, some more so than others.  Communications weren't a problem
because we were pretty similar and both planets had long since developed
implantable translation devices.

   The Glapis had offered to trade their advanced gravity-control
technology for our faster spaceship engines.  I was sent to Glapi as part
of the team teaching the new technology.  Since it was a long assignment,
we were allowed to have a normal life to the extent possible.  Glapis
outwardly look as much like earthlings as other earthlings from distant
countries do, and they're about the same size, so I didn't stand out much.
There's a little less sexual dimorphism than on Earth because while the
female bodies ultimately bear the young just like on earth, Glapi genetic
material must be passed back and forth between the two sexes for
fertilization to occur.  The amount of cooperation required for mating
makes it almost impossible to rape or engage in any other kind of
aggressive male behavior that might leave more offspring, and so the women,
while feminine, tend to be taller than Earth women and closer to the men in
size.

   Visually, the Glapis are good-looking by earth standards.  They are
focused on diet and exercise and combine advanced medical knowledge with a
universal health care plan.  I was more observant of the women, like any
man would be.  I wondered how their back and forth fertilization system
worked and if it would feel like exciting kinky sex for an Earthling like
me.  But it seemed like it was a risky evolutionary proposition--I knew it
had something to do with immunity to diseases, which are a constant problem
when planetary populations with different virus-like microorganisms make
contact.  The Glapis had been space-faring much longer than us.  Some of
the team heard that they had even purposely mutated themselves to gain this
protection.  It allowed them to mix not just the nuclei of their sex cells
but also mix the cytoplasmic DNA.  For the non-medical out there, this
means that they shuffle their overall genetic material more quickly than we
do, and it confuses would-be infections.  We didn't know how it worked, and
that made the speculation all the more exciting.

   The women have small but well-formed breasts which they make the most
of. They almost all have tight round buttocks of the kind that are only
found on young and highly desirable Earth women.  Being an ass man, I
delighted in "girl watching" and would sometimes purposely stay out a while
wandering the streets and just watching them walking around in their
typical outfits, which consisted of low-cut cleavage-baring tops and tight
pants with a flap of material in a contrasting color hanging down over the
front.  Sometimes I would see a male following a female at a distance of a
few meters and staring mesmerized at her enticing wiggling derriere.  The
woman in these cases didn't seem to mind, in fact, she appeared to
purposely be teasing the man and encouraging him.  And it was only just one
man, never a group.  At the time I thought it was just some kind of alien
cultural difference.

   We had Earth women and while I should claim I was too focused on my work
to have a relationship, the truth is that I kept striking out and they
weren't allowing me to have sex with them.  I was so horny that I would
memorize the Glapi women's asses and then go home and furiously stroke
myself until I shot huge wasted loads.

   I met Shan-dra while teaching her to operate the transdrive in the
sample engines we had brought along.  She was technical and pleasant and
had one of the most perfect upside-down heart-shaped asses I had ever seen.
We became friendly and I felt a little guilty that I would go home and
masturbate over her.  She must have known.  Women always know when you
think they're hot.  One day when she was bending over the engine to adjust
something and I was studying her ass, she turned her head to ask me
something without standing back up and I was caught.  "It's ok", she said,
"I've seen you looking for a long time and I'm flattered.  You look good
when you bend over too.  We should consider doing something about that. 
Would you like to get to know each other better over dinner later?" That
would have been a little forward on Earth but of course I accepted.

   She must have thought it was ok to invite me to her flat because we had
been working together for a while.  When I arrived, she was wearing what
looked like white spandex with a kind of red handkerchief front and a red
thong in back.  After she greeted me at the door, she walked in front of me
to a seating area similar to a living room and I couldn't get my eyes off
her butt.  We talked about power transmission for a while, then we had some
dinner it was a kind of blue noodle made from sea creatures and a starchy
plant mashed together, but it's quite good if you like sushi.  We flirted
and gave non-verbal cues throughout dinner I guess they're a bit universal.

   After dinner, we returned to the seating area and she sat next to me. 
What she said next surprised me with how forward it was, "You're here in
hopes of mating for pleasure, aren't you?"

   I croaked out a "yes".

   "Good.  We on Glapi also enjoy mating for its own sake.  You can accept
that we will not be reproducing?"

   I agreed.  That made sense and was just like most dating sex on Earth.

   She said, "I need to explain how we reproduce and then if you still want
to try it that would be great, otherwise we can still masturbate each
other".  We have males and females similar to your men and women, but for
purposes of an improved immune system, we have dual copulation.  Males are
pretty much like you.  Females are different and have two kinds of gametes
produced by two sets of glands in the abdomen.  The first female cells are
transferred to the male using a copulatory organ inserted into the anus of
the male.  These cells form a plaque on the inside of the intestine and
from there send out tendrils to the seminal vesicles.  The cells interact
there and modify the male sperm to include some non-nuclear DNA from the
male and some variable surface antigens from the female to make her egg
cells integrate the extra DNA from the modified sperm.  These are then fed
back into the female's body through an opening similar to an Earth vagina
called the return slot when the male orgasms inside her and the vesicle
contents are transferred back into the woman.  The whole process is
intensely pleasurable as it must provide enough incentive for the couple to
repeatedly join to stimulate cell growth in the male with hormone transfer.
If the mating continues, the male body will contain modified sperm that
include the female DNA in about 2 of your Earth weeks.  Until then the male
will ejaculate empty semen and this feels good.  When small dark dots
appear in the semen, it is ready to return.  Giving it back is
mind-blowing, the male often loses consciousness from ecstasy and the
female will be temporarily immobilized from an inability to feel anything
but pleasure.  After the return has been completed, the male body absorbs
the temporary cells from the female and the cycle can begin again shortly
after that.  I'm sure you're a little overwhelmed taking this all in."

   I ignored the biology lesson.  "You have an organ you want to insert
into my anus?"

   "Yes.  You will love how intense it is.  There is a kind of
pleasure-pain involved at the start for virgins and inactive males but you
will quickly learn to relax easily when you need to.  The in and out motion
stimulates us the same way that your penis is stimulated in the return
cycle.  Hormones that issue from a Glapi woman's organ trigger a
simultaneous orgasm, and to be honest they make a man crave further
couplings more than normal until his body finishes joining the cells. 
There's no need for contraception at this stage because I need to implant
my cells to continue the process and you need the juices I will secrete.  I
know what you may be thinking yes we have homosexuals but receiving my
organ and enjoying this coupling will not mean you are gay, it will just
mean that you have nerve endings and enjoy sexual variety."

   I couldn't believe I wasn't just running away, but I was intrigued if
not quite aroused.  "What happens with the cells?"

   "As I reach my peak, I will have an overwhelming urge to push deeply
into you and my organ will deposit a thick sticky mass which will attach
itself to a 1 cm spot on your intestinal wall.  This doesn't hurt because
there isn't much feeling in there anyway but the pleasure will make you
ignore it completely.  It won't block your normal rectal functions.  Small
and painless probes will then grow from the disk to your vesicles to modify
your sperm.  Further deposits from my body will not attach but will supply
hormones needed to maintain the growth.  If you don't get a dose at least
every 3 days or so the plaque will slough off and pass from your body
without modifying your sperm.  When the process is complete and you return
the cells to me, I will lose my urge to enter you for a week or so until my
body determines whether or not I have been impregnated.

   She went on, "The first phase is something females crave because it
feels so good to start the process your body rewards you for it with
pleasurable neurotransmitter releases and you have a feeling of tingling
and success.  The male can be coy because there can be some initial
discomfort and his body wants to be choosy about a mate.  There is a
courtship process that makes the male's lust so strong that he finds it
easy to give in to the female's gentle persuasion to let her mount him."

   I was pretty freaked out but also really horny after all this time
without sex of any kind.  I was wavering.

   She turned her back on me and bent over on the couch.  "This is what you
get in two weeks if we complete the process.  Just think how good it's
going to feel to give the stuff back to me...sliding in and out while you
have this view but without the clothes...go ahead, touch my buttocks."

   I hesitated and then reached out.  Her buns felt very firm yet had a
slightly yielding tone and the fabric did little to interfere.  I inhaled
from the sudden excitement.

   She looked over her shoulder and as if she was selling something said,
"Feel how healthy and strong they are...squeezable".

   I squeezed.  I was lost.

   I asked "What would we d-d-do?"

   "We start with the courtship walk.  But first, let me show you how my
parts are arranged and what I look like with my clothes off.  I'd like for
you to do the same please."

   Shan-dra stood up and took off the stretchy white outfit which due to
advanced technology did not require undergarments.  She had small but well
formed and very feminine breasts, with areolas that were more blue than
pink or brown.  I looked down at her crotch and saw her organ, which she
gently stroked erect.  It looked like an average-sized uncircumcised human
penis with dark spots about 1 cm apart.  The end looked slimy.  There were
of course no testicles since she didn't need to have a lower temperature
area to produce sperm, or need to produce them at all.  She held it up and
pointed to a ridge just below the base.  "This is where the DNA is returned
and where the young enter the world." Then she turned around, still
standing, and opened her legs a little.  My jaw dropped when I saw her rear
tapering down to the perfect lines where it joined the backs of her legs.
"I have an anus just like the males of our species but for females it is
exit-only and does not develop the natural cleaning and lubricating glands
that appear at sexual maturity in the male."

   She stood back up and examined my parts.  "Nice testicles, bigger than
the ones of our males since the female is already linked to one male at the
time of the return because of the shared genetic material, our males do not
need to make as much sperm.  I see you have a return organ similar to ours.
Are your pleasure nerves contained in it?"

   I told her they were, and she reached out and gave a few gentle strokes
and I hardened a little.  I said, "It also has our liquid waste tract, how
about yours?"

   "Yes, the same.  You may be wondering about erection for the receiving
partner.  That is a normal reflex because the nerves for sexual response
are the same during both phases.  The receiving partner ejaculates upon
reaching orgasm but these fluids go unused and it only happens because the
nerves are the same.  Turn around and spread your legs and put your hands
on your knees please."

   I got into position for her to examine me.  "You look like you'll do
fine.  Since you don't have lubricating glands we will have to make do with
some medical jelly." She ran her hands over my ass and said, "Very nice. 
You know, both sexes here on Glapi are attracted almost exclusively to the
buttocks I see from your Earth entertainment clips that your males are also
excited by the fatty tissue surrounding the nursing glands.  Our males
recognize these as feminine but they do not arouse the male enough by
themselves to initiate mating."

   I turned back around.  She said, "Now we will get ready for the
courtship walk.  First, we should cleanse ourselves and then we will put on
the necessary clothing and go out".  I wondered what she meant by "out."

   So I used one of the shower-like cleansing units and put on the fresh
clothes that were provided to me by the house systems.  They were appealing
but a little loose.

   Shan-dra reappeared wearing what looked like a blue catsuit made of a
material like thick spandex.  It was cinched tightly with a high waistband.
She told me, "Here's how it works.  We're going to go for a walk, with me
in front and you behind me, and you can look as closely as you want but you
can't touch until you're ready to return here so we can copulate in
private. Let your mind drift and stare all you want so that arousal is all
you can think about.  My display is going to make it easy for you to relax
and give in when the time comes.  When you're ready to mate, touch my
buttocks."

   With that she stepped out the door and into the hallway.  I think we've
all had that delightful experience when having to go to the same place
gives us a legitimate reason to be right behind a woman in a hallway and we
stare at her ass while glancing up every once in a while to avoid being
caught.  Her ass wiggled and I stared and I felt a tingle at the tip of my
penis.  Then we got into the elevator, and she reminded me, "Don't touch",
and turned her back on me and made pelvic thrusts towards the wall.

   The elevator stopped and she stepped out before me.  I stared
continuously as we headed out onto the street.  I felt a twinge of
embarrassment when I realized that everyone on the street would know what
we were doing.  Not just what we were doing now but what we were going to
do later.  Shan-dra turned her head and said, "Don't worry, there's no
stigma attached.  If anything they'll be envious of us.  Concentrate and
enjoy."

   We continued down the level part of the street with most Glapis not even
paying attention to us and some smiling gently, and one woman recognized
Shan-dra and gestured with a single pelvic thrust then went on her way. 
Then we got on a lift similar to an escalator, and Shan-dra's ass was right
in my face.  I've tried to work my way through a crowd to be behind an
attractive woman on an escalator before or had it happen by accident and
it's a feeling that makes you tremble.  I focused completely on her butt
and tuned out everything else.  At the top she stepped off and then turned
to check on me.  I made no attempt to avert my gaze and she looked pleased.

   She bent down to fix her shoe, probably on purpose, and I felt a shiver
of anticipation as I observed how tight and round her cheeks were.  Instead
of the normal polite way of a quick look followed by walking by the woman,
I just stopped and stared the whole time.  She started walking again and I
followed, mesmerized by the way her body flexed the material.  Suddenly she
turned and stepped into a large shop!  We went down the aisle and other
shoppers knowingly gave us the right of way.  She stopped to look at
something and I stayed right behind her, looking straight down at the curve
where her waist flared out.  We went back out onto the street and I
realized that I was becoming barely aware of where we were going or what
she was doing.  I'm sure she was purposely displaying her buttocks in
different ways to crowd my mind with lust.

   We went through all kinds of displays and I could no longer turn away at
all.  My mind was crowded only with desire.  So firm.  So confident.  So
perfect.  So right.  So fine.  So...deserving.  The twisting continued. 
Shan-dra turned her head and said something, and I said, "Whhhuuuu?" I was
no longer paying attention to my surroundings or other senses at all.

   She repeated herself and said, "I think you're ready".

   This was it.  So right.  I reached out and placed one hand on each side,
and whispered in her ear, "Let's go somewhere more private."

   She said, "Follow me.  Let your mind drift again".

   And I did.  I watched her and tried to think only about her ass. 
Thoughts about whether or not being penetrated would be uncomfortable crept
in.  I did as she had said and focused on how powerful, how curved, how
overwhelming, how dreamy, how wonderful it's going to be to lose my
virginity to such a healthy woman.

   When we arrived inside the flat, she turned and held me.  She explained
that Glapis don't do the "mouth rubbing" that she saw in Earth videos and
to please not do it, but that it was ok to hug and caress all I wanted.  We
would now go to separate lavatories to prepare and then would meet in the
sleeping chamber.

   I was surprised to hear from a house assistant system with a soothing
feminine voice that it would be assisting me with preparations.  First I
was to use the toilet normally.  Then it directed me to a device somewhat
like a large bidet.

   "Relax...a small nozzle will be entering your anus to prepare you for a
clean and comfortable mating".

   I tried to relax and the system made it easy.  It was either very well
programmed or it had plenty of experience in getting men ready for sex. 
The enema tip vibrated slightly and was very small.  It went in with no
feeling of stretching, I felt some pressure, it withdrew, and the system
instructed me to expel the fluid.  Then a gentle spray washed me clean.  A
second cleaning cycle completed the process.  I was then directed to a warm
bath.



   "This will help you to relax."

   I reclined in the warm water for about 15 minutes while the system
played a slide show on the wall across from me to keep me occupied and
aroused.  The pictures were of excited looking couples with the male
crouching in front of a kneeling female who was obviously inside of him. 
The sounds of sex played, with the soft moans, sighs, groans and cries of
men and women enjoying intercourse.  I felt eager to be doing the same. 
The water drained and soft jets of air dried me off.

   "Now it is time for final preparation.  Please return to the sex
assistant".

   I figured this was the bidet thing and sat down on it.  A new probe
appeared and gently entered me.  "Shan-dra has instructed me to supply you
with the lubrication that your species does not produce, so that you will
be comfortable".  With that it proceeded to coat my rectum with a soothing
substance that felt slippery around my sphincters.  "It is time for you to
mate now".

   I stood up, naked, and walked to the sleeping chamber.  A soft indirect
lighting illuminated Shan-dra, who was lying naked on her back on the bed.
Her breasts looked a little swollen and her nipples were sticking straight
up.  I saw her organ partially erect and the end was practically dripping a
viscous fluid.

   "Come here," she said, "and lie face down."

   I complied, and she moved to straddle my legs.  She massaged my back and
said, "How strong.  You know I really like your muscles.  So well-defined
and so masculine." She stroked my arms.  I felt her organ brush my back
several times.  Her hands gradually moved lower down until sometimes she
was rubbing the area where my buttocks joined my waist.

   "Now I'm going to give you an even better massage." She swung her leg
over and knelt next to me to reach over for something and then put a
protective glove on one hand.  "In old times we didn't have these, and it
was probably kind of gross, or maybe they didn't have foreplay, but since
we can, we do it this way now."

   She reached over the head end of the bed and in the soft light I could
just barely see a dispenser controlled by the house system squirt a
lubricant onto the glove.  "Spread your legs for me." I complied.  So
wrong. So right.  Her gloved hand smeared warm lubricant onto my hole.  She
touched in small circles with increasing pressure.  It felt good.  I raised
my hips slightly to give her better access.  She slid her other hand under
me and had just enough room to wrap it around my penis and gently tug back
and forth.  I sighed and became erect.  Then one finger pushed in a firm
circle around my hole and then gently pressed inwards.  My sphincters tried
to do their job but became tired and relaxed, and the finger slid in. 
There was a slight burning sensation and a little bit of pulling apart, but
she held still for a moment and it felt fine.  The fullness was an
interesting new sensation.  Then she began stroking my penis while moving
her finger in and out of my anus at the same time.  With the distraction I
forgot about the slight irritation and enjoyed the fullness.

   She asked, "You ok?"

   I was short of breath but managed to say, "Yes.  Keep going.  I'm so
nervous...."

   She slowly added a second finger and then held still again.  I inhaled
and held my breath for a moment and then let it out.  I felt my erection
subside.

   "That's it, deep breaths; keep breathing all the way in and out."

   Shan-dra stretched my sphincters, which still had not quite given up but
were cooperating.  She kept rubbing my semi-erect penis with one hand and
putting pressure on my prostate with her inserted fingers.  I was losing
normal thought from all the new sensations.

   She let go of my penis and started rubbing my lower back instead.  "Keep
relaxing...that's it...you're doing fine...."

   I felt her erection brush my leg and trembled with fear and desire.  I
reached back to touch it and moaned from an intense feeling of excitement.
It was going to go into me!  I was scared but I wanted to do this.

   She put a third finger in and separated all three then brought them
together over and over.  My anus was opening up.  It felt good.  She took
the fingers out and lay down across my back, pushing me down flat.  She
threw the glove, which the house mechanisms took away.

   "Feel my breasts against your back.  Remember that I am a woman.  Now
reach back and get a good grip on my buttocks." I reached back and felt the
delicious firm yet yielding flesh again and drifted further away from
normal consciousness.  "Exciting, isn't that?  These are the buttocks that
are going to do most of the work, and I want you to think about that and
use your lust to crowd any worry from your mind.  It is natural for a man
to give himself to a woman with glutes like mine...keep thinking about my
tight buns and it will be easier".

   I managed a "Yes...your ass...I want you inside me.  Please...be
gentle...know you will...."

   She got off my back and from the movement of the bed I could tell she
was kneeling behind me.  She gently tugged on my hips and I knew what I was
supposed to do.  I got down on my knees with my head on my hands and my ass
in the air, with my legs slightly apart and said, "Take me".  Shan-dra used
one knee to separate my legs further.  She leaned forward and pumped my now
erect penis a few times, then leaned back and put one hand on my hip.  She
rubbed her erect organ around my hole with her other hand and I felt the
slimy lubricant from it.  She pushed against me with a gentle pressure.

   "Bear down and relax like you would for a bowel movement."

   I did, and I felt myself opening slightly.

   "That's it, let me in."

   The head began to stretch me more and slowly slid past my sphincters.  I
inhaled sharply and then cried out from the intense mixture of pleasure and
pain as the head popped in and she placed her hands on my hips and slowly
slid all the way in.  I heard her sigh in pure pleasure.  The unusual
feeling of fullness caused me to lose my erection but I barely noticed.

   She leaned forward and asked, "You ok?"

   "Yes, I think so...I feel so...full."

   "It feels so good to be inside you...it's been a while.  Just keep
relaxing and you'll adjust soon."

   She stayed all the way inside me and reached around to slowly move her
hand up and down on penis, which returned to a semi-hard state.  The
stroking felt so much better than it did without something up my ass.  She
leaned back and held my hips again and began to slowly withdraw.  Then she
slowly pushed back in.  Slowly and gently she began a rhythm of in and out
motions.  Our breathing synchronized.  My sphincters gave up and relaxed
and now our coupling turned to pure pleasure for me too.  She stopped her
thrusting periodically and reached forward to stroke me erect, then would
let go and start pumping again.

   She said, "I'm pushing into you with my ass.  Every time I clench my
cheeks I enter you again.  You loved watching my ass before.  Just think
next time you're studying my ass how every tight twisting motion could be a
firm thrust up your ass!"

   I said, "This feels good...I can't believe how good...I love having you
inside me...keep pumping me with your tight ass!"

   Shan-dra made some short powerful thrusts and pounded her thighs against
me, grunting with the effort, "uh uh uh uh uh".

   I moaned from the intensity of each stroke, "ah ah ah ah ah".

   "I love pounding your sexy ass!" She kneaded and caressed my cheeks. 
"So manly!  So firm!" She kept going...in, out, in, out.

   "Do it harder!"

   She made a few more powerful thrusts, and then stopped!  She rubbed my
back and then stroked me hard again.  My breathing slowed a little and I
sighed softly.

   "Feel good?"

   "Yes, but I want you to move again.  Take me.  Take me.  Make me yours!"

   She went back to holding me by the hips and began a slow but firm in and
out motion.  I moaned both from pleasure and to encourage her.  She made
long, slow moans almost like humming.

   She said "So good.  Mmmmmmm...Ahhhhhh.  Ahhhhh.  Ahhhhh.  Mmmmmmm....."

   I felt tense yet relaxed and my whole being focused on our coupling. 
In, out.  In, out.  It was such an exciting new thrill to feel her inside
me.  I urged her on, "Do me faster!  Harder!"

   She picked up the pace as much as she could, and was gasping for breath
and groaning as she worked her organ in and out of me.  I was alternately
moaning incoherently and telling her "More more".

   She said, "Are you ready for it?  I'm going to flood you!  Think about
my ass!  Uh Uh Uh Uh!"

   I half grunted out, "I love your ass, pump me, pump me with your tight
ass!  Give me your seed!"

   Shan-dra clawed at my ass and thrust into me as hard as she could.  I
cried out in one long wail.  She made a loud grunt, "Uuuuuahhhhhhh!" pulled
back, pushed in hard, "Uuuuahhhhh!  Ahhhhhhhh!  Ahhhhhhhh!" She was
releasing a jet of her fluids into me each time she cried out!  Suddenly I
felt a tremble all over and then a tingle that spread from my ass to the
tip of my penis and I yelled uncontrollably as I came and came, "Oh oh oh
Ahhhhhhhhhhhh!" My sphincters contracted around her hard organ causing a
wave of pleasure and pain each time I squirted my own semen onto the
sheets. She seized me and made one final thrust and then stopped.

   She gently slid her organ out of me since she knew that orgasm makes the
receiving male want the fullness to stop.  My juices were everywhere.  Hers
started running out of me.  She quickly gave me an absorbent pad.

   "That was incredible," she said.

   "It was great for me too...I didn't realize that the hormones in your
semen would cause such a sudden and powerful orgasm."

   She said, "Yes, it's nature's way of keeping men coming back for more.
You're going to be a little sore since this was so new to you.  Let's
freshen up and then meet in the hot tub room."

   I went back to the lavatory and just about everything came out.  I felt
a slight irritation inside and knew that enough of her juices had stayed
deep inside me that the process had started.  I was a little worried about
that but I trusted her, and besides, the anal sex had felt good...too good
to stop.  So intense...I came so much...and her irresistible buttocks
guaranteed that I'd soon be under her with my legs apart and groaning while
she pleasured herself by stretching my rectum over her organ....

   I used the cleansing machine and it washed off the outside of my crack
but told me that I needed to keep anything still inside for now.  I went to
the hot tub room.

   "Come in, the water's warm and it will help minimize any soreness."

   We were still naked.  I climbed in and it felt good.  Shan-dra had a
smile on her face and looked like she had just had sex.  I felt a twinge of
embarrassment she had just taken me from behind and ejaculated into me then
I thought about how attractive she is and how I had just had the best
orgasm of my life.

   She pulled me over and put her arm around me and said, "So that's how we
do it.  We will need to copulate again about every two days to keep the
connection forming; without the hormone doses it will stop and be resorbed
by your body.  Should take about 5 times until we start seeing the dots in
your semen."

   "What do we do next?"

   "It's important that we maintain our work as good as or better than it
is now.  As long as we aren't slacking off no one will complain.  You might
not want to tell the other Earth people about this in case some of them
don't understand.  I'm really looking forward to working on the engines
with you sex is the best part of life but there are other things and we all
need to make a living.  We should let you rest on alternate days so that
you can be comfortable and to give your body time to handle the unfamiliar
material.  I will avoid masturbating on the off-days even though you're
making me horny already so that I can give you everything I can produce. 
Use your bodily systems like you always would we have ways to make up for
the limitations of your natural cleaning and lubricating functions.  We
should meet back here in two days.  I can't wait to join with you again."

   "I can't wait either, but I am a little sore and if a two day wait is
how it normally works then I'm ok with that.  My ass is tingling and I feel
like you are still inside me.  You made it so comfortable for me and made
sure I enjoyed it too instead of just working on emptying yourself."

   "I would pleasure you anyway but it's important that the male enjoy the
mating so that he will complete the cycle.  You're very responsive and
being a virgin you were very tight around my penis and that always feels
good.  You might want to occasionally do some exercises to maintain your
tightness.  Oooooh.  I can't wait to do it with you again..."

   She was calling her organ her penis!  She must have avoided doing that
while seducing me!  Even on a woman I knew that was definitely a penis and
of course she would think of it that way.  I glanced over and saw her
becoming erect even in the water.  She said, "I have to go so I don't jump
you right now.  Just let yourself out when you're ready.  See you
tomorrow."

   With that she left, not even a kiss because Glapis don't do that.  I
stared at her ass the whole way and felt twinges all over.  I relaxed in
the water for a while and then went to my flat.

   The next day at work we were very careful and professional.  We
practiced not giving each other more or less attention than before.  I felt
like everyone knew, but nobody knew.  Other Earth engineers would visit to
see how the engine was going or to drop off parts.  We continued working to
optimize the engines for the Glapi style of ship.  We sat through a meeting
and avoided agreeing with each other or disagreeing with each other any
more than normal.

   I couldn't help noticing the patches on the front of Glapi women's
attire and knowing it was meant to allude to what it covered.  I wondered
how much they had under there and if Shan-dra was average-sized or not. 
And of course I noticed their backsides and wondered how many males they
had squirmed against.  I made comparisons in my head of which ones I'd most
like to let have me.  Then I suddenly wondered if they sometimes looked at
me and wished they could stick their penises up my hole.  They probably
undressed me with their eyes and imagined the noises I would make and
fantasized mounting me and impaling me on their rods before they exploded
in delight and flooded me with their hot juices.  I had to force myself to
snap back to the tasks at hand.

   We worked all afternoon to prepare the engines and made good progress. I
thought we would be ready for an experimental flight in about a week.  When
the workday was over, we parted with the usual pleasantries and I fought
the urge to stare as she went on her way.

   On the second day it was even harder to act nonchalant.  I knew the
woman on the other side of the room would be deep inside me that night.  We
had to make progress to meet our testing plan so I worked hard in between
my unavoidable daydreaming.  Shan-dra must have been thinking about how
good it was going to feel to have me tonight.  I wondered how I compared to
other men she'd had.  A tight ass like hers must have gotten her inside a
lot of men...I didn't want to feel like just another conquest but I liked
the idea of putting out for someone desirable...her buns were driving me
out of my mind.  She turned around and noticed I was staring.

   She said, "I can't wait to put the parts together".

   I knew which parts she meant but answered coolly, "It will be a relief
to make more progress".

   "Do you think you'll be able to help me with the parts later?"

   "Wouldn't miss it".

   We went back to our work and even got a little ahead.  When it was time
to go we gave each other a brief look to reconfirm our date and then went
our separate ways.

   I arrived at her flat and she answered the door wearing a tight shiny
pink outfit.  There was no patch and I could see a bulge already forming.
She twisted her ass seductively as she led me to the dinner table.  The
house machines had prepared a red-colored fruit, some orange stuff that was
sweet and pasty, and a beautiful translucent beverage reminiscent of
lemonade.

   She began, "Tonight we will do it a little differently.  I think you
still need to spend some time in the hot tub to relax and prepare."

   "While I, along with most Glapis, prefer to give and receive from
behind, it is possible to mate face to face.  It can be awkward
mechanically and we have to be careful we do not painfully compress your
testicles.  It can be interesting to do it this way because we will be able
to see each other's facial expressions."

   I wondered how my face would look to her...probably very exciting as I
sighed, gasped, grunted, moaned, and cried in response to her movements.  I
wanted to see her pleasure as she enjoyed me and feel her hot breath on my
neck.

   We chit-chatted through dinner and then I went to the lavatory area.  As
before, the computer provided gentle instructions and guided me through
making sure my rectum was empty, rinsing off, taking a warm relaxing bath
and then receiving artificial lubricant.

   I arrived at the sleeping chamber to hear soft music playing.  Shan-dra
was sitting on the edge of the bed in the soft light with a full erection
and a look of lust.  She stood up, turned her back to me, and flexed her
buttocks.

   She looked back over her shoulder and asked, "What do you think?"

   "So ttt-tight."

   "Go ahead, touch".

   I ran my hands over her cheeks and squeezed.  "Firm...so firm." I was
having trouble thinking and she knew it.

   "Put your hands on the bed for me and spread your legs."

   The house mechanisms lowered with a disposable glove and a container of
warm lubricant.  She began rubbing it around my anus and pushed some in
with a finger.  Then she stroked my erection while slowly massaging my
hole. It was so relaxing that I moaned softly.

   "Ready?"

   "Yes".

   "Lie on your back with your knees up and legs apart."

   I complied and pulled my legs up enough that my spine curved a little
and my hole was exposed.  I felt so vulnerable.  And then I saw her holding
her erect penis out.  It was no bigger than mine but I was still amazed
that it had fit into me...was going to fit me again.  There was a large
slippery-looking head.

   "I'm going to put this inside of you now!"

   I felt fear and craving but I was ready.  "I want you.  I need you. 
Stick it in!  Keep me comfortable...please...start slowly...."

   She crawled over me and distributed her weight between one arm and my
hips.  With the other hand she reached down and pressed the head against my
hole.  She applied gentle but firm pressure and my sphincters gave in to
the inevitable.  I inhaled sharply and my mouth made an "O".  She had a
look of concentration and relief on her face as she lay still on top of me.

   She said softly, "It feels so good to be inside you again.  I've been
looking forward to this for two days and it feels even better than I
thought it would."

   "I felt empty and now I feel fulfilled again."

   "I knew you'd learn to relax and let me in...so good...ahh."

   "I'm so glad that getting inside me feels good to you.  Giving someone
the pleasure and relief of achieving penetration is new to me."

   "Do you feel good?"

   "Yes...your body is so hot...the stretching makes me tingle all
over...the pressure is making me drip...I want to feel you deep inside
me...."

   She rested some of her weight on me and began to move in and out.  She
moved slowly while she felt out how to pump me without squeezing my
testicles but she was adjusting quickly.  I was already breathing heavily.
She had a look on her face that was mostly concentration but she was
obviously enjoying herself.  She slowed down and gazed into my eyes.  Then
she ground into me with powerful thrusts, grunting with the effort on each
push.  I groaned back each time I was filled.  I was starting to get a
delicious electric feeling on the tip of my semi-erect penis as her body
rubbed against it.  She slowed down again but didn't stop.  I urged her on.

   "Stuff me!  Stretch me open!  I love it!"

   And then I reached up and pulled her buttocks down and into me and
struggled to grind against her.  I relaxed again and she continued her
relentless in and out motion.  In out.  In out.  She had a look of
dominance and pleasure on her face and I wondered if she felt like she was
conquering me.  I reached up and lightly pressed my hands on her ass cheeks
as they flexed and relaxed powerfully.  It felt so right that I was under a
woman with the buns of a stud.  I imagined how exciting it is to see her
moving, walking around, and advertising her fitness.  So right to have her
be the one to have me.

   Her small breasts were swollen from her arousal and had taken on more of
the blue color that was normally only around the nipples.  Her face had
flushed a little with the exertion.  I didn't want her to stop.  I started
moaning to encourage her.

   "Oh oh oh.  Ah ah ah.  Oh oh oh."

   She grunted back in obvious pleasure, "uh" with each push into me.  "Uh
uh uh".

   We were synchronizing our animal noises.

   "Oh uh oh uh oh uh."

   We made matching noises.

   "Ah ah ah ah ah ah"

   Her eyes became glazed and her pumping sped up.  She gripped me tightly
by the shoulders.

   I almost involuntarily said, "Harder, yes, that's it, harder!"

   She gasped out, "Are you ready?"

   "Oh yes, I want your juices, I need your juices, shoot them up my ass!"

   Her face twisted in concentration, pleasure and exertion as animal
instinct took over.  She raised herself on her arms, took her weight off
me, and pounded me even harder.  She was wheezing trying to get enough air
and expelling breaths with a long grunting sound.

   "Uhhhhhhhh.  Uhhhhhhhh.  Uhhhhhhhh."

   My conscious world shrunk down to our joined organs and now and then I
saw her over me.  I was moaning in time to her loud breathing.

   Suddenly, she spoke, "Yes!  Yes!  Yes!"

   Then she put her weight back on me and pushed deeply into me.  I was
just barely aware that she was spraying in the first jet of her fluids. 
Her breathing stopped for the first squirt, her face contorted in ecstasy,
and she yelled as if in triumph with the second squirt,
"Yaaaaaaaaaaaaaaaaaah!" Then my body absorbed enough of the hormones in her
ejaculate to trigger my orgasm.

   "Ahhhhh!  Ahhhhh!" "Ahhhhh!"

   I cried out loudly with each of my own contractions as my useless semen
sprayed all over us.  She went on filling me, instinctively pushing in as
far as she could for each injection and being rewarded with intense waves
of pleasure.

   Finally our juices were spent and we returned to normal consciousness. I
hugged her as she lay on top of me.  Then she slowly withdrew.  There was a
popping sound as she pulled out and we both giggled about it.

   She said, "That felt so good.  You're great at mating!"

   "Thanks, you're more than great...I've had my strongest orgasms ever."

   She said, "I want you again already.  But let's get you to the hot tub,
you'll benefit from it this second time and then after this you'll probably
consider it optional."

   The house system lowered a tray.

   "Here's a pad to help you keep it all in on your way to the lavatory."

   I used the pad and then sat on the toilet and let everything out and the
systems cleaned me on the outside only.  I had some of Shan-dra inside me.
It felt wonderful to know that.

   I joined her in the hot tub and the house system served us drinks.

   I asked, "Do I have your genetic material growing in me now?"

   "You probably do, but the third coupling practically guarantees it."

   I wanted to kiss her but she had said she didn't like that.

   "Will I feel anything?"

   "Not much, but you might feel something a little like when a cut is
healing, just a slight itch that will come and go, when the probe tissues
are moving."

   "I'm nervous."

   "That is normal, even for a Glapi male.  It's unusual to have a piece of
someone else growing inside you, but just think how much worse it is for us
females.  We have to have a baby's head come out of our return slots; all
the male has to do is let a few tiny probes grow inside him.  Of course,
with contraception, a male ends up growing a lot more probes in his
lifetime than a female grows babies!"

   "Yes, but in your system the male also gets the female's penis stuffed
into his anus 5 times for every time he gets to put his penis into her
return slot.  On Earth the male gets to squirt his juices into the female
every time and nothing grows in him."

   "You don't want to stop though, do you?  Our way is more intense and I
think you're already going to find it difficult to go back to simple Earth
sex."

   "You're right.  I'm hooked.  Can I see your ass again?"

   She laughed and leaned outwards over the edge of the tub.

   "Can I touch your ass again?"

   She shook her derriere invitingly.  I put my hands on it.  I was very
hooked.

   She sat back down, and I said, "On Earth, when a man and a woman spend
an evening being intimate with each other, they usually sleep together. 
Our tech team has individual flats so nobody would know.  Would that be ok?
It felt a little cold to me when we separated that first night."

   "Ok.  Tonight we can sleep together.  Tomorrow we sleep alone though
it's going to be bad enough having to get through the day without humping
you against the lab table.  No problem with clothing, the house system will
take care of what you need overnight.  Basic male toiletries are in the
lavatory you use".

   "Great.  I want to fall asleep holding each other."

   We visited the lavatories and the house system gave me pajamas.  It told
me that this was to help keep our desires under control.  I used the toilet
and then put the pajamas on.

   Back in the bedroom, Shan-dra was waiting.

   She asked "How do you want to arrange ourselves?"

   "I'd like to fall asleep holding you from behind so I dream of the
return."

   "Ok."

   We lay down on the bed together.  I held her and pressed my crotch
against her ass.

   "Shan-dra, may I kiss you goodnight?"

   "No, I don't do that, it would feel too strange."

   We fell asleep.

   The next day we made sure to arrive at work separately.  The house
system had fabricated highly convincing Earth style clothing and I looked
normal.  Shan-dra wore tight pink pants with a wide stripe pattern created
by texture differences and a scoop-necked white top with cleavage-creating
support.  Even after all we had done I kept staring throughout the day. 
But we continued to work hard on the project.  We would be ready for a test
with a moving engine soon.  The project directors for Earth and Glapi
showed up and we provided all of the necessary reports and paperwork on
time.

   I passed the time in a boring procedural meeting daydreaming about the
next time we would mate.  I pictured Shan-dra renewing my cravings by
taking me on a new courtship walk.  Then we would return to her flat where
I would eagerly present my ass and she would immediately mount me from
behind.  I imagined a light show and music that automatically synchronized
to our peaks of activity as she rode me and then reached the crescendo as
she seized me by the hips and emptied herself into me.  I suddenly snapped
back to the meeting and realized I was breathing rapidly but no one else
noticed a thing.

   We reluctantly returned to our separate flats that night.  I thought
about her all evening while trying to watch an entertainment video.  I
wanted sex.  I needed relief.  The hormone doses were making me feel like I
was in heat.  I changed the program to Glapi erotic stimulation.  The
program was for males.  It was in the style of a documentary but it was
meant to cause stimulation.  The sexy female narrator described the
different variations of attractive buttocks and for each one a model would
first pose with her back to the viewer and then take a short walk while the
camera followed.  I learned that many males enjoy the heart-shape, with its
feminine widening at the bottom, but others prefer a shape more like a
figure eight on its side that emphasizes firmness.  Unattractive buttocks
that would not excite a male enough to cause him to let the female
penetrate him were shown briefly for comparison.  I loved the idea of
females having to let me select for a change.  I started to gently rub
myself.  A female had better have a good butt if she wants me to put out. I
rubbed harder.

   The program showed two models side by side from behind, one with a
heart-shaped ass in red pants that pulled up gently to give her a
delightful separation and one with a figure eight shaped ass in
form-fitting light blue pants that emphasized tightness.  The narrator
stepped in, looked right at the camera and said, "I hope you're having a
good time.  Make yourself comfortable if you aren't already.  The ladies
are going to walk side-by-side so you can choose the one you like better
and show your appreciation.  Just shoot it into the air and your house
system can clean it up." I stroked away.  The models started walking away
from the camera, which followed them.  The heart-shaped one turned suddenly
and said, "Go ahead, enjoy!" The one with the tight little round cheeks
turned, smiled, and made a jerking motion with her hand.  I felt a twinge
of fear but they couldn't really see me.  Then they started walking again
and the narrator voice said, "Which of these perfect asses would you rather
give it up for?" The models walked some more and the camera alternately
showed their whole bodies and zoomed in for close-ups of their twisting
cheeks.  "Just imagine the return, how good it would feel, to be on one of
these asses, feeling the slot squeeze and suck your penis as you look down
at the succulent globes...not wanting it to end but needing...needing to
give the seeds back...sliding in...pulling out...sliding in...that's
it...stroke harder...buns, beautiful buns...." I stroked furiously. 
"In...out...pumping...look at those asses!" The models kept right on
showing off.  "Keep going...that's it...so tight...so round..." A soft
moaning soundtrack started, "uh...uh...uh...uh...uh".  "Time to let
go...let go...get ready to finish and then you'll feel better." "Uh, hah,
uh, hah, uh, hah".  "You'll see up to ten minutes of wiggling now, do your
stuff!  Choose your favorite and come for her!" The camera focused only on
the two butts, side-by-side.  The sounds continued, "huh, ah, huh, ah".  I
watched and began to let myself go.  At last I focused on the heart-shaped
model, began shooting jets of semen into the air, and howled with relief.
The system must have had an audience-awareness programmed in, because the
narrator voice said, "There...feel better?" and the frame froze on the
models' bottoms.  I switched off the entertainment system, cleaned myself
up, and went to sleep.

   I went in to work the next day to see Shan-dra wearing a black catsuit
with white polka-dots.  Whenever she moved the dots emphasized the shifting
of her cheeks and it was driving me crazy.  I eagerly anticipated the
evening's copulation two days was getting to be a long time without getting
more of her juices up my ass.

   She said, "Don't worry.  The craving is probably getting strong now;
that's normal.  Keep working.  We have to get this done so we can play
later."

   Suddenly, the project director for the Earth engineers entered the room.
He said, "Hi Shan-dra, I've been hearing great things about you two and
your progress.  We've all been doing so well that the Earth team is getting
a special surprise a two-day trip to the resort complex on your moon!  And
you will get some well-deserved rest before the big flight test!  We're
leaving right after lunch, straight from here!  Well, I've got to let
everyone else know and tidy up a few things before we go, see you later!"

   Shan-dra and I looked at each other with longing.  With replication
technology I couldn't even say I needed to go home to pack.  I said, "It's
been two days and this trip will be for two days.  Not to be too
calculating but we can't go more than three days without a new dose, can
we?"

   "No."

   "What are we going to do?"

   "You can't not go.  It would make no sense to the rest of your team and
that would attract a lot of attention we don't want."

   "I could become ill."

   "If you didn't have something really bad, the med center would just
treat the symptoms and send you on your way."

   I felt strange.  "But I neeeeeed you." I hadn't realized just how strong
the urge to have her inside me was becoming.

   "It's no better for me.  Instinct doesn't know about the seeds growing
in you, but it does give me an overwhelming urge to get inside you."

   "I'm going to be sad on this fun trip.  Will I get some kind of
withdrawal symptoms besides?"

   "No, we won't let that happen.  I've got an idea.  Follow me...you know
you like to...just look right down and let your mind drift...."

   She stepped out into the hallway and looked back and forth.

   She said, "All clear!"

   "Won't security see us or something?"

   "They'll know we're not dangerous and they don't concern themselves
beyond that.  Follow me...and look down and enjoy."

   I looked down to see the swellings of her buttocks in the polka-dot
suit. Her crack was so defined.  Twisting...twisting.  I heard myself sigh.
I followed as she led me down the narrow hallway, watching her ass and
willingly descending into the primitive part of my consciousness.  The dots
moved back and forth.  I was mesmerized.

   She opened a door and we stepped into a small lavatory with a toilet and
a counter with a cleansing unit.  The door gently closed behind me.  She
backed into me and pressed the ass I'd just been staring at into my crotch
and said, "Are you empty or fairly empty?"

   "Huh?"

   "Have you taken a dump lately?"

   "Oh...this morning."

   "That'll do.  I want you too badly to care that this lavatory doesn't
have the stuff to wash you clean inside.  At least it has slippery jelly
meant for return slot care."

   She stepped behind me and pulled me against her crotch.  I felt a bulge
even through the front pouch on her outfit.  She pressed on my back and I
bent over and grabbed the counter.  I heard her unfasten her clothing and
drop it on the floor.  She stepped on the backs of my shoes and said, "Lift
your feet".  My shoes popped off.  I felt her unfasten my pants and yank
them down.  "Step out of these.  Arms up".  She pulled my shirt off.  I
looked back and saw her small breasts jutting out and her organ erect and
dripping slime.  "Spread your legs!" She used her knee to push my legs
further apart.  She smeared the jelly on my hole and pushed some in
bare-handed.  "Are you ready?"

   On a whim, I turned around and said, "Kiss me first!"

   "But I don't...."

   I gently grabbed her erection in my hand and stroked it.  "Kiss me like
you mean it and you can stick this up my ass."

   "Ummmm...."

   "Think how good it'll feel...my tight hole stretched out...massaging
your organ...pleasuring you with every stroke...."

   She was wavering.  I realized suddenly that kissing was unfamiliar to
her but not disgusting to her.

   "So good...the tip goes in...you sigh with relief...the pumping
starts...."

   I put my arms around her and she didn't resist.  We kissed like we meant
it.  "Thank you...now I need for you to use these!" I reached down and
squeezed her glutes.

   She turned me around and put one hand on my back to hold me down and
used the other to stuff herself into me to the hilt.  She whispered into my
ear, "Try not to make much noise."

   I felt her begin to thrust and I panted but tried not to cry out.  Even
if security didn't care, the other Earth people probably would.  Shan-dra
pushed into me hard and urgently.  She was panting too but trying not to
make noise.  I needed this.  I was becoming addicted to having her
penetrate my anus.  I knew that I would start wanting more as soon as we
finished.  I was stretched tightly around her and I kept thinking about her
hot ass to make myself relax and give in to the moment.  Suddenly, she
pulled my hips down and pushed her crotch up and I knew she was filling me.
As her orgasm started, she yelled "Ohhhhhhhhh!" and then stopped herself by
gently mouthing my shoulder.  As my orgasm followed I had to avoid hitting
my face on the counter as my spine contracted and I hunched forward.  She
hung onto me and jammed my ass against her thighs for each spurt.

   Now that our urges were satisfied, we came back to reality.  I said, "Do
you think anyone heard you?"

   "I hope not."

   We quickly put our clothes back on, and agreed to leave separately, and
hugged tightly for a moment.  Shan-dra opened the door and an Earth woman
was standing outside.

   "Are you ok?  We heard someone yell."

   I was terrified that the woman would want to use the lavatory next. 
There was nowhere to hide.

   Shan-dra stepped out into the hall and closed the door behind her and
said, "Malfunction.  It's disgusting in there.  I was startled when it
overflowed...."

   The woman said, "Oh, I guess I'd better use the one on the next floor."

   I used the toilet to empty the excess juices and then I stepped out and
carefully made my way back to the engine staging room.  I was a little sore
but I was glad we had been able to mate again.  I kept thinking about how
tight her ass is.  So right.  And our first kiss.  Her first kiss ever. 
She had my anal virginity but at least I had given her first kiss.  I
wanted to kiss her more.  And bend over for her more.

   The trip was fun, other than that I was horny the whole time.  I had to
be there and it was meant as a reward, so I made the best of it.  I had
some drinks with my colleagues and we caught up a little on the project
since we had all been a little focused on our own immediate tasks.  We all
agreed that we would be ready for a test flight within the week and that
while the test pilots would do the really rough stuff and test out the
transdrive to its limits in about two weeks, I would do the basic
confirmation that the engines were working by swinging the test ship around
the moon on impulse drive and briefly firing up the power plant to make
sure it was working as expected.  A Glapi would go along with me to observe
and to gain shared knowledge.

   They had a game called 3D Golf that took advantage of the lower gravity
on the moon combined with the Glapi understanding of gravity control to
allow pushing a ball in three dimensions with a goal of getting it to go
near enough to a small gravity well to be collected with as few pushes as
possible.  Small belts that were lighter than anything Earth could produce
allowed players to move almost at will through the playing area they had a
technology well beyond ours in this field and it was seen as so routine
that they used it for play!  The clothing had to be rather form-fitting
since we were as upside-down as we were right-side up and we were
alternately feeling pulling or weightlessness.  There were amusing
obstacles like strong gravity wells with padding that could actually draw a
player in and require a one-stroke penalty to be released, liquid held in
force fields that players were allowed to try to swing through, a robot
with slowly moving arms that blocked access to the goal, and nets held in
place by repulsion between inverted gravity control units.  Such a fun
game! We had to have this technology!

   I was almost able to block sexual thoughts from my mind for a while but
the hormones were relentless.  I was still enjoying the game, but I began
comparing the Earth people's bodies.  I looked at some of the men to see if
I found them attractive, but I did not.  The men looked like men,
relatively tall, muscular, and broad-shouldered.  I knew they had penises,
which I found I had no urge to take up my ass, but I did compare them with
the Earth women and note that the women's suits had tight and flat
crotches. I was reminded that I had been having trouble persuading them to
mate with me and felt a little inadequate, but then, I was having regular
intense orgasms with a female partner now.  The Earth women's asses weren't
as perfect as Shan-dra's because not all Earth men are focused on butts and
even the ones that are often like soft buttocks with a nice shape.  Glapi
women have to have firm buttocks both to attract a mate and to do the work
of all the necessary copulation.  Then I absentmindedly examined some
breasts around the playing area.  So big.  So juicy.  Even ass men like
breasts, especially big ones.  And compared to Glapi women, almost all
Earth women are stacked.  And now their breasts were literally defying
gravity.  I wanted to lick them.  I wanted to lie on top of an Earth woman
while she was flat on her back and see her breasts jiggle each time I
thrusted into her.  I realized I was drifting.  And then I was drawn in by
one of the high gravity obstacles and immobilized.

   I was released by the facilitators and tried to renew my concentration
on the game.  I asked some of the other engineers what they had learned so
far.

   One woman said, "You can actually use those gravity traps to your
advantage.  It's possible to bank a shot off of them and use their gravity
as a slingshot.  I'm told a Glapi pro can bank the ball past two different
gravity wells on one swing."

   Another said, "You seemed distracted out there."

   An Earth man suggested, "You just need to get laid."

   They all laughed as I blushed a little.

   On the second night, I was so horny I could hardly stand it.  We were
going to return the next day and I knew I'd be on my knees in front of
Shan-dra that night, but I had to have some kind of contact with her.  The
resort's current position on the moon relative to the planet Glapi made
full video difficult with the hotel's equipment, so I used the audio
channel to call her after working hours.

   I heard her say, "Hello?"

   I said, "I miss you."

   "I miss you too."

   "I can't wait to get back."

   "I can't wait to get on your back." She giggled.

   "I wish I had you inside me right now...from behind."

   "Ummhhmhm me too."

   "Are you getting hard for me?"

   "Yes."

   "I want you to stroke your penis for me and think how good it's going to
feel to shove it up my ass...."

   "Ummmhhhmmmhhh.  I can't wait to get back up your ass."

   I told her, "Keep stroking.  I'm stroking too.  Uhhhhhhhhhmmmm.  Tell me
what you'd say to me if we were doing it right now."

   She said, "Let me in, you know you love it, I'm going to open you up and
then come inside you!"

   "Oh yes, yes, spear me with your pole...hold me down and make me take it
all!"

   "Here it is...relax and it will be a lot easier...yield yourself to me!"

   "I'm trying but you're so big...uhhhhh...feels like I'm being
impaled...uhhhhh...I need it...uhhhhh...push hard!"

   "Ah, yes, that's it...ah ah ah...you're so tight it almost hurts...I'm
all the way in...."

   "Oh, your thrusts are opening me all the way up...I feel sore but I need
it so badly...oh oh oh...that's it...use me to make yourself come!  Stretch
me all the way open!  Oh ah ha ah!"

   "Oh oh oh...nice and tight...so tight...."

   "Ha ah ha ah...do me do me do me!"

   I heard her say, "I'm coming!"

   "I'm coming with you!"

   Our noises mixed.  "Aaaahhhhh eeeeeeehhhh hmmmmffffff ahhhhh!"

   I shot off several feet and made a mess on the bed sheets.  I heard her
wailing with relief.

   After we caught our breath, I told her," We're returning around
lunchtime tomorrow.  Let's get together after work; I'm sure we can think
up something to do."

   The next day we returned.  I hadn't been home in days now but it wasn't
necessary.  I went straight to the engineering center, where Shan-dra was
working on the transdrive prototype.  I walked up to her and put my arms
around her and we kissed and then ran our hands over each other's backsides
then kissed again.

   I said, "See, that wasn't so bad."

   "I missed you."

   "I missed you too."

   She said, "We've got a lot of work to do around here.  I expect we'll be
able to do a test flight in two or three days.  The space frame group is
assembling the body and the controls already and then we'll fit our engines
into preconfigured hard points."

   "I can't wait for the flight.  We're going to test it ourselves, you and
I, before the test pilots get to do the rough stuff, right?"

   "Yes.  Can you fly these things?"

   I assured her that I could.  We worked into the afternoon, when Shan-dra
got a call on the communications audio link.  I overheard one side.

   "Tun-gir, how nice to hear from you...yes, he's here now...how is
Susan?..Wonderful, glad to hear it's going so well...dinner?  We'd love
to...let me make sure...." She pulled her mouth away from the earpiece. 
"My friend Tun-gir and a woman he is dating want to have dinner with us
tonight, is that ok with you?"

   "I thought we were, uh, busy."

   She whispered into my ear, "Don't worry; I'm still going to shoot my
load up your ass tonight." She returned to the phone.  "We'd love to...I
can't wait to meet her.  See you later."

   I asked, "Susan?"

   "We're going to meet my friend Tun-gir and his friend Susan.  Yes, Susan
is from Earth."

   "Are they...?"

   "Yes."

   "How does that all work?"

   "You can ask them about it tonight I'm sure they'll be glad to explain."

   I was intrigued.  A human woman and a Glapi man.

   Shan-dra and I sat through another boring meeting in which we updated
everyone on our progress, which was substantial.  We planned to take a test
ship on a short flight in two days.  The drive system was now complete and
we were touching up the controls.  Since we were going to fly it ourselves,
we also put a lot of time into making sure the safety and environmental
systems were functioning correctly, from the air recycler to the seatbelts.

   We met Tun-gir and Susan at a fashionable Glapi restaurant specializing
in a kind of fluorescent poi.  Poi with vegetables.  Poi with sea
creatures. Poi with a sweet spicy flavor.  Tun-gir was tall and muscular
and had that dark, opaque hair often seen on Glapis.  Susan was the kind of
woman not found on Glapi medium height, blonde, with large breasts even for
an Earth woman and wide hips supporting a bubble-butt.  Being a man, I
appreciated the contrast with the Glapi women and this made her
particularly sexy.

   Shan-dra introduced us all outside the restaurant and then in typical
Glapi style, we followed the women to the table.  I watched Susan's big
round ass wiggle the whole way.  Tun-gir sat across from Shan-dra, and I
had the seat facing Susan--and facing Susan's cleavage throughout dinner. I
hadn't seen cleavage like that since back on Earth and I had to try very
hard not to stare.  They looked so squeezable, so suckable, so ready to
bounce during sex.

   Shan-dra said, "Tun-gir and Susan work on the gravity control project.
Same as us one moment you're bending over some hardware, next you're
bending over for some hard--ware." Everyone laughed.

   The waiter brought menus.  Poi, poi, poi.  Not even Glapi regular food,
just a trendy thing starchy liquid with different elaborate flavorings. 
Like a fondue restaurant but it was more like poi.

   Tun-gir recommended the poi with bugs.  So that's what we had...yummy.
We talked shop for a while, and I stole glances down Susan's blouse, and we
ate various sticky concoctions, some of which were less gross than others.

   I got up my nerve and asked, "So, are you mating yet?"

   Tun-gir and Susan giggled.  Shan-dra looked amused.

   Susan said, "Yes," and made dreamy eyes at Tun-gir.

   "May I ask how it all works in your case?"

   Tun-gir said, "Sure.  Glapis are more open about sex, you may have
noticed."

   Shan-dra put a hand on my arm and said, "For example, I've been sliding
it up this guy's butt for a week and he loves it." I blushed.  Susan's face
twisted.

   I said, "It was unusual at first but it feels too good to stop.  I don't
go around advertising but since we have no fraternization rules I don't
hide it too much either."

   Susan asked, "Is the plaque growing in you?"

   I replied, "Yes.  There's a slight twinge now and then but no real
discomfort."

   "Is it safe?"

   I said, "We think so."

   Shan-dra revealed, "Our xenobiologists examined some of the Earth
scouting vessel crew after the unfortunate misunderstanding in our first
contact.  They weren't optimistic about actual breeding being possible but
they don't think any allergic reaction will occur."

   Susan and I gulped.  But we already knew the scouts had been killed and
that was in the past.  Glapis are our friends now.  And our lovers.

   I said, "It's pretty obvious what Shan-dra and I do we're going through
the initial cycle now and then I'm looking forward to what you call the
return.  But what do you do?"

   Tun-gir said, "The sexual instincts are pretty hard-wired.  Our pleasure
nerves and our urges are the same regardless of who we mate with, so while
there can be some variation we ultimately have to get off the same way we
always would."

   Susan said, "I like Tun-gir because he's fun and he's handsome...he has
a really nice butt...and the sex is great.  Actual entry into the return
slot is fairly rare, while my vagina is ready all the time except during my
period, so for him it feels like he's performing the best part of the
mating process much more regularly than the average Glapi male and that
causes his body to reward him with pleasure."

   I asked, "Do you, I mean, how do you...you don't have...."

   Susan said, "A penis?  No.  I'm a normal Earth woman."

   Tun-gir said, "But I do need a certain amount of penetration for the
mating to feel normal to my body.  It's sort of like when you masturbate
when you do that you try to simulate entry into an Earth vagina using your
hand.  When a Glapi male is engaging in sex with a female, his body needs a
feeling of recent anal intercourse for the coupling and ejaculation to
result in an ecstatic release the semen still could be stroked out by hand,
so a partner isn't strictly necessary at all, but for the mating urge to be
satisfied he needs to receive first."

   Shan-dra looked at Susan and asked, "So how do you do it?"

   "I use a strap-on dildo with neural feedback circuits.  The dildo
fastens to a secure harness around my waist and crotch.  A small interface
with a soft moist jelly pad goes between my clitoris and the dildo and
transfers some feeling into my body.  It's also very exciting just to do
this some human males do engage in this sort of thing to satisfy unusual
urges but most do not, and even the ones that do tend to make it an
occasional thing.  Being able to both give and receive has me hooked on
double pleasure."

   Shan-dra asked, "What's a clitoris?"

   Susan said, "With Glapis, both sexes have a penis where much of the
sexual stimulation occurs.  Earth females do not have a penis, but they do
have a small protrusion that contains the same nerves.  Some say that
having all the same nerves in a concentrated area makes stimulation more
intense for the human female than it is for the human male."

   "You don't ejaculate?"

   "No, but since we don't know what it feels like, we don't miss it."

   Shan-dra said, "All this talk is making me horny.  I need to get some
air.  Let's get the check and walk back to my flat and have a drink"

   Tun-gir said, "My treat," and paid the bill.  Treat?

   I was really horny now.  My sphincters were trying to relax.  I needed
sex.  Then the women made it worse they walked in front of us.

   Shan-dra said, "It's ok guys.  Stare at our asses and lose your minds."

   Susan said, "We can even swap partners for the walk to keep it fresh and
make it feel deliciously wrong," and then she and Shan-dra switched sides!
Tun-gir and I willingly obeyed.  I briefly glanced aside and saw him
looking hypnotized by Shan-dra's ass.  I turned my head forward again and
looked down at Susan's ass in front of me.  It was more rounded than most
Glapi women and almost as tight.  There was an exciting motion as her
buttocks strained against her tight pants.  I wondered what it would be
like to have those squirming as she pumped me.  In and out.  And I wondered
what it would be like to get on her from behind, get to look at her naked
ass up close, feel my penis in her vagina, and finish inside her.  The
hormones were making me crave being the receiving partner though.  I kept
watching the tight twisting motion and thinking it would be so right to
spread my legs for her.  So right.

   When we arrived at Shan-dra's flat, she suggested that everyone use the
lavatories and then meet back in the living room area.  I moved my bowels
to make myself more comfortable for later.  The house system guided me to
clean myself out further and then it lubricated me and supplied a robe.  I
asked it, "Is this what I'm supposed to wear?" and it confirmed that
Shan-dra had told it to give me this.

   I found Tun-gir sitting on the couch.  There was a pitcher of some
beverage on a table to one side.  He was wearing a robe too.  "What's going
on?"

   He said, "I think they want easy access.  Were you lubricated?"

   "Yes."

   Susan and Shan-dra stepped into the room.  At first all I could focus on
were Susan's big breasts she was naked and I hadn't seen Earth breasts in a
long time, never mind the overwhelming kind.  Then I looked down and saw a
strap-on dildo about the size of Shan-dra's organ.  It had the usual
somewhat long head area and spotted look of a Glapi penis.  Some mechanism
was delivering slimy lubricant just below the tip.

   Shan-dra was naked too and sporting a full erection.  Her small breasts
jutted out and the blue nipples were prominently displayed.  The women
turned and stood with their backs to us.  I stared from one to the other.

   Susan said, "Take a good long look.  You're half out of your minds,
aren't you?"

   Tun-gir and I mumbled agreement.

   Shan-dra said, "Stand up and take those off!"

   We threw the robes away, still unable to turn our heads.  Then they
turned to face us, phalluses pointing powerfully in our direction.

   I said, "Let's go to the sleeping chambers now."

   Susan said, "No need." I gulped.  Tun-gir seemed to take it in stride.

   Shan-dra said, "Face the couch and kneel!" We hesitated and the women
grabbed us by the hips and turned us around.

   Susan said, "I know you want us to fill you...stretch you...move inside
you...think about our asses...yield to our powerful asses...."

   We couldn't take it anymore.  I got down on my knees and spread my legs.
Tun-gir did the same.  The women knelt behind us and began pushing in.

   I groaned as Shan-dra slowly slid her organ into me.  I heard Tun-gir
cry out and turned my head.  Susan had taken him and he looked like he was
gasping for air.  I heard Susan reassuring him and murmuring as she
caressed him.  Shan-dra made a soft, "Ahhhhhhh" sound as she fully entered
me.

   The women began to pump us.  I moaned and Tun-gir was panting more
silently.  I heard Susan grunt "uhhhhhhhh" as the feedback sensors started
to feel good, and I turned my head again to see her breasts bouncing as she
thrust her hips back and forth.  Her face was showing pure delight.

   Shan-dra said, "Watch this," and dug her hands into my hips and made
several long powerful thrusts into me as Susan and Tun-gir turned their
heads to look.  I moaned loudly each time as she slammed me so hard that
her thighs made a smacking sound, "Ohhhhhh.  Ohhhhhh.  Ohhhhh." I was
almost emptied, then suddenly stuffed again, then emptied, then stuffed.  I
realized that I was performing a little showing the other couple that
Shan-dra could make me moan.

   Shan-dra addressed Susan, "I don't think you're doing it hard enough
he's not making much noise." Susan made lighter thrusts so she wouldn't
slip out and then slapped Tun-gir on both cheeks at once with each thrust.
He squealed "Oww, oww oww".  Shan-dra said, "That's better...How about
you?" She drew forward, pushed all the way in, and stopped thrusting.  She
put one arm around my waist and slapped me hard on one butt cheek.  I
howled in pleasure and pain simultaneously, "Owwwwoooooo".  She slapped me
two more times then said, "Now the other side." As she was repositioning
herself I heard Tun-gir making rhythmic moans.  Shan-dra slapped me three
more times, pausing before the second and third to make me anticipate.  I
let out high-pitched squeals.  She said, "You want me to stop slapping you
and pump your ass again?".  I said, "Yes, please put your hands back on my
hips and pump my ass."

   The tandem in out motion continued.  Susan picked up her pace and
suddenly yelled, "I'm coming, eeeeeeeeyahhhhhhh", held Tun-gir tightly, and
her breath paused, then she softly moaned in satisfaction.  Shandra
whispered in my ear, "Now watch this," and slowed her pace down a little.
Susan got off Tun-gir and unfastened the strap-on.  Then she bent over the
couch and he entered her from behind.  Susan sighed.  As he began to move,
Shan-dra whispered, "Jealous?  You haven't seen an Earth woman's ass up
close in a long time, have you?" I shook my head a little.  Shan-dra made
some short thrusts while keeping her mouth near my ear.  "And this one has
that translucent yellow hair that Earth men seem to love...and just look at
those big swollen breasts hanging down...swaying...ready to make milk...."
Shan-dra gently pumped me as we watched.  Susan sounded like she was softly
crying.  I watched in envy as Tun-gir rode her wide round ass.

   Susan glanced over and looked like she was in pain from the intensity of
her pleasure.  Her breasts were swinging back and forth.  Shan-dra
whispered, "You look something like that to her too...don't worry, you'll
get my tight buns soon enough...it will be worth the wait." Shan-dra leaned
back up and stroked me in the front while continuing to push in and pull
out.  Tun-gir pulled out of Susan and lay down on his back on the floor
with his feet facing us.  Susan straddled him with her ass towards his
face, grunted as she inserted Tun-gir's penis, and began to raise and lower
herself.  I watched her breasts bounce up and down and was glad I was
mating too or it would have been agonizing to watch.  Susan's mouth hung
open as she panted from the effort.  Shan-dra rubbed her small breasts
against my back and said, "Best I can do."

   Shan-dra looked over and said, "Time for the finale!" She pulled
completely out of me!  Susan crawled forward, put her ass up in the air,
looked briefly at me and put her head down on her hands.  Shan-dra said,
"Now you too...get nice and close to her so you can show sympathy for each
other." I knelt on the floor facing Susan but with enough room so we
couldn't bang our heads and put my head on my hands.  Susan and I looked
forward.

   I saw Susan's face contort as Tun-gir pushed back into her and then I
gasped as Shan-dra pushed back into me.  They started to grind against us.
Susan moaned, "huh, huh, huh." I moaned back, "uh, uh, uh." Susan and I
competitively moaned and groaned to show how good our partners were.  I
could see Tun-gir pumping Susan relentlessly as Shan-dra did the same to
me. I looked at Susan and panted out, "This feels so good...so right."
Susan said, "Me too...good...uhhhhhh...so good."

   Shan-dra said, "Susan comes first since she has the least control over
it.  Go ahead Susan, let go...."

   Susan yelled, "Tun-gir!  Tun-gir!  Do me, finish me, do me really hard!"

   Tun-gir picked up his pace.

   Susan was reduced to incoherency and cried out, "uhhhhhhh, uhhhhhh,
uhhhhhh" over and over.

   I yelled, "Shan-dra, Oh Shan-dra, Oh Shan-dra!  I need your load!"
Shan-dra picked up her pace.

   Shan-dra and Tun-gir were alternately panting and humming with their
approaching orgasms.  Susan and I could only moan, "ahhhhh, uhhhhhh,
haaaaaaaa, ahhhhhhhhh." Susan reached out to me and we held hands.  We put
our heads down and synchronized our moans, one for each thrust, which
caused Shan-dra and Tun-gir to pound us at the same pace, and suddenly
Susan clenched on my hands and howled,
"Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!", the sound stopped and I looked up
to see her face twisted in ecstasy, then she made a few moans while letting
up on her grip and was only panting.  Tun-gir pounded her hard a few times,
then cried out, "eeeeee eeeee eeeee" and pushed all the way into Susan with
each spurt as she squeezed my hands again.

   Shan-dra slowed down a little so I could speak and asked, "Are you
ready?"

   I replied, "Yes...don't stop...fill meeeee!" I could see Susan and
Tun-gir watching eagerly but I didn't care.

   Shan-dra said, "Think about my ass...clenching, relaxing...that's why
you want me inside you...."

   I could hardly speak as she picked up her pace.  "I love your ass...so
perfect...so right...pump me, work your tight ass, ohhhhhhhh...ah ah ah."

   Our sounds blended.  "oh oh oh.  aaaaa.  Huha huha huha.  Ass, yes, oh
oh oh."

   Shan-dra seized me and squirted her first shot deep inside.  She cried
out with each spurt as her body forced its juices into my body,
"Aahhhhhhhhhhhhhh ahhhhhhhhhhhhhh ahhhhhhhhhhhhhh!"

   Then the hormones took effect and I squeezed Susan's hands and yelled as
I expelled my semen onto the floor, "Ass!  Round tight ass
uhnanaaaaaaaaaaaaaaaaaaaaa!  Aaaaaaaaaaa Aaaaaaa."

   I released my grip on Susan's hand.  Shan-dra gently pulled out of me. I
was beginning to take stock of everything that had happened.  I looked at
Susan and we tried not to leak onto the floor.  I realized we were all
naked on the floor and had just had sex while watching another couple.  I
wasn't embarrassed.  It felt too good.  Susan and I gave up, sat down, and
made a mess no big deal since the house systems would take care of it.

   Shan-dra grinned and said, "So, who wants a drink?..."

   The next day I felt a little sore but it was worth it.  Shan-dra didn't
completely tone down her teasing but she let up a little since we knew I'd
need a day to recuperate.  She had on an outfit like black spandex.  I
looked at her ass whenever possible but she didn't purposely bend over or
anything like that.  I could see the cheeks of her ass moving independently
due to the tight material.  I wanted sex.  Me in her or her in me.  I
noticed that I was starting to think about the return.

   Shan-dra asked, "So, transdrive guru, how well are we doing?"

   "The ship will be ready for a test flight by tomorrow."

   Shan-dra asked, "How does the test work?"

   I said, "We will fly together on a prototype demonstrator ship.  The
ship has all the necessary systems but of course no cargo in the small
hold. Just in case we've got it wrong, there will be minimal fuel on board
to reduce the risks.  No point in pressure suits because if the ship comes
apart we're done for anyhow." I smiled.  "The demonstrator has stubby wings
for the landing because we haven't yet integrated the Glapi anti-gravity
landing system and that will help us control flight when we re-enter the
atmosphere."

   "Where are we going?"

   "In a long arc around Glapi's moon.  The flight should last about eight
hours, so we'll be home for dinner.  We will use the moon's gravity to turn
around and start back, then perform a second test of the engines.  We
aren't carrying subspace com systems so we're strictly audio out, nothing
as we pass the moon, and then audio back in.  A team is standing by to help
us and an Earth ship will rescue us if necessary."

   "What's the ship like inside?"

   "There's a small hold to simulate a realistic size of ship for the test,
but since mass doesn't affect the transdrive much but does affect the
launch, it's been left empty.  We will have limited gravity but we won't
count on it, so everything has to be kept fastened down.  There's a small
toilet with some privacy.  There's a fold-out food locker and a little
trash receptacle that doesn't need gravity to seal.  There's a filter that
removes any bits of food or hair so they can't just float around."

   Shan-dra said, "Sounds wonderful.  You're sure we're not building a
yacht?"

   I laughed.  "No, just making it a more realistic test.  Suppose the
garbage bin doesn't work and it goes all over the place?  Need to know
that."

   We completed the preparations that afternoon and then we agreed to go to
our separate flats and meet in the morning.

   First thing in the morning, I went to the flight readiness area where a
more powerful version of the house system prepared me for the launch.  I
was given a medical check, which fortunately ignored the tendrils growing
in my abdomen, and given the OK.  The system gave me some shots for nausea
just in case.  I was given an enema to prevent accidents if my body didn't
like the strain of launching such a small ship.  The system checked my
hydration levels and gave me a container of a sports drink to top me off.

   Shan-dra met me in what the Glapis called "The Purple Room," which is a
small suite adjacent to the launch tube.  She had been similarly checked
and prepared.  I was disappointed that she was wearing the standard and
somewhat modest flight clothing regulations, regulations.

   We met with the Earth and Glapi mission directors briefly.  John, the
Earth director, would have final say on mission decisions because he knew
more about testing transdrive engines.  Hun-lir, the Glapi director would
keep everything working on the ground and keep Glapi flight control
informed since she knew the local layout.  Other than testing the
transdrive once outside the atmosphere, this was routine travel.  We sat
through the usual "I know you can do it" speeches, and then we headed to
the ship.

   "Ready?" I asked.

   "Ready for anything."

   I leaned over and we kissed.

   There's no exact countdown needed for these ships because they aren't
tethered down and they aren't fueled at the last minute or anything like
that.  Spaceflight doesn't occur very often for any individual human or
Glapi, but it's not particularly remarkable either.  So when we got to the
ship, we sat down, strapped ourselves in, and began the launch sequence.  I
felt a sudden pressure as the gravity nullifier threw us through the
atmosphere, and then we could see stars.

   The space controller asked, "Everything all right?"

   I checked some instruments and said, "Mostly.  A few parts loosened and
we lost one of the matter converters."

   We worked with the ground team for the project to check all the
instruments and report back.  We would have 4 hours where we would be out
of touch and while the information would be logged, we wanted to know if we
needed to make any changes before going into the dark for a while.  After
two hours of checks, it was time to activate the transdrive.

   "You may do the honors".

   Shan-dra pushed a big exaggerated button we had rigged to amuse
ourselves.  We felt nothing, but the energy use levels on the guidance
computers skyrocketed and the stars moved by much faster.  I examined the
instruments.

   "It's working!"

   Shan-dra leaned over and kissed me.  I was surprised.

   We ate a snack to calm down our stomachs and then used the toilet it's
hard not to be nervous when you do something with a little risk.  We
monitored the instruments, made a final check-in with flight control, and
then shut the drive off to drift around the moon.

   I said, "Alone at last."

   Shan-dra said, "What shall we do?" and then pushed a button she had
rigged.  The limited artificial gravity stopped and we became weightless.
She unbuckled, and moved herself behind my seat.  "Surviving danger makes
me horny." She handed me a thin belt.  "Take your clothes off and put this
on please...it's time to join the ten million kilometer high club."

   I was a little shocked at first but then I went along with it.  Since we
were in the moon's shadow and even when we came back in range there would
only be audio, it seemed safe enough.  I fastened my clothes to my chair so
they wouldn't drift off and put the belt around my waist.

   "The belt will give you limited control when you want it so you don't
have to keep pushing off surfaces to stay away from them.  Try it out a
little so you can get used to it".

   I floated out into the wider hold area and found that the belt gave me
significant inertia in the direction of any walls.  Shan-dra came up behind
me, held onto me, and said, "Relax, here's some lubricant," and then
inserted a small nozzle and squirted something slippery through my anus.

   I asked, "Aren't bits of fluids going to be a problem?"

   "No, the filters will keep that under control.  And the general system
knows what belongs and what doesn't it will keep the ship reasonably clean
no matter what we do."

   I could hardly believe this was happening.  I wasn't surprised that she
would think up something like this but I had thought we'd have to wait
until evening to take care of our needs.

   Shan-dra came up behind me and put her arms around my chest.  Then she
reached back with one arm, and I felt a slight gravity pull towards each
other.  Earth had to get this technology.

   "Look at the stars," she said.  "Trillions of sentient beings are out
there right now doing whatever gets them off." She started kissing my neck
that was new.  "Inserting
something...spawning...merging...dividing...getting that good feeling that
comes only when your body thinks it's reproducing." I could feel her
erection brushing my backside.  "I want to feel like we're making a baby."
She grabbed my already-hard penis and stroked.  Do you want to feel like
we're making a baby?"

   "Yes...." I turned around and we held each other tightly.  "I really
enjoy our time together...." We kissed hungrily.  "The sex is great but I
like just spending time with you...I feel like I love you." We kissed more
and rubbed our hands over each other's buttocks.

   She said, "It hasn't been long, but I feel as if I love you too." She
kissed me and squeezed my ass.

   I told her, "You're such a great lover kind, creative...and your ass
drives me out of my mind."

   "I like your ass too.  So toned...masculine...hot.  And your hole feels
so good..." She ground against me.  "Really good...."

   I spread my legs open, still facing her.  "I want you to feel good...I
want to feel like we're breeding...make love to me Shan-dra!"

   Shan-dra began to push her organ into me.  I relaxed easily because I
was used to this now and because I knew she wouldn't hurt me.  Once my
sphincters opened and the head was lodged, she hugged me to her and kissed
me as she finished entering me.  I pulled on her ass trying to get her
further inside me.

   I inhaled as my body tried to adjust.  "Huuuuh." Shan-dra smiled and
sighed with the momentary relief from her urge to penetrate me.  I saw the
stars moving past as we rotated relative to the ship.  She kissed me and
said, "Relax...that's it..." and slowly began to move inside me.  I felt
the hold of the belts pushing back.  It was like a bed pushing back except
that we were floating around.

   I moaned almost without sound.  "Hhhhhhhhhh hhhhhhhhhhh hhhhhhhhhh".

   "So good to be back inside you.  Hmmmmm...hmmmmm...hmmmmm."

   We slowly rotated as she gently slid in and out.  I looked over her
shoulder and watched the stars going by.  I said, "All those beautiful
stars, with uncounted beings, and I'd rather be with you than any of them."

   "That's so sweet.  Ohhhhhhhh.  Hmmmmm...so good."

   "I feel so full...uhhhhhh...uhhhhh...stretching me...ahhhhhh...so
open...."

   Shan-dra said, "We're not taking...uhhhhh...full advantage of the low
gravity." While staying inside me, she pulled me up effortlessly so that my
legs were straddling her as she stayed lying flat.  "Check this out." She
seized my hips and began to move my whole body back and forth on her organ.
It was new and exciting and I was overwhelmed with the intensity.  I cried
out, "Ohhhhh, yes, yes, slide me on it, slide me on it!"

   She rearranged my legs almost against her shoulders and then slowly
rotated me all the way around a few times while she stayed in place and
pushed in and out.  I felt my sphincters struggle to accommodate the
changing thickness of her cross-section.  "Whooooo...ah ah huh huh."

   We stretched out facing each other again.  She brushed my belt and our
feet stuck on what was normally the top of the hold.  We moved as if we
were doing it standing up on the ground.  Sex on the ceiling!  I grabbed
her ass and felt her flexing with each stroke.  We kissed hard.  "Mmmmmmm
uhhhhhh mmmmmmm."

   Shan-dra said, "I want to get you from behind now," unclamped me and
turned me around in the air, keeping me skewered on her organ the whole
time.  She hugged me from behind and eagerly pushed in and out.  I
felt...loved...needed...fulfilled.  So full.  I was being stretched out
over her organ...in my anus...and it felt so right.

   I said, "More, do it more!  Unnnnghhgh!"

   She was grunting in my ears with each in stroke as she struggled to push
harder.  "Uhh, uhh, uhh...." I thought about her glutes, moving her hips
relentlessly...so good to be mating with a partner with a nice and strong
butt.  I yelled, "Work that sexy ass harder!" She pumped with renewed
vigor. I rubbed my own erection and vocalized my pleasure, "ah ah uhuh,
that's it...ahhhhhh."

   We slowed down our pace to rest a little.

   "I like having you up my ass so much...so good...is it good for you
too?"

   "Huh uh huh...ass...huh...is always good...the
squeezing...warmth...slickness...uh uh uh...of the tight hole...seeing the
buns, feeling them...uh uh uh...knowing I'm mating...so glad you're letting
me inside you."

   I was very glad to know that having my hole stretched out was bringing
her pleasure.  "I love knowing you're inside me...ah ah ah...penetrating
me...stuffing me...ah ah ah...you're so hard...sliding..." I squeezed my
buttocks together to tighten around her.

   She like the surprise, "Aaaaaaaaaah!  Squeeze me!  You're going to make
me come!"

   "I want you to come." I began rhythmically clenching on her in strokes
and relaxing on her out strokes.

   "So tight!  Aaaaahhhhh ahhhhhhhh aaaaaaahhhhhhhhh!"

   I had made her give in and come.  I lost control as the hormones took
effect and only my sphincters kept clenching.  I howled "ahhhhhhhhh
ahhhhhhhh ahhhhhhhhhh!" along with her as she instinctively forced her
organ all the way in with each pulse.  My load shot across the hold in the
low gravity and then into no gravity and hit the hull with splashing
sounds.

   Shan-dra said, "That was great...felt so good I couldn't hold back any
longer...."

   I asked.  "Feel better now?"

   "Uh huh.  We better chase down the bigger clumps you shot."

   We got some cloths and collected most of my spurts the cleaning and
filtering system would take care of the rest.

   Shan-dra said, "Look at this!"

   There were dark dots in my semen.

   "Does that mean...?"

   "Yes.  My body will have sensed the difference while I was inside
you...in a day or two I'm going to want the return...really badly...let's
make it special."

   "Yes."

   I was already thinking about how good it was going to feel to come
inside a female again...to feel even more like I was mating....

   She said, "You'll really like it.  So will I.  Now let's get back to
work."

   I used the toilet and squeezed out her excess juices, and then we turned
the gravity back on and got dressed.

   The landing was uneventful.  The only difference between our flight and
a normal business travel flight is that we did a lot of measurements and
our trip was a little more dangerous.  We were checked out by medical
technicians to make sure the transdrive implementation didn't have any
major effect on our bodies.  They didn't detect anything out of the
ordinary.

   The next day we met with the project team and explained our trip,
leaving out a few details about the biology experiments but discussing all
of the physics and engineering.  The analysis team would take a week or two
to go through all the recorder data and figure out what it meant.  We would
then adjust the ship in preparation for the test pilots to really put it
through its paces.  We could work at a more leisurely pace while the data
was being sorted out.  For the first day we got to rest separately so we
could really rest.

   I couldn't wait, but I resisted the urge to touch myself.  It had been
so long since I had penetrated a woman that I could think of little else.
So much relief...it would feel so good...pushing against buttocks while my
penis was squeezed and massaged...all the moaning...Shan-dra...I wanted her
so badly.  That ass.  So round and yet so tight...my body was really going
to reward me for this....  I rubbed myself just a little then managed to
stop and fall asleep.

   Shan-dra showed up at work wearing a gold one-piece outfit with a
cinched waist and a tight back area that lifted and defined her crack.  The
front pouch-like flap was in a contrasting silver color.  The top was low
cut and gave her breasts some lift she was doing what she could with what
she had.  I said, "You look beautiful today!"

   "Good.  I'm feeling totally receptive...I'm ready inside right now. 
This is going to be so good...." She turned around and pressed her derriere
against me.  "You want this?"

   I couldn't help myself and I grabbed her hips and ground back.  "Yes.  I
need you." I let go in case someone walked in.

   She said, "I need you too...I crave the stretching...I want my cells
back!"

   I was dripping slightly.  "Can we actually get work done today?"

   Shan-dra said, "Yes, but let's work separately for a while.  I'm going
to see how Tun-gir and Susan are doing with the gravity control." Then she
slowly wiggled out of the room while stared transfixed and my mouth opened.

   I puttered at tasks to look busy and worked on paperwork to keep my mind
occupied.  I wanted sex.  I wondered how the return slot differed from a
human vagina.  I was sure it would feel good though.  Really good.  After
all, it had evolved to be enough of a reward that a Glapi male would
cooperate with a week of receptive anal sex to get into it. 
Paperwork...only paperwork...no tools, too dangerous.

   When it was time to go to her flat for the big event, Shan-dra returned
to our work area.  She said, "I'm going to take you home and drain
you...follow me," and left.  I turned away from the data I was compiling
and followed.

   I looked down a little and was stunned again. 
Firm...round...wiggling...I was going in there tonight.  I panted.  It had
been so long.  I knew I had never been inside a woman this hot.  It was
going to be so good.  I nearly stumbled as I stared hard at the flexing
gold material being moved around by the tight glutes beneath it.  I was
partially erect and dripping a bit.

   I looked up to figure out some steps and noticed Glapis looking on with
amusement...and one member of the Earth team passed us.  Had she known what
was going on?  I felt some worry but then I looked down again and crowded
it out of my mind.  I thought I could love Shan-dra someday but right now
this was all about her nice ass making me want to push my penis into her
and I knew it.

   When we reached her flat we used the bathrooms to freshen up.  The house
system was aware of the change she must have told it right away and instead
of cleaning me out and lubing me it just asked if I needed anything and
then let me use the toilet.  We didn't bother putting our clothes back on.
We couldn't stand to sit through a meal, so we consumed a Glapi sports
drink that smelled like flowers and had at least some normal nutrients in
it.

   Shan-dra put her arms around me and we kissed for a few minutes.  I took
her left nipple into my mouth and sucked hard, causing her to breathe in
gasps.

   She panted, "Oh yes, I'm swelling, ohhhhhhhh, rub meeeeeeeeee!"

   I looked down to see that her breasts were expanding, and her normally
bluish nipples were reddening.  "What's happening?"

   "Wanted to surprise you...arousal when ready for the return causes Glapi
breasts to display...."

   I stopped sucking and just held her so she could speak coherently.

   "The stretching feels really good and the breasts get very sensitive."

   I couldn't resist and started licking her right nipple to give her
breasts equal time.

   "Ohhhhhhh...ahhhhh...the novelty helps the male perform more...."

   I sucked gently.

   "Mmmmmmmmm...my body wants to get as much of your juices as possible in
the one night we have...."

   I sucked hard while tugging on her penis with my hand.

   She said, "Ahhhhh...ungggghhhhh....ggghhhhhhhh."

   I reached under to explore her return slot.  It was moist and hairless.
Watching her face to make sure I wasn't hurting her, I gave her one long
kiss while I gradually slipped a finger into her.

   "Owwwwww!" Her face contorted with discomfort.

   "Are you ok?"

   "Mmmmmmmmm ok...go slowly at first...haven't completed the cycle in a
while...this is going to hurt but it's going to feel so good...."

   "I don't want to hurt you."

   "It's ok...it's a pleasure pain at first and then it feels better than
anything...I want you inside me."

   She turned and headed for the bedroom.  I stared at her ass and could
hardly believe I was about to penetrate her.  I momentarily reflected on
other women I had mounted and knew she was going to be the best.  She stood
at the end of the bed facing me in the soft light and we kissed and stroked
each other.

   She said, "Put your hands on my ass."

   I complied.  I dripped on the floor.

   "I'm going to present my rump to you tonight, but I want all the semen
you can produce...my body rewards me for collecting it...and we need to go
slowly at first, so we're going to do it face to face first and then you
can ride my ass and give me even more.  Come over here so I can get you
inside me and milk you."

   "Milk me?"

   She just smiled and lay back on the bed with her legs apart.  Her
breasts were no match for Susan's but they were very nice and helped me
handle not immediately getting the ass I craved.  I got on top of her with
some weight on my arms and some on her.

   She said, "Go ahead...gently!"

   I fisted my hard penis and slowly crammed it into the slot while trying
to kiss away the pain.

   She panted and yelped, "Huhhhhh huhhhhh owwwww huhhhhh huhhhhh owwwwww."

   I paused.  The slot was resisting but I could feel it starting to relax
and let me in.

   She started crying and tearing up.  "Mmmmhoohoo, mmmmhoohoo,
mmmmhoohoo...don't stop mmmmhoohoo mmmmhoohoo keep pushing."

   Her face was twisted in pain.  I felt guilty but I kept going.  I felt
very powerful and manly as she cried while I worked to penetrate her.  She
struggled and squirmed but also dug her fingers hard into my buttocks and
tried to pull me in.  I panted and tried not to show the pleasure I was
feeling.

   She kept making noise, "Uh hoo hoo, uhhhhhhhhh, aaaaaaaaaa."

   Then her outer muscles gave up and I slid smoothly all the way in.  The
slot didn't feel as tight as a vagina inside but it was stretched around me
and it felt good.  The crying stopped and she exhaled with relief.

   I asked, "Are you ok?"

   "Yes...give me a moment...ok...you can move now."

   I moved my hips tentatively.  She breathed hard but didn't look pained.
We kissed and gently ground together.  My stomach brushing against her
erect penis seemed to give her pleasure.

   "That's it...do your stuff...feel good?"

   I said, "Feels great...how about you?"

   "A little sore but that's normal if you haven't had a return in a
while...the rubbing...fullness...pushing...feels wonderful.  Uhhhhhhhh."
She grabbed at me.

   "How do we come?"

   "You let go and ejaculate when it's time.  My body will sense the
returning material and reward me with my orgasm.  Remember, our
bodies...unnnhhh unhhhhh...want to make a baby...the pleasure is a reward
for giving in to the urge to reproduce...uhhhh uhhhhhhh...for the
return...my body wants to get back as much of what we worked to produce as
possible...your body wants to expel semen into a woman...."

   Her sexy talk was turning me on even more.  "Yes, I want to give you all
of it...uhhhhh....ahhhhhh...."

   "Stop pumping and hold still all the way inside me...."

   Reluctantly, I stopped.  At least it was on the in stroke.

   Shan-dra grabbed my ass, pulled me tightly against her, and didn't let
me go.

   She said, "A tight strong healthy butt like yours should be
reproduced...I'm going to take your juices and your sperm with them...."

   As I held still, I started to feel squeezing.  She looked into my eyes
and said, "Like that?"

   "Yyyyess...oh...oh."

   Then I felt suction as her slot muscles contracted in ring-waves as if
stroking me.  She was smiling.

   "How about now?"

   I could hardly speak, it felt so good.  "Uhhhhhhh Haaaaa...This is
incredible."

   "Try not to pump...that makes it harder to do."

   I relaxed.  We kissed.  I looked down and looked at her breasts.  I
licked at her left nipple and then sucked on it.  I reached down and gently
stroked her penis.

   She said, "That feels good.  You're so considerate."

   I resisted the urge to hump as her slot continued to squeeze and suck
me. It felt so good...so right...I was seeing breasts, hugging and kissing
a beautiful woman, and I was going to come inside her.

   The house system mechanism hummed a little, but I couldn't look up
enough to see what it was doing.  She said, "Spread your legs a little."

   I was in a fog of pleasure but managed to open.  Then I felt something
slide into my anus!  I realized it was her finger.  The sucking continued
and prevented any thought of resistance despite the surprise.

   "Relax.  I'm going to massage your prostate so it gets excited and full.
Then you're going to give me all the semen you can...first it will trickle
out...then it will spray out when you come...that's how Glapi women milk
men."

   "Yes...hnnnnnnuuuhhhh...huuuuuhh....so intense...."

   "That's it...just relax...."

   We stopped kissing because we were too far gone.

   The relentless stimulation was making me feel pleasure and nothing else.
My penis throbbed as small amounts of fluid ran through it.  She was
sucking me, stroking me, and massaging my prostate.  I couldn't take it
anymore.  "I'm going to come...uhhhhhhh...aaaaaaaaa...ok?"

   She took her finger out of me and I was able to hold back a little.  Her
return slot continued stroking and sucking.  She threw some kind of glove
away and put both arms around me.  "Go ahead...thrust now!  Make yourself
come!  Force your seed into me!"

   The waves of squeezing stopped.  The suction feeling continued.  I
looked down at her breasts for final inspiration and started pounding away
on her.

   Then I started to feel funny.  My consciousness was replaced with primal
ecstasy.  We were grunting in unison with every thrust, "Oh oh ah ah uh
uh." And then I howled and unleashed a flood,
"Aaaaaaaaaaaaaahhhhhhhhhhhhhh!" Shan-dra began coming under me,
"Eeeeeeeeeeeeeeeeeeee" and then she stopped breathing for a few seconds and
our bodies thrashed together trying to transfer every drop all the way
inside.  Her slot greedily sucked it all up as fast as I spurted it out.  I
collapsed on top of her unable to move.

   Shan-dra rubbed my back and said, "That's it, let it all out..." as her
slot sucked the last drops out of me.

   After about a minute I could think again and we kissed.  I felt a wet
spot where she had ejaculated during her orgasm.

   I said, "I'm drained.  You made me feel so good...."

   "It was good for me too.  I needed that so much.  And I wanted it from
you so much."

   We kissed some more.  I slid out but there was no gush or wet spot.  Her
body kept everything.

   I asked, "Now what?"

   "Let's freshen up, have something to drink, and then when we've
recuperated a little, we'll copulate again."

   I used the bathroom and then we had more of the Glapi sports drink.  I
noticed that Shan-dra's breast swelling had reduced some but she had not
gone back to normal size.

   "Have to keep you well hydrated so you stay full for me."

   We sat on the couch and cuddled while we sipped the drinks.

   I said, "Do you think there's more to our relationship than our craving
for ass flesh?"

   Shan-dra said, "Yes...I think...we're going to fall in love...it's hard
to separate though."

   I asked, "What will we do?"

   "For tonight, we mate for pure pleasure and relief...but I know it feels
even better just because we're doing it with each other.  We can stay
together since neither of our planets has rules against that.  We could
discretely have my biologist friends run some tests...at least to make sure
there are no long-term health problems from intimacy.  It's early to talk
about, but just to share what I know, actual reproduction would be
iffy...it might be possible though...need to do a lot of research before
I'd stop using birth control...."

   I told her, "I'm ok with the way things are now.  I just want to be with
you...talking, doing stuff together...we've been having a good time out of
bed too."

   She said, "Yes, I agree.  Are you sure you'll be ok with a woman who has
a penis once the novelty wears off?"

   "Yes, I think so.  You're so feminine...I know you're not male.  You
have breasts and wide hips...smooth skin...an opening like a vagina...and
you can get pregnant and give birth!"

   "I would be the penetrating partner in most of our sex...on top of you
and stuffing my organ into your anus...."

   "It's intense...addictive...nice to be the one courted for a
change...feels so good to know I'm making you feel successful when I let
you mount me...and I come so hard...I want to keep doing it...I need to
keep feeling you inside me."

   "We'll have to deal with my cycles like all Glapis I'm receptive to
certain activities at certain times while it seems like Earthlings are
always ready for anything other than a short renewal period for the
female."

   I realized she had been thinking this out.  "I'm ok with that.  My
biology makes me get the greatest satisfaction out of entering you, but it
all feels good, and as long as I'm with you and getting off with you I'll
be happy."

   She kissed me hard.  "Me too."

   We both started to become erect.  I rubbed her breasts and they became
fuller again.

   Shan-dra said, "It's time for me to give you what you've been waiting
for...you don't have to be too gentle since I'm stretched out now...watch
me and see what you're going to get...."

   She walked back towards the bedroom while I watched and shivered from
sheer nervous energy.  I knew there were no changes of plan coming I was
about to get on that perfect bottom.  I felt short of breath but I stood up
and followed, first staring and then when we passed through the doorway
hugging her from behind and nuzzling her neck.

   Shan-dra gently pulled away from me, crawled onto the bed, and presented
herself on all fours with her legs wide apart.  I hardened as much as I
ever do and crawled forward to get behind her.  Her voice was full of lust
as she said, "Take me," and put her head down on her arms and grabbed a
pillow.  I put my hands on her hips to test our alignment then ran my hands
over her ass and kneaded her toned yet yielding buns to make myself as hard
and excited as possible.  She said, "Take me!" I put one hand on her hip
and guided myself part of the way in with the other.  Then I grabbed her
hips and slid all the way in.  She inhaled sharply and made a gurgling
noise as she squirmed but I held her firmly against my thighs until I felt
her body relax and accept my intrusion.

   We sighed with relief and then the urgency returned.  I began to thrust
in and out of her.  I looked down and could hardly believe my penis was
inside a woman with an ass like hers...flaring out from her waist...so
round at the bottom...so smooth...I knew that most men never see an ass
like hers up close and I felt so lucky.  I paused, draped myself over her
back, and rubbed her swollen breasts.  Then I kissed the side of her face.
I reared back up and pumped her while she softly moaned each time I pushed
in, "ooouh, ooouh, ooouh."

   I knew our orgasms were linked out of biological necessity her orgasm
would be triggered by mine and would intensify with the amount of semen
collected but I reached down and gripped her erect penis to see if she
liked that.

   She vocalized, "Mmmmmmmmm...."

   I hung onto her by putting one hand across the front of her thighs and
started moving the other up and down.  Down on the in stroke to pull us
together, then back up her shaft on the out stroke.

   I asked her, "Feel good?" and she said only, "Ngggaaa aaah aaah!"

   I felt suction and pushed all the way in.  As I continued to stroke her
penis, her return slot sucked lightly on mine.

   She said, "Relax a little...as long as you're not moving much I can do
that...ahhhh ummmmm."

   I said, "Oh...that feels so good.  You're going to suck me dry, aren't
you?"

   "That's the idea.  I'm going to take back my cells...it feels really
good when they come back...oh, aaammmmm mmmmmmm."

   I looked down and had an overwhelming urge to move again.  "I need
to...uh uh uh."

   "Ok...uh uh uh...."

   "I can't stop...I don't want this to end...so good...uh uh uh." I tried
to hold back.

   "It's ok...hmmmmmmmm...aaaaaaaaa...think about my
ass...wiggling...making you think of sex...and here you are...uh uh uh...on
my ass...blasting your semen between these cheeks is going to feel so
good...."

   She was pushing me over the edge.  I could only grunt, "uhhhhh ohhhhh
uhhhhhhh." I grabbed her hips hard and pumped quickly.

   Shan-dra yelled, "Yes, oh, yes, give it to me!  Give it to meeeeeeeee!"

   Her slot started sucking on me hard.  That was it. 
"Aaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhhh!  Aaaaaaaaaaaaahhhhhhhhhh! 
Aaaaaaaaaaaaahhhhhhhhhh!" Jet after jet came out as I clutched at her hips
and pushed against her to get it all deeply inside.

   Then she came with a shriek, "Eeeeeeeeeeeeeeeeeeeeeeeeeee
eeeeeeeeeeeeeeeeeeee aaaaaaa eeeeeeeeeeeeeeee!" and went limp as I worked
the last of my juices into her.  She fell forward and made no more noises
but I could see she was breathing.

   She murmured, "I-Uhm ok" and went limp again.

   I withdrew so I could make sure she was ok.  No wet spot, nothing
dripped out.  She fell forward and I heard deep sighing.  I crawled forward
and pushed her onto her side.  There was a trail of her ejaculation on the
bed.  Her face was contorted in pleasure.  Her breasts were returning to
normal.  I realized that she was experiencing the prolonged orgasmic state
she had said would happen with a good return.  I turned her onto her back
and kissed her softly as she began returning to consciousness.  She looked
up at me and smiled.

   She said, "Ohhhhh...I feel wonderful," and pulled me down to kiss me.

   "You're ok?"

   "Very ok...mmmmmmmmmmmm."

   I asked, "What do we do next?"

   Shan-dra said, "Now we'll sleep.  In a few days we can start the cycle
over...it's faster once our bodies recognize each other but I will still
need to enter you several times before each return."

   I said, "I like mating with you.  You're the best lover I have ever had
and as long as one of us is deep inside the other it's all good."

   She said, "I agree.  It feels great to hold you and be inside you but
you do an excellent job of the return really made me appreciate being a
woman and you gave me so much of your fluids that I had my strongest orgasm
ever, giving or receiving."

   I put my arms around her and squeezed her tightly to me.  We kissed
lightly as we drifted off to sleep.

   The next day we arrived to work on planning the serious test flights.  I
fed the data from our test flight into the computer and had it extrapolate
the safety margins and absolute limits of the spacecraft's performance.  We
would be building the test ships to push the design far enough that some of
the test ships would fail.  Most of the time the pilots can use escape
capsules and survive long enough to be rescued, so it's not as dangerous as
it seems.

   Shan-dra was dressed to look sexy like she always does, in a
form-fitting teal jumpsuit.  I was wearing the outfit that her house system
had replicated for me it was visually appealing and designed to give me an
attractive rear view.  Her cycles affected her desires far more than
anything an Earthling experiences.  Meanwhile I was horny and looked
forward to masturbating later.

   I looked up and told her, "I'm so happy to be with you."

   She said, "Me too."

   I said, "I know we can't do much tonight...so let's go see a show." I
knew I could still take care of myself afterwards.

   Shan-dra said, "Ok, how about that one with the acrobats that work
without gravity gear?"

   I said, "I'd like to work without gravity gear."

   Shan-dra giggled.  "Give me at least a day or two to get ready again. 
Then we'll put on a show just for the two of us."

   We heard footsteps and went back to professional talk.  The directors of
the Earth and Glapi teams arrived together.

   I said, "John, Hun-lir, how nice to see you!"

   John said, "We need to talk about what you two have been doing."

   "Sure, I'll give you a quick tour and bring you up to speed on our
progress."

   Shan-dra said, "We're going to have the pilots in soon to get their
input on test ship features."

   Hun-lir said, "John and I are both very pleased with the scientific work
the project is accomplishing and really appreciate how well you've learned
to get results together in such a short time.  That's not what we're here
about though."

   Shan-dra and I looked at each other as if to say, "They know."

   John said, "We know you two have been having sex.  It seems a little
perverted to me but there's no rule against it.

   I held Shan-dra's hand.

   Hun-lir said, "We're not here to reprimand you.  We know that you've
successfully completed an entire cycle, and we need to get a lot of
information from you about that in a hurry." She had a look of concern.

   John said, "There's a problem with the Earth team's resistance to
certain microbes present here on Glapi.  We've got two team members in the
freezer to prove it.  We've been over it with the Glapi doctors and our
medical team and concluded that we're all going to need to acquire immunity
or we will die sooner or later.  By the time this could possibly get to
Earth, we expect to have isolated it, identified it, and produced a vaccine
or cure for it, but that takes a while to do.  Meanwhile we have to protect
the Earth people here on Glapi.  The bio team thinks that the necessary
immunity can be transferred along with...normal sexual fluids."

   Hun-lir said, "To get to the point, the entire Earth team on Glapi is
going to need to have sex with Glapis to gain immunity to the local
microbes.  We think you two would make an ideal team to design this project
because you've had sex of all kinds and you're almost certainly both
immune. We want you to guide the cure and make it as easy as possible."

   Shan-dra and I looked at each other in disbelief.

   John said, "We know there is a taboo against anal intercourse on Earth,
but the bio team says it occurs pretty frequently and that at least half
the population has tried it in one form or another, and about twenty
percent do it on a regular basis.  We think the issue is cultural and that
the body itself evolved to be able to receive a penis in the anus without
damage.  It is likely to even feel good since otherwise those twenty
percent would stop.  If I may ask, how was it for you?"

   I said, "I'm a little embarrassed...nobody ever talks about doing
this...straight men on Earth don't receive, and women aren't even capable
of penetrating someone...."

   John said, "I know we're putting you on the spot but this is important."

   Shan-dra, always more forward than me, said, "He really enjoyed
it...kept wanting to do it again...me too."

   I said, "It's intense.  I understand now why women are willing to let
men enter them.  I was sore at first but once I learned to relax it was
really good."

   Shan-dra said, "I seduced him.  I wanted to do him right when we met. 
At first it was idea of the novelty of an Earth man...then the more I saw
his ass the more I wanted to see it up close...really close.  I knew he
liked my body and I knew he was staring whenever my back was turned...it
helped that he's the kind of Earth man who likes the tush more than the
milk glands.  John, that's how attraction works here it feels exciting to
look at the buttocks so it's difficult to stop, and the more you look, the
more you feel an urge to mate.  So I kept bending over and walking around
and facing away from him so he would admire my derriere and want to get to
know me better.  When he went to my flat we both had some kind of sex in
mind.  I explained to him how it works here and lust for my buns made sure
he would cooperate.  It feels really good to convince a man to let you have
him the body rewards the effort with pleasure and a temporary feeling of
relief."

   This was new to me, but flattering.  "I couldn't help myself.  I was
nervous and afraid, but I was very turned on and wanted to get off any way
I could.  She was very gentle and persuasive and kept me comfortable as she
took me.  My body tried to panic at the unfamiliar intrusion but I was very
aroused and soon managed to relax as she moved her penis back and forth
inside me.  The Glapi orgasm is simultaneous and is triggered in the male
by hormones in the female's semen."

   Hun-lir said, "Sounds like it's very possible to get all of the Earth
men to do it then.  What about the Earth women?"

   John explained, "The bio team says that the women will acquire the
immunity but the plaque won't form right.  They'll just pass anything that
does form.  The tough part there is that while the Earth women are used to
having a sex partner enter their bodies, most Glapi women are not attracted
to other women.  The Earth women are going to have to just deal with having
sex with another woman, but I'm hoping we can recruit some Glapi lesbians."

   Hun-lir said, "That shouldn't be a problem.  We're more open about sex
here and Glapis don't hide their desires."

   John said, "So how about it?  Will you design a process for getting
everyone to cooperate with the necessary sex?"

   I said, "Yes, should be very interesting."

   Shan-dra said, "I'm getting hard just thinking about it."

   John said, "Good.  Here are the authorizations for any supplies and
assistance you may need."

   The meeting adjourned and the directors left.  Shan-dra turned towards
me and said, "Wow!  I'm sorry about the two of your people who didn't make
it, but working on this cure is going to be exciting!"

   "Yes, too bad but we can't change that now."

   "How many Earth people are here anyway?"

   "There are 100 besides the two in the cooler, evenly divided between
males and females.  All straight since with so small a number any gays
would likely be lonely and frustrated."

   Shan-dra pointed out, "How ironic that the straight men will be getting
it up the ass from females while the straight women will get it up the ass
from lesbians.  Nobody's going to feel normal."

   "True, but it's going to be our responsibility to make sure everyone
feels comfortable, and I think where possible we should get them to enjoy
it."

   "Yes, let's make as many of them as possible enjoy it." She smiled
mischievously.  "I want them to get off on it...to remember it as some of
the most dirty, erotic, intense sex of their lives."

   "Even better if they do it again sometime.  They don't have to give up
Earth-style sex but I hope they expand their horizons."

   "And stretch their asses!"

   We both laughed.

   Shan-dra asked, "How do you think we should do this?"

   "I think for starters, we should get everyone over the hurdle of the
taboos they have to pretend to observe.  Do you think the Glapi females
we'll need help from will feel funny mating with Earth people?"

   "No.  Everyone likes to ejaculate into someone else's body, and we're
very open to exploration around here."

   "I think for the Earth people we should pretend that it's going to be
done very clinically and purely to save their lives.  That way they won't
hesitate for fear of being judged.  Then we make the actual coupling as
pleasant as the individual will allow it to be."

   Shan-dra liked the idea.  "Let's create a suite of private rooms with
comfortable but not overly-romantic settings.  Bathroom inside.  Hot tub
inside for relaxation.  Light snacks to ease nervous stomachs.  Assistant
machinery like the one I have in my flat."

   "Why not rent a section of a hotel?"

   "We'll say it's hard to control the environment.  Because, while
discretion is going to be assured in most respects, you and I are going to
watch!"

   "Is that ethical?"

   "Yes.  We need for them to think they're in complete privacy so they can
relax and cooperate and even enjoy it, but we have to know that they went
through with it."

   I didn't argue that one because I knew I wanted to watch and she knew I
wanted to watch.

   "Ok then, we'll watch."

   "Good, my friend Lin-kam in security will help us get away with it."

   "Let's give the patients numbered tags that they're supposed to bring so
they feel anonymous." I was getting into it.

   "An excellent idea!" She looked evil.

   I added, "Then the receptionist will give them further instructions
based on the tag and not call them by name."

   Shan-dra asked, "How do we match the recipients up with lucky--I
mean--donors?"

   I suggested, "Interviews?  A social function like a dance?  A lottery?"
Speed-dating?"

   She said, "How about a lineup of butts and you choose whichever one
makes you want to bend over the most?"

   "That would work, but I think some interaction to determine basic
chemistry beyond that will make it better."

   Shan-dra said, "I think both partners should have some choice, but every
Earthling must choose someone soon and let's try to make it so that Glapi
volunteers have a reasonable chance of getting laid for their
participation."

   "I agree, but how do we both introduce the groups and provide for
shame-free socializing as the first ones pair off?"

   "Maybe we can have your Earth director reveal his choice publicly.  That
might make everyone else more comfortable about their own choices."

   I pointed out, "We'll have to deal with shyness and awkwardness too it's
going to be difficult to approach someone knowing she wants to pleasure
herself by thrusting in your rectum."

   "No problem there Glapi women are open and forward, and it feels so good
to sink your penis into a man that we can count on them to be outgoing and
persuasive enough for everyone."

   I suggested, "How about masks for privacy?"

   "I think that would create the impression that there is something wrong
with what they're going to do."

   I had another thought.  "If we intend for this to be pleasurable, what
if some of them want to continue the cycle?  The intensity combined with
the injected hormones could give them a craving, and that could only be
satisfied by knowing who you copulated with."

   "Yes, let's give each pair a way to connect if they both want to
continue.  It would have to be done by having them notify a central
computer it could let them know if the other person also wants to continue.
It would be possible for any reasonably healthy Earthling who enjoyed it to
find another partner if necessary, but I doubt too many Glapi women will
turn down repeated sex with anyone with a decent ass it feels good...really
good...to ejaculate inside a man and it's not always easy to find someone
willing to let you."

   "We're going to have plenty of volunteers, aren't we?"

   "Definitely." She made some pelvic thrusts at the air and we both
laughed.

   I asked, "How can we get the construction done in a hurry?  We'll need
to start this in a day or two at most."

   "Construction computers can do this overnight with the right
authorization.  Here's the console." She entered some codes.  "How about
you handle the room design and I'll work on collecting the volunteers?"

   "Ok."

   I designed the rooms.  With about 100 humans to take care of, and
assuming 3 hours for comfortable intercourse including cleanup, with mating
around the clock, I first thought we would need 13 rooms.  I decided to
allow 16 to include a safety factor.  There was little real danger now that
doctors were monitoring everyone and keeping preventative drugs in their
systems at all times, but it's not good to take strong medicines for too
long, and I figured peace of mind for the Earth people was important too.
Then I thought about the difficulty of peeping on all those rooms and
rationalized that since there was no danger for a while, we could stretch
the process over several days to make it easier for everyone including
voyeurs.  So I designed the facility with 6 nice bedrooms including a
private lavatory, hot tub, multimedia panel, snack shelf, deluxe domestic
attendant system, fancy adjustable lighting, and of course, install points
for undetectable and easily-removed biodegradable cameras.  There was a
reception area out front with its own lavatory and some comfortable chairs.

   I heard Shan-dra on the communications system.  "Tun-Gir please.  Hi,
this is Shan-dra.  You won't believe the problem I have to solve...No, he's
not pregnant...you've heard about the infection problem with the Earth
people, right?  I need to recruit some volunteers in a hurry to have sex
with them to transfer immunity.  Can you contact your horniest friends? 
Good.  Thanks."

   She made another call.  "Hi Susan, this is Shan-dra.  I need your help.
Yes, exactly...we need lesbians too...Thanks."

   "Lur-nak, this is Shan-dra.  You want to get laid tonight?  Good.  I
have some Earthlings who need our immunity or they'll eventually die...yes,
that's for sure.  I'll send you more details."

   She called all of her friends and acquaintances and told them that they
could get laid and save lives in the process.  Presumably Susan would get
the Glapi part of the gravity control team involved.  Shan-dra said she
planned on having 200 volunteers available.

   I asked, "How do we deal with the ones who don't get chosen?"

   She said, "No big deal women get turned down all the time when
initiating the cycle it's not easy to persuade a man to let you mount him
because the entry can hurt at first and he also may simply not share the
attraction.  Women crave giving it more than men crave receiving it, at
least until the hormones prompt the return.  Men will feel nausea if they
don't complete the return they almost always cooperate unless the woman has
treated them very badly, in which case they might occasionally refuse.  But
women initiate the cycle by getting a man to open his legs, and we've
evolved to try to persuade the man if there's any reasonable chance.  So
sometimes women score and sometimes they don't."

   I asked, "Now how are we going to make the partner choices?"

   "Let's start by having a dance in the big conference center...it's a
great way to take everyone's minds off the crisis for a while, and we can
make it traditional slow dancing so they can try out holding each other for
chemistry.  We'll make it Glapi approaches Earthling so that the women can
be matched with our lesbians.  But we'll have some facilitators to allow
Earthlings to request an introduction to someone who catches their eye."

   I suggested, "Let's keep the facilitators to overcome any shyness, but
all we have to do to identify the preferences is to have subtle but
identifiable clothing.  How about all lesbians wear lace cravats?"

   "Great idea!  Now, the next method, we'll have speed-dating using the
small private conference rooms.  The Glapis will rotate.  Each will have 8
minutes to show why she should be selected as a partner and to have a
chance to decide if she's attracted too.  Afterwards each person will
indicate approval or disapproval of everyone interviewed.  We can match the
ones with less possible matches first and then fit in the ones with
multiple matching choices into the schedule around them."

   I told her, "You're really good at this.  I think we can put the first
two batches on a schedule for the rooms.  The remainder will be the most
hesitant.  So let's have them fill out a survey with some preferences, then
introduce them to potential partners, and have the Glapi immediately lead
them to a room that way they don't have too much time to think about it."

   "What should we include on the survey?"

   "How about asking if relatively large breasts will help?"

   "I didn't think of that Earth people find that to be a turn-on or a
comfort, good catch."

   I suggested, "Do you prefer yellow, black, blue, red, or orange hair?"

   "That's silly."

   "We're looking for comfort here.  Let's ask whether they prefer
heart-shaped or figure eight-shaped tight asses."

   "How about you?"

   I leered at her and answered, "Heart-shaped of course." She said,
"Awwwww" and hugged me.

   I asked, "How about partner size?  Some people might feel more in
control if they feel like they could get away at any time, but others might
prefer to feel like they can't get away once they start."

   "Good idea.  How about penis size?"

   "Do they vary much?"

   "No, not really, maybe by a few centimeters in length and a centimeter
in girth."

   "Let's just not bring that up then they're already worried about how big
it's going to be."

   Shan-dra said, "I think we can only plan for a few choices given the
timeframe and the limited number of participants."

   "You're right.  So let's ask them for breast size, ass shape, and
general build preferences and select potential partners that way."

   We worked to program the details into the construction and planning
computers for a few hours and then she activated the communicator. 
"Hun-lir, this is Shan-dra.  We're done planning.  We'd like to brief you
and John on the physical structure so the construction can start and then
while that's going on we'll explain the program.  Once you've approved, we
can hold a briefing for the Earth team, gather the Glapi volunteers while
that's going on, and then hold the Glapi briefing...good, see you in 30."

   We went back to controlling the construction system while we waited for
them to arrive.  We stopped to kiss from time to time.  I couldn't resist
and I put my hands on Shan-dra's derriere.

   She said, "Eager, aren't you?"

   "All this talk of sex for other people is making me horny."

   "You're in luck then all the stimulation is getting my body ready again
sooner."

   "Do you have to obey that biological schedule?"

   "Sort of.  It feels better if you do.  Cooperation has its rewards.  But
most stuff can be done at will.  After all, it's possible to masturbate at
all times.  It's just that females have an urge to give first and then
later receive.  We could put the parts together whenever we wanted and it
would still feel good."

   John and Hun-lir arrived.

   John asked, "So, have you gotten it all figured out?"

   I said, "Yes."

   Hun-lir said, "Well ok then, let's hear it."

   Shan-dra started.  "We've planned it so that there will be as much
physical and mental comfort as possible.  The construction systems are
building a facility with 6 private sound-proofed rooms that are kind of
like deluxe one-room flats.  Since we have time and want to emphasize
making it easy, we plan to have up to six pairs copulate at once over a
period of a week, but we'll start tonight.  First, we'll hold separate
briefings for the Earthlings and the Glapis this afternoon.  Then we'll
have some events to facilitate partner choice."

   I said, "We think partner choice is important because we want the
recipients to be aroused and to have some chemistry with the donor.  Even
though there's an Earth taboo, and it's being done for medical reasons, the
reality is that this is going to feel like sex to most of the participants.
Shan-dra was hard to resist because I was so attracted to her."

   John asked, "What will the events be?"

   Shan-dra explained, "Different personalities lend themselves to
different methods of partner choice.  We think it is best to start with the
least structured method and then work our way up to a final matching
method. So first we'll have a dance in the big auditorium room, where
social interaction and physical chemistry can work their normal magic. 
Let's make it a fancy and happy event so we can all forget about why we're
doing this.  Pairs that feel a mutual attraction can go down the hall,
Glapi donor leading of course, and use a room."

   I continued, "Next we'll hold an event like speed-dating.  We'll use the
small quiet rooms for some privacy and give each Earthling and each Glapi a
scoring device.  We'll rotate every eight minutes and rotate some in and
out of the process due to the limited amount of rooms.  The participants
can talk and interact in whatever way they like we think it will mostly be
the Glapi women trying to persuade the recipients to choose them.  The
Earth scoring device will allow selection of as many Glapis as are
acceptable as potential partners.  The Glapis will have to pick their
favorite 6 Earthlings otherwise some might just check all of them to
increase their chances of getting laid.  Then the pairs will be matched in
a way that creates the most possible connections and be notified to go to a
room where applicable."

   Hun-lir said, "This is good.  Sounds like you've really thought this
out."

   I said, "Thank you."

   Shan-dra said, "The remaining ones will be the hard matches.  Virginity
is not an option." Everyone laughed.  "So we have to find a partner for
everyone.  We will use a basic survey of the Earth person's preferences,
such as hair color and butt shape, to conduct guided interviews with a
facilitator present.  The Earth person will get some choices and then be
required to select from among them.  I think we should also allow them to
bring the Glapi of their choice if they have someone they know who is not
on our volunteer list but is willing.  If they still don't choose, we will
choose for them.  The matches will then be scheduled for rooms."

   John asked, "Should any of these people be drugged, maybe at least the
reluctant ones?"

   I said, "We think that they should be conscious not just because it's an
intense experience but because anal penetration is safer if the receiving
partner provides guidance.  I think some of them if not all of them will
end up enjoying themselves if they relax and cooperate.  If some are truly
afraid to do this despite the medical necessity, maybe we can tie them down
and have it done anyway for their own good."

   John shrugged and said, "You're right, we would have to.  Probably
harder to get a volunteer to perform non-consensual intercourse but someone
out there will want ass badly enough to do it."

   We all looked at each other awkwardly.

   Hun-lir said, "Well, this three-tiered approach sounds great to me."

   John said, "One adjustment I want a bigger safety factor, just in case,
so let's create 12 rooms so we can potentially get this done faster."

   I felt like I would miss out.  Shan-dra saw this and winked at me.  She
said, "Ok, easy enough to adjust the construction system and just use more
of the building's framing slots."

   Hun-lir said, "You two have done a lot and have far to go.  I'd like for
you to get some rest while others compile the volunteer list, prepare the
dance area, and arrange the men's and women's speed-dating."

   We agreed.

   Shan-dra said, "We'll go adjust the construction and then take a nap."

   The directors left.

   She said, "Now, let's quickly deal with making sure we can monitor it
all!"

   I said, "But with the 6 added rooms, how "

   She said, "Rin-Jha in security is an old friend, I've known her since we
were young adults.  She lost her virginity in the back seat of my transport
on a double-date."

   "Let's adjust the controls but please tell me about it while we work!"

   "Glapi young people mature sexually somewhat before they are
economically ready to move away from the parental home.  I understand this
happens on Earth too.  Parents discourage completing the cycle since that
can lead to unwanted pregnancies.  It's easier to stop here than on Earth
since it takes more than one copulation to cause impregnation.  But young
people begin to crave sex due to the hormones that complete their physical
development.  What is typically possible is to do an occasional entry of
the male by the female it's difficult to get together and complete the
plaque formation with parents around but copulation here and there can be
achieved."

   I said, "I get it...sex at the drive-in!"

   "Yep.  Since the male isn't going to get to do the return, the female
usually manipulates his genitals with her hands or mouth to make sure he
will have a good time and be willing to put out for her again.  It also
helps that the male will orgasm when she comes inside of him.  Lavatories
at such places make allowances, and the males often practice preparing long
before they experience full intercourse both to be ready just in case and
to give their dates the idea that sex might occur that gets you more dates.
So my date and I were making out, rubbing each other and planning on mutual
masturbation since he wasn't ready to do more.  Rin-Jha took her date on a
version of the courtship walk that's pretty serious but so far it had led
to nothing more than mutual hand jobs.  All Glapi females work on having a
nice ass because it directly helps you get laid, but hers was an especially
tight yet rounded figure-eight type.  She did her exercises constantly
because she wanted to impress a male enough with her ass to get him to let
her penetrate his ass."

   "I bet her dedication paid off."

   "So they came back from the walk and soon had their pants off."

   "In a parking lot?"

   "Yes, remember we're more accepting.  She got him facing away from her
with a classic move started a back rub from the front and then slowly got
him to move so it would feel better as she massaged his whole back with
both hands.  Then she put one hand on his penis and stroked his growing
erection.  My date and I didn't stare, since we didn't want them to feel
self-conscious, but we were half stroking each other and half monitoring
the action in the back seat.  We saw him raising himself onto his hands and
knees to give her access and she stroked him harder as he rose to keep him
going.  Without stopping the stroking, she began to massage his anus with
her other hand.  I heard him sighing.  She put a finger in and he took a
sharp breath but didn't stop her.  I tried to touch my date's anus to see
if he would at least let me do that."

   "No luck?"

   "He grabbed my hand and guided it back to his penis.  I saw Rin-Jha
pushing fingers in and out of her date's ass while stroking him to
discourage resistance.  Then she continued stroking him as she guided the
head of her organ between his cheeks with her other hand.  I heard him say,
'What are you doing?' and she told him to relax and that it would be all
right.  I heard him say, 'Ow, that hurts', and she asked, "Do you want to
stop?'.  He grunted and said 'No...I mean...we shouldn't be doing
this...ohhhhhhh!' but he didn't resist, so she kept up the pressure.  He
stopped objecting and just moaned as if there was mild pain.  My date and I
gripped each other's penises hard.  We heard her grunt with effort and then
he cried out loudly, 'Owwwww, oh hooo hooo, ahhhhhh' as she slid past the
sphincters and all the way in.  She sighed with relief and I could see she
was savoring the new sensations.  She asked him if he was ok and he said he
was fine but a little sore.  Then she used his ass for her pleasure it was
so new that she got carried away in her own experience and pumped him
quickly as he cried and moaned.  I think it hurt a little since he didn't
know how to relax and he was naturally tight, but he knew he had to do it
sooner or later.  It obviously felt great for her and his sobs only made
her more excited.  I heard her start saying, 'Yes, yes, oh, yesssssssss!'
and saw her hips jam against him repeatedly as she unloaded years of
frustration into him.  He had an intense orgasm of his own as her juices
took effect and their bodies writhed as they finished transferring the
fluids.  Afterwards they both felt a little embarrassed, since we had been
in the car, she had pressured him into the act in front of us, and he had
cried the whole time, but within a month they did it again."

   "Wow.  Just goes to show you how risky it can be to admire someone's
buttocks."

   "Yes." She turned, bent over to show me her backside, and then faced me
again.  "Anyway, I've known her a long time and she likes sex so she will
understand and probably help us get it set up quickly.  We'll tape it all
but key the video to our brainwaves that way even if the recording gets out
and someone watches it, all they'll see is snow." She had a smug look on
her face.

   I said, "Sounds good.  Looks like we're done adjusting the construction
plans."

   "Yes.  Let's go get some sleep...and only sleep for once!"

   We went to Shan-dra's flat and slept for about 5 hours and then John
called to tell us that we should prepare for the Glapi briefing.  Since we
were going to have to wing it and then take questions to fill the gaps for
both presentations, we he wanted for us to practice a little by talking to
the Glapis first so we would sound more confident and reassuring during the
Earth briefing.

   We showered and let the house system handle grooming to make us look
fresh and ready to face our audience.  Shan-dra wore a white ribbed fabric
top with a plunging neckline and used one of the new anti-gravity bras to
make herself look as much like an Earth woman as possible.  She wore
high-waisted pink pants that flattered her heart-shaped ass.  I wore tight
white pants and a masculine-looking white top to make myself look sexy but
innocent.  We went back to the office and straight to the conference
center.

   The auditorium was packed.  Hun-lir welcomed the assembled Glapis.  "Our
friends from Earth are in a very serious situation.  They are in danger of
suffering a potentially deadly microbial infection that is harmless to us.
While we will eventually isolate the disease agent and create a vaccine or
some other cure, for now the only way we can share our immunity is through
sex."

   A murmur ran through the crowd.

   Hun-lir continued, "The Earth leadership is in complete agreement about
the solution.  It's important to keep in mind that Earthlings not only
don't need anal sex for reproduction but actually have a taboo against it.
Some of them secretly do it anyway because they enjoy it, but they often
feel guilty or worry that someone else will find out."

   John said, "That's right Hun-lir.  My team is going to do this but
they're uneasy about it.  I'd appreciate it if everyone out there would
keep this sensitivity in mind.  Now we're going to provide an overview and
then we'll take questions to fill in any gaps."

   All eyes were on me.  I said, "To start with, thank you for volunteering
to participate.  I hope this will be an interesting and pleasant experience
for you.  I also want to make clear that this won't cause any long-term
harm to Earthlings.  It will be new for many of them and might cause
discomfort for some, but you don't have to worry about injuring anyone. 
The Earth rectum does not naturally rinse and lubricate like yours do, so
we will have to use artificial lubricants, but once that's done it should
function just fine."

   Shan-dra spoke.  "Keep in mind that they're scared.  Not so much for
their lives since we've got a temporary cure working, but the majority of
them have never had a penis inserted into their anus, and they will be
worried that it will hurt.  They will also be embarrassed since they're
going to break their taboo and everyone will know it.  It's going to be up
to you to make them comfortable physically and mentally.  And it's ok to
enjoy this it's going to feel good for you...we all know how good...."

   A "Mmmmmmmmmmmm" sound ran through the crowd.

   Shan-dra continued, "And they need for you to ejaculate into them to
transfer the immunity, the more semen the better, so I want you to use
their bodies to stimulate yourself and don't feel guilty about it.  This
isn't the time for inhibition."

   I said, "Most of them are going to try to pretend this isn't sexual, but
it is.  So the more you seduce them and arouse them, the better it will be
for both of you.  Your instinct will be to use your buttocks, and Earth
people enjoy those a lot, but keep in mind that some Earth people are very
turned-on by breasts, so try that too and see what works.  The females
won't be aroused by your bodies much, so in their case, be neatly groomed,
reassuring, and use gentle touching to get them to relax and cooperate. 
It's important to talk to them a lot so they know what you're doing and
know that you are going to try to make them comfortable.  Obviously, when
you're going at it hot and heavy you may find yourselves babbling and
grunting, but that's to be expected." I saw bulges in pants in the front
row.

   Shan-dra said, "We're going to hold three events to allow for some
partner choice.  About half of you are going to be selected but you get
some choice too chemistry and mutual attraction will make this a lot
easier. A 50/50 chance of getting lucky is pretty good, right?" The crowd
murmured in agreement.  The first event will be a dance, where you can hook
up with someone and take them to one of the special rooms we've prepared
for sex.  Then we'll have a kind of speed dating where you will get 8
minutes to persuade an Earthling to spread for you, after which we will
schedule time in special sex rooms."

   I added, "The rooms, by the way, are like small versions of fancy hotel
rooms.  We want to make this pleasant for everyone."

   Shan-dra continued, "Anyone who still hasn't paired off and gotten off
will have a chance to be matched with an Earthling by the facilitators. 
They will call you in based on simple characteristics that Earthlings can
express a preference for.  Since these will be the most reluctant ones, you
will take them to a room immediately so they don't have time to worry too
much."

   I said, "After it's all done, if any pairs want to see each other again,
they can either decide that immediately, in which case the receptionist
will reveal contact information, or both partners can indicate on a
follow-up survey we will be sending out that they want to continue, and we
will share identities at that time.  Otherwise, though you may see each
other around, it's officially anonymous so the Earthlings can pretend that
less people know what they did if it makes them feel better.  That's about
it."

   Hun-lir said, "We'd like to open the floor to questions.  Since Glapis
aren't very shy, we figure there's no need to have you send us anonymous
questions.  Yes?"

   A Glapi woman stood up.  "Does the lack of natural cleaning mean that
their asses are going to smell or that we will be pushing into feces?"

   I fielded it.  "Each Earthling will be given an enema beforehand.  If
anything they'll be a little cleaner than you're used to."

   Hun-lir said, "Yes?  In the red glittering tube top."

   A Glapi woman who was obviously trying to make the most of what she had
stood up.  "Do we take them on a courtship walk?"

   Hun-lir answered it herself, "Yes, let's do a short form of that.  If
leading your partner from the dance, walk in front.  If it's later, walk
down the hall and around the big conference room as if you're having
trouble finding the sex room and then double back and go into the room. 
That way they'll know what you have to offer."

   Hun-lir said, "Yes?  In the 5th row."

   Trying not to giggle, a Glapi asked, "How long should we pump for?"

   Shan-dra took the question.  "That's up to the two of you.  If the
partner is feeling pain or discomfort, try to let yourself go quickly.  If
necessary, withdraw and stroke yourself until you're almost ready to orgasm
and then penetrate only to finish.  If you're both feeling ok but the
Earthling isn't having a good time, try to stay in for at least 10 minutes
to build up fluids and then finish.  If you're comfortable and enjoying
yourselves, take your time.  Keep in mind that this will be new to most of
your partners and they may feel sore later so err on the side of caution."

   A Glapi woman raised her hand.  Hun-lir said, "Yes?  In the blue suit."

   "What if the Earthling wants to do that kissing stuff they do?"

   Shan-dra answered, "It's up to you.  I've done it and it took some
getting used to but it certainly isn't disgusting or harmful.  It will
definitely help you to seduce them by introducing something familiar and
letting them get comfortable with your body.  With the females, kissing and
sucking on the milk glands is highly arousing.

   "Yes?  On the left."

   "What if the Earthling panics as you're trying to enter?"

   I answered, "It's up to you to get them to cooperate.  You can reduce
the chances of panic by not emphasizing your penis, talking in soothing
tones and keeping the action going at a smooth steady pace.  Talk to them
as if getting laid depended on it reassure, sweet-talk, reason, or maybe
even use the classic, 'I'll just put it in for a minute' line."

   Han-lur pointed to a woman in a shiny gold pantsuit.  "Your question?"

   "Could you explain just how the Earthling anatomy is different from
ours?"

   John said, "Let me answer this one I've been studying it like mad in
preparation for this presentation so I might as well share.  Earth and
Glapi males don't differ much.  The Earth males have larger testicles
because more promiscuous mating has meant that they sometimes have to
compete with another male's sperm by sending in a lot of their own.  It
will be important to be careful because these can get in the way more than
you're used to and pressure on them hurts a lot.  The rectum can be used
for intercourse but it isn't part of the reproductive system in either sex.
So while Earthlings can accommodate you, they will need artificial cleaning
and lubricating first to make it better for both of you.  Earth males like
to have their penises stroked and can orgasm from this alone, after which
they are turned off by penetration so be careful not to let them orgasm
when you're giving them foreplay to get them aroused.  Once you're inside
them, you can stroke all you want to keep them cooperating hormonal cues
from your body will prevent them from climaxing until you do."

   Hun-lir looked at John and asked, "So how about your females?"

   John said, "They're very different from Glapi women.  An obvious thing
is that they don't have a penis.  That's because Earth mating is a one-time
and one-way event it can be repeated but a single male inside female
copulation is all that is necessary for reproduction.  The nerves that you
have in your penis are inside a small protrusion called the clitoris that
can look like a bump or like a tiny penis.  Since there are so many nerves
in such a small area, it is extremely sensitive, but gentle touch is
pleasurable and arousing.  The urinary tract opens just underneath it and
does not go through it.  The Earth female has an opening similar to the
return slot but it is called the vagina.  The vagina is tighter than your
return slot, but it has less voluntary control and cannot create any
significant suction.  Earth females have larger breasts that are always
near their full size and these are very sensitive to sexual stimulation. 
Just like you, the Earth female's rectum is not involved in reproduction.
I'm sure some of you have tried it, but there seems to be a Glapi taboo
against male inside female anal sex."

   The crowd murmured.

   John continued.  "Some Earth females do sometimes take a penis into
their anus either to please a male or for variety.  Just like you, the
Earth woman has no cleaning and lubricating glands in her rectum, so
artificial preparation will be required."

   Hun-lir said, "Yes, in the back row."

   A Glapi who looked less attractive than the others around her asked,
"Are some of them old and out of shape?"

   Shan-dra answered, "We all know that any ass is good ass, but you're
actually in luck their space travelers, like ours, are all in great shape.
I think you'll find their bodies very appealing."

   Hun-lir said, "We have time for one more question anything else you can
ask offline...yes, in the pink jumpsuit."

   "What is different about doing the women vs.  the men?"

   I said, "Our women are used to being penetrated that is the most usual
kind of sex on Earth.  They're less likely than the men to be uneasy about
having a penis pushed into their bodies.  On the other hand, since they're
straight, many are going to have trouble getting aroused by Glapi females,
so you may find that it becomes somewhat procedural rather than erotic for
them.  Most of the men are not used to penetration, but they are easily
aroused and have trouble thinking once they're turned-on.  So the best
strategy with the men is to get them excited and then just guide them into
your kind of sex."

   Hun-lir said, "I want to thank all of you for being here, and I hope to
see you back in about 3 hours for the mating dance.  Formal registration
for the program will be at the door...and good luck!"

   John said, "I think that went well."

   Hun-lir said, "Good job out there you two.  Now let's take a short break
while the housekeeping system prepares the room for the Earth group."

   Shan-dra and I went to our work area and had glasses of a berry-flavored
soft drink.

   She asked, "What do you think?"

   "It was just what we needed great considering we weren't able to
rehearse."

   "I think so too." She kissed me.

   We stood up and kissed and ran our hands over each other's bottoms.

   Shan-dra said, "I wish I could bend you over right now.  Talking about
sex makes me horny."

   "Me too.  Time for us to go back down the hall though."

   We finished the drinks and returned to the auditorium.

   The room was now full of Earthlings who looked either scared or like
they were trying to maintain some kind of dignity.  They were mostly quiet.

   John faced the audience and said, "Welcome!  I know this is a
frightening situation, let's just admit that, but we have a solution and
everyone is going to be ok.  I think we can safely assume we all get the
general idea of what's going to happen.  So we'll go right into the
details. I want to start by explaining the normal Glapi mating process so
you understand why the immunity transfer is possible.  Glapis have a
bidirectional mating system...the cycle starts with the female squirting
her semen into the male's rectum, and from there a small number of the
cells attach and form a plaque.  Her cells grow tiny threads through his
abdomen and merge their cytoplasmic DNA with that of his sperm, and the
interaction leads to greater shuffling of the genes and helps protect
Glapis from infectious diseases.  After a week or so, with additional
copulations to keep the process going, the threads do their work, and then
the male feeds the combined material back into the female's body through
the return slot, which is similar to a vagina.  The female's body then
carries the fetus just like on Earth.  For Earth men, the process will
start and immunity will occur just from having the cells in the body you do
not have to finish the cycle.  For Earth women, the plaque will briefly try
to grow and then slough off this should be enough to grant you the immunity
since all you need is for it to start forming to get some of the material
into your system.  Now, let's hear about the act itself."

   I was a little embarrassed but I knew I had to do this to save lives. 
"I want to start off by saying that at least for me, it felt good.  There's
a bit of soreness the first time, but it's a kind of pleasure pain and
you'll find it to be an intense experience.  Statistics show that at least
20% of Earth people have tried it, so that probably means plenty of you
have too and you're all here and ok.  That's proof that it won't cause any
long-term harm.  In case you haven't personally tried it before, here's how
it works.  The Glapi woman courts her partner to get him to cooperate. 
Then she stimulates him until he is aroused enough to allow her to insert
her erect penis into his rectum.  She then begins pelvic thrusting to
further excite both partners.  When ready, she ejaculates into him as she
reaches her climax.  The juices contain hormones that both allow and
trigger her partner's orgasm.  It feels good."

   Shan-dra said, "The key to completing this is to let yourself relax and
cooperate.  You can treat it like a medical procedure or treat it like sex
or something in between, but you have to work with your partner so she can
keep you as comfortable as possible.  You will be given privacy and the use
of a small but fabulous room like the ones in fancy hotels to make it
easier.  Do not worry about what your Glapi partner is experiencing believe
me, coming into someone's ass feels good no matter what."

   John said, "I want to clarify something about sexual preferences.  Glapi
women are generally attracted to men, but there are lesbians here just like
on Earth.  To make it practical for the Glapis to be fully aroused, we are
going to match the Earth women with lesbians and the Earth men with
straight Glapi women.  It's just necessary if we're to turn the Glapis on
enough to penetrate us, besides which, at least this way the Glapis will
all be matched with the kind of partner they're used to.  My suggestion is
that you Earth women view it as a sensual experience if you can't get into
it as a sexual experience treat it as a medical procedure only as a last
resort.  Han-lir is going to tell you more about the partner choice
process."

   Hun-lir spoke.  "I want to say on behalf of the Glapis that we are sorry
this infection occurred.  Had we known you were susceptible we would have
set up a quarantine and helped to develop a remedy before you were allowed
to breathe our air.  With that said, we are where we are.  We have a large
number of volunteers who are going to help out.  Whether or not you want
this to be sexual, we think that your comfort will be enhanced by a choice
of partners.  To bring pairs together, we are going to have a dance, a
speed-dating event, and finally, if you still haven't chosen a partner,
we'll do personal introductions with a facilitator.  The Glapi women have
some right of refusal, but there are 200 of them hoping to fully
participate and only 100 of you, so you'll find them mostly agreeable if
you meet someone you like.  I encourage you to look your best at these
events it will make you more confident and make it nicer for everyone. 
Shan-dra will now explain to you what a Glapi woman thinks is attractive."

   Shan-dra said, "Glapis are almost exclusively attracted to a partner's
buttocks.  We evolved that way.  The derriere is a good indicator of a
partner's health, and instinctively we all want to mate with someone with
good genes.  Also, the hole that is going to give us pleasure is right
between the cheeks and that makes us associate them with sex.  We also like
tight clothing and good grooming.  Personalities matter too, but there's no
one type that appeals to everyone.  So, in summary, what I recommend is to
be neat, pleasant, and dress to show off your backside."

   Hun-lir spoke, "The first introduction event will be a dance.  I
encourage you to use this opportunity to test physical chemistry with a
variety of partners.  To make it easy to tell Glapi lesbians from Glapi
straights, the straight women will dress without the usual front patch. 
You are of course free to talk to anyone you like, but for partner choice,
the Earth women should interact with the lesbians and the men should
interact with the straight females.  After you have met enough potential
partners to give you an idea of who is out there, you may develop a
preference.  I know there is an Earth taboo against anal intercourse, so if
you feel shy about approaching someone and essentially asking her if she'd
like to stick her penis up your ass, you can tell one of the event
facilitator instead and they will go ask the Glapi for you, and if she's
interested the facilitator will bring her over to you.  Most of all, relax
we've arranged all of this because we like you, and I know you are going to
do fine."

   I explained the speed-dating.  "There will be a second chance to meet
would-be donors at a speed-dating event tomorrow.  You will spend 8 minutes
with each of a series of Glapis.  Each Glapi woman will naturally try to
persuade you to choose her.  Keep an open mind and give each one a chance
to appeal to you.  You will both receive a scoring device to keep track of
your interest level during the event.  So the Glapis can't just select
everyone in hopes of getting inside at least one of you, they will only be
allowed to select a limited number of Earthlings as matches.  Then we'll
use the data to find acceptable pairings.  If a room is available, you will
be able to use it right away; otherwise you will be placed on a schedule
and need to return.

   Shan-dra said, "Since there has to be someone for everyone, we will
complete the pairing with in-person matching by facilitators.  We will
collect some basic likes and dislikes on a short questionnaire and then
introduce you to Glapis we think would be a good fit for you, so to speak.
Since some of the participants in the final introduction event will be
there because they hesitated earlier out of fear, your selected Glapi
partner will immediately lead you to one of the rooms so that you won't
have time to worry."

   John said, "We need to have everyone paired up and the acts completed
within 7 days.  Let's call it 5 days to build in a safety margin.  There's
no need to do it right away because the temporary antibiotic and
prophylactic regimen will be good for at least a month.  In case it helps
you to feel better about complying, I'm making it a formal order for all
Earth personnel to receive at least one Glapi female ejaculation into his
or her rectum.  Now, we're going to answer the anonymously-submitted
audience questions."

   Shan-dra read, "Will it hurt?"

   I knew I had to speak candidly.  "It's what we might call a
pleasure-pain, at least at first.  You'll feel a mild burning sensation,
stretching, and fullness during the intromission.  You may feel like you
need to have a bowel movement.  As your body adjusts to accommodate the
penis, you will relax and the burning will stop.  The stretching and
fullness will still be there but will start to feel good.  Once the penis
is moving in and out you'll stop feeling like you need to use the toilet
and will feel like your insides are being massaged.  Overall, the less you
resist and the more you relax, the better it feels.  After the initial
discomfort it is an intense and usually pleasant experience your nerves
will be extremely excited in your whole abdominal area and when the energy
is discharged, you will have a very strong orgasm."

   John read one.  "Is it sex?"

   Shan-dra answered it.  "For your Glapi partner, yes.  She will feel like
she is mating and her body will reward her with a feeling of ecstasy for
doing it.  For you?  It's whatever you want it to be.  I think it's sex
because you're connecting your bodies to transfer reproductive fluids and
you're both going to have an orgasm as a reward for doing that.  You could
think of it as just something you have to do, as if you were getting an
injection with a penis instead of a needle, but either way your partner
will consider it sex."

   I read, "Can we get pregnant from this if some of it leaks?"

   Some of the crowd laughed.  I answered this one myself.  "No these
fluids only contain the first part of the cycle.  The men's bodies will of
course start to form the sperm-modifying structures as if they were going
to give the material back, but these will be resorbed if there are no
further applications.  The women's bodies will reject the plaque formation
and eliminate it with normal wastes."

   Hun-lir read, "Will we always orgasm?"

   I answered, "Yes.  If you cooperate and enjoy it, you will have a strong
orgasm when the Glapi hormones take effect.  If you aren't having a good
time, it will be more like a sneeze, but you will still experience a
release."

   Shan-dra read, "Where did the volunteers come from and why are they
doing this?...My friends and I recruited them by calling Glapis we knew in
a big chain.  We also allowed members of the Earth and Glapi technical
teams to nominate any Glapis they knew.  It was pretty easy to get them to
participate since it feels very good to penetrate someone and there isn't
always a receiving partner available."

   I read, "What aftercare is available?  Will there be follow-up?"

   John answered, "We will have medical and psychological care available
afterwards.  You will all be checked out to make sure you are unharmed and
to verify that the immunity has taken effect.  Some of you will feel
confused about what you've done, so counselors will be available to help
you explore your thoughts."

   Hun-lir read, "What if I don't choose a partner?"

   John answered, "Unfortunately I can't let any of you get sick.  So
anyone who doesn't cooperate will be restrained, blindfolded, cleaned out,
relaxed as much as possible by vibrating probes, and then penetrated
anyway. We'll do it as easily as we can, but we will have to make you do
it."

   The crowd murmured a little and some heads nodded in agreement.

   Hun-lir read, "I'm embarrassed about making noise, what can we do about
that?"

   Shan-dra answered, "The rooms are heavily soundproofed, so no one but
your partner will ever know, and all the Glapis have agreed that they will
keep whatever goes on in the room secret.  The actual copulation is an
intense and moving event.  Vocalization is natural and almost everyone will
do it, so there's no need to be embarrassed.  The sounds will include
moaning, grunting and crying, and pleasure and ecstasy are possible too. 
Glapis like to talk about sex during sex, so your partner will really enjoy
it if you respond with speech.  The talking might get dirty or nonsensical
and that's ok.  It will be a lot easier if you aren't trying to keep quiet
this isn't torture; it's copulation.  Your partner will make noise too, and
she's not going to be embarrassed at all."

   I said, "I'm going to answer a question you may have but that no one
asked....What if you like the experience and want to see your partner
again?...That will be allowed if you and the Glapi both indicate on your
follow-up survey that you would like further contact.  Don't worry about
what anyone else will think it's possible that you just want to buy her
dinner to thank her for helping you out.  Otherwise, if you don't ask for
each other's contact information, it will be treated as semi-anonymous. 
Since they live around here you will probably recognize faces occasionally,
but you don't have to discuss what happened with anyone in the future
unless you want to."

   John said, "Would anyone like to ask further questions?  It's ok to do.
You're all going to do this so whatever you're thinking might be on someone
else's mind too."

   No one raised a hand.

   John said, "Ok then.  If you want to ask any of us a question offline,
we're available anytime.  Please return here in about 2 hours for a light
dinner and dancing.  Dress to impress."

   Shan-dra and I smiled at each other.  John looked relieved.

   Hun-lir said, "We should have experienced people available at the rooms
area and in the auditorium," and pointed to Shan-dra and I.  "John and I
will attend the dance to reassure everyone.  Now let's get out of here for
a while so the building's systems can reconfigure the room."

   Shan-dra and I were looking forward to this.  We went back to the rooms
and tested out the registration system and then tested out the camera
system.  She went into one of the rooms and yelled, "I want you to come
now! Shove it in my ass hard, ohhhhh, weeeeeeeeeeee!" and I was able to see
and hear her when playing back the recorded sample.

   We went down the hall and looked at the dance area.  It looked very
nice. We decided that we would first both go to dance and that I would
later go back to the reception desk to assist our Glapi volunteer helper
once couples started going to the rooms.  I would be available to reassure
the first few Earthlings after all, I had done this before.  Then we lay
down in one of the rooms and got some rest.

   It was time.  I watched Shan-dra walk in front of me and I wished we
were going to use the rooms ourselves this evening.  Just the thought of
all that mating was making me horny and a little envious as I watched her
ass twist in her tight pink pants.  I thought about what else was in those
pants.

   At the auditorium, there were light refreshments and a purposely
undersized seating area for the number of attendees to encourage dancing
and mingling.  It had been decorated with a happy "love" theme of hearts,
rainbows, and flowers, with multicolored streamers hanging between them. 
The crowd was murmuring.  We took some simple crackers and Shan-dra had a
fruit punch beverage while I had something blue that tasted like lemonade.

   A male Glapi emcee announced, "Hello out there!  We all know why you're
here, so let's have a good time...before you have a good time!"

   The crowd giggled nervously.  I hoped Shan-dra wasn't the jealous type
as I checked out all the butts on display.  Glapis look different enough
from Earthlings to tell them apart at a distance, but it's more difficult
from a rear view.  So round...it almost hurt to look but I couldn't stop.

   The emcee said, "But seriously, you all look beautiful.  I guess that
just goes to show you have to primp if you want to pump!" The crowd
groaned. "Now, all of your drinking glasses have recognizable symbols on
them, so don't hesitate to put them down while you dance." A Glapi pop tune
began to play as he talked over it.  "In fact, I want you all to put your
drinks down right now and find a partner!  Don't be embarrassed because I'm
going to point out anyone who doesn't find a partner and that'll be worse!"

   Shan-dra and I obeyed.  John went out there with Hun-lir.  Now nobody
had to be first.  Gradually almost everyone was dancing.  The emcee
pretended someone wasn't and said, "You there in the shiny red outfit,
c'mon, there's hundreds of people here, somebody must look hot to you!"

   To really set an example Shan-dra and I ground our crotches together and
grabbed each other's asses.  We slapped together so hard that even her
small breasts bounced.  There was a lot of really dirty dancing.

   Then they played a slow song from Earth.  The emcee said, "I want you to
talk to your dance partner.  Ask them when they last mated to make them
think about sex.  Then grope!"

   It was easy to cooperate with this.  Even the Earth women were getting
into it.  I hoped they were asking the Glapi women about their sex
practices and getting curious.  I could feel the tension and lust building
already.  I looked over Shan-dra's shoulder and saw John running his hands
over Hun-lir's ample backside...on the large side for Glapis but obviously
very firm.  We turned and I saw couples engaged in conversations as their
bodies instinctively negotiated.  Then I saw Hun-lir from behind...her
cheeks were straining against her pants as she dry-humped John.

   Shan-dra and I danced a few more songs and then she circulated to help
the facilitators get couples to do some serious courting while I went back
to the private room area to prepare.  A convenient store room had been
configured to be our secret monitoring room.  I activated the recording
system...an ingenious thing Shan-dra's friend Lin-kam in security had
prepared for us.  There were multiple hidden cameras in each room, and an
elaborate monitoring system in a store room.  There was a cube-shaped
control stick to switch between views.  I selected a room and then pressed
the top to see from above the bed.  It control device was like a voodoo
doll of the room!  I could press a side of the control to see the view from
that wall of the room.  I decided to have our facilitator assistant do most
of the check-ins so I could peep.

   As I reached the reception area, John walked in with Hun-lir!  He said,
"I'm a little nervous but I had to show our team that I wouldn't ask them
to do anything I wouldn't do myself.  Hopefully now they'll feel less
embarrassed and start coming in here...and coming in here." He giggled
nervously.

   Hun-lir said, "Made sense for the directors to be with each other too,
that way there's a sort of dignity...let's go John" and lightly slapped his
ass to get him moving and then led him down the hall.

   I was shaking with excitement as I returned to the store room where we
had set up the secret monitoring system to watch them.  She was seducing
him all right, making him comfortable so she could get inside him.  I saw
him visit the lavatory, where the systems cleaned him out, and soon they
were both naked and Hun-lir gave him a back rub in the hot tub to relax
him. They were hugging and kissing she seemed to have gotten that message
about Earthlings.  Then he revisited the lavatory, probably to empty his
bladder and replace any lubricant that had washed off in the water.  I saw
her give her erect penis a few strokes as she mouthed, "Oh yeah." When he
came out, she held him and then guided him to the bed.  I got a good look
at her relatively big butt and rubbed myself a little.

   Hun-lir got a glove and proceeded to use her hand to get John's hole
relaxed.  She was kissing and reassuring him the whole time and he was
slowly stroking himself.  Then it was time.  He was visibly trembling as he
bent over, but he spread his legs wide and presented his rump to her.  I
looked from the side and saw her erection pushed against him.  He said, "Go
ahead...do it!" and she pulled on his hips to force herself into him.  He
yelled, "Aaaaaaaaaaaaaa!  Hold still!" Hun lir paused.  She had an obvious
look of pleasure on her face.  She leaned forward to comfort and reassure
him and I saw her hips squirm just a little...then more.  I looked at his
face as she began to move his eyes looked bugged out and he was gasping for
breath and grunting.  She looked very satisfied as she slid back and forth
in him and panted.  I changed the view and saw her big tight cheeks
squirming to push her into him over and over again.

   I heard John's noises change to more of a deep moan, "Uh uh uh", and saw
his head drop to the pillow.  Hun-lir said, "That's it...relax and let me
in...feeling better now?"

   John said, "Yes...doesn't hurt now that I've opened up...and you were
right, this is sex.  Does it feel good for you?"

   "Oh yes...it's great to see your ass...I can see myself moving in and
out between your sexy buns...and so tight...you really are a virgin."

   "Uh...Uhhhhh...  Uhhhhh...yes.  So exciting to give myself to
you...making you feel good...uhhhhhhhhhh."

   Hun-lir's face was a mask of effort and delight.  "I'm...glad I got to
be the one." She sighed.  "Do you like my ass?" She kept pumping the whole
time.

   John was gasping for air.  "Yes.

   "Makes it easier to let me in, doesn't it?"

   "Yes...uhhhh huhhh uhhhh...so round...so powerful."

   Hun-lir pounded him hard.

   John babbled, "Ahhhhh...ahhhh...oh...yes...use those buns...need
you...get me...fill me...oh."

   I rubbed myself hard.  I imagined how he felt.  John was stroking
himself with one hand and holding the pillow for his head with the other.

   Hun-lir said, "Feel really good...it's time...ready?"

   I quickly switched to their faces.  John was a decisive leader, even if
he was bent over with a penis up his ass.  He gritted out, "Yes.  Do it."

   Hun-lir concentrated and looked confident.  She changed her pace to
firm, slow, deliberate thrusting.

   John said, "Ohhhh...I'm ready."

   I had trouble deciding which view would be best, their faces or her buns
twitching as she filled him.  My fingers touched both sides of the control
and it went into a split screen mode.

   Hun-lir picked up her pace.  "Uh...Uh...Uh...uh uh uh."

   John looked as if he was contemplating and then put his head down again.
He panted hard but didn't make noise.

   I saw Hun-lir throw back her head in triumph, jerk him back hard enough
so his knees left the ground, and then she yelled, "Ahhhhhhhhhhhhhhhhhhhh!"
as her buttocks clenched to push all the way into him.

   John's face had a look of surprise and then his own orgasm started.  He
started with a screeching noise and the sobbed, "Yeeeeeeeeeeeeee! 
Yaaaaaaaaaaa!  Haaaaaaaaaaa!" His spine contracted and pulled him away but
she hunched right over him and kept their hips close as she gave him the
life-saving injection, "Ahhhhhhhhhhhhhhhh!  Ahhhhhhhh!  Ahhhh!" and then
she slowed and stopped.  She looked up and smiled.  John looked exhausted
but relieved.

   Hun-lir withdrew and lay down next to him.  "You ok?"

   John looked embarrassed about what they had done but he said, "Yes...and
thank you."

   "My pleasure...literally!"

   I stopped monitoring them and went to see what else was going on.

   One of the other rooms was occupied by an attractive brunette on her
knees with a Glapi mounted on her from behind.  She was gripping the pillow
tightly and crying.  Her head was facing forward and she had raised herself
up on her hands.  Tears were streaming down her face.  The Glapi slowly
pushed in and out of her and made no noise.  I took a long look at the
Glapi's buns she had a tight little roll that barely changed shape as she
moved.  I wondered whether the Earth woman was feeling humiliated or
feeling pain.  The Glapi had a look of dominance and pleasure she was
enjoying this even if her partner wasn't.

   The Earth woman put her head down and sobbed, "Oooo hoo hoo, oooo hoo
hoo." I saw her breasts swing as she picked her head up and begged, "Please
finish...oh...I want this to be over." She went back to crying as the Glapi
said nothing and maintained a slow and steady rhythm.  The Glapi smiled she
was enjoying this!  The Earth woman stopped her crying and tried to push
the Glapi over the edge by grinding back but it didn't work.  The Glapi did
make noise, "Ahhhhhh ahhhhhh ahhhhhh", as if she liked the new sensation.
The Earth woman stopped pushing back and started crying again as the Glapi
resumed her thrusting.  "Please...hoo hoo...." Her eyes were getting red
and puffy.  She didn't physically resist or try to get away, probably
because she knew she needed the Glapi semen to protect her from the awful
plague.

   The Glapi woman must have realized that too.  She was obviously enjoying
her control of the other woman.  She let go and slapped the Earth woman's
buttocks with both hands, causing her to yell, "Owwwwwwwwwww!  No!"

   The Glapi finally spoke, "Oh yes!" and then slapped harder and now used
one hand for leverage and spanked with the other every time she pushed in.
The Earth woman howled as her soft ass jiggled under the blows and she
reflexively tightened her sphincters, which made her cry out in pain each
time they tightened without being able to contract.

   The Earth woman begged in a hoarse voice, "Come in me, please, come in
my ass, come in me!  Get this over with!"

   The Glapi said, "No, this feels too good.  You'll be fine later. 
Uh...uh...yeah."

   The Earth woman finally lost all control and started screaming.  I hoped
really hard that the soundproofing worked and that nobody about to be
mounted heard it.  The rush from hearing her partner scream made the Glapi
woman push a few more times and then I saw her grip the Earth woman's waist
tightly with both hands and begin to fill her.  The Earth woman stopped
screaming as her hormone-induced orgasm started and first grunted and then
made high pitched sounds with each contraction, "Eeee, eeee, eeee, eeee."

   The Glapi woman withdrew with an audible plopping sound and stood up to
get dressed.  I could see the Earth woman's anus gaping as it slowly closed
while she stayed motionless on her hands and knees with her legs apart.  I
saw a look of relief on her face.  As the Glapi left, the Earth woman let
herself fall forward and lay face down on the bed crying.  She looked
exhausted but I decided she was unharmed, other than maybe her dignity.

   I checked in with Shan-dra.  "Hey Shan-dra, you wouldn't believe the
stuff I've seen!"

   Shan-dra said, "It's been a good party over here.  That emcee is really
funny.  I can see couples admiring each other's asses and pairing off to
talk and test chemistry.  Our plan is working!"

   "I'll say.  They're going at it hot and heavy over here.  John and
Hun-lir finished and really enjoyed themselves.  Maybe you can get the
emcee to interview them about how it was?"

   "Sure.  And how was it?"

   "I watched them and then I watched two women.  The directors had a nice
and comfortable time.  The two women had some trouble the Glapi lesbian
deliberately dominated and hurt the Earth woman until she was screaming."

   "Whoooa.  That's not ok."

   I said, "Right.  It was exciting to watch though.  We can't directly let
on that we know, but let's issue a reminder announcement and also
specifically tell the Earthlings that we will find them a different partner
at any time if they think their partner is not trying to make them
comfortable."

   "Great idea.  That'll stop it from happening in the firstplace there'd
be nothing to hold over their heads and the Glapi really wants to get off
inside them."

   "It is really exciting to watch I can't wait to show you the recordings.
Are we going to get a lot more couplings tonight?"

   "I think so.  It's making me horny knowing so many of the people I see
will soon be having one of the most intense sexual experiences of their
lives.  Seeing a nice tush is always exciting, but knowing someone's really
going to get inside it soon makes me jealous.  I've finished the cycle and
I'm craving ass again."

   I told her, "We'll have to do something about that later.  Knowing how
much sex is taking place is making me horny and jealous too."

   "John and Hun-lir just arrived holding hands!  I guess they want to show
that they're ok so that other people cooperate.  She has a ridiculous smile
on her face.  He's walking a little deliberately I think he's a little sore
down there."

   "Have they been noticed yet?"

   "Definitely.  People are approaching them and they just hugged to show
they still like each other afterwards.  I better go talk to them to make
sure they address the crowd I'll ask them to emphasize that the recipient
is allowed to stop even during the actual copulation if the Glapi hurts
them in any way."

   "Great, I'm going to go back to the peep show."

   Shan-dra laughed.

   I went back to the monitoring system.  I saw two women doing a kind of
"69", with the Earth woman lying head-to-feet on top of the Glapi woman
sucking on her penis while the Glapi was licking the Earth woman's vulva. I
had never put Shan-dra's penis in my mouth the head was slimy-looking and
her organ had been up asses for years, which just seemed gross.  They
seemed to really be enjoying it though.  The Earth woman was a skinny
brunette with a fairly flat behind and very small, almost flat breasts, and
her cheeks were hollowed from her sucking.  She was alternating sucking
with bobbing her head up and down so that she could rest her muscles and
keep up with both it was pretty obvious she had plenty of experience.  I
wondered if it was possible to accidentally make the Glapi come, and if the
hormones could take effect through the throat membranes.

   I changed the channel and saw a curvy redheaded Earth woman with large
breasts and a full behind bent over with a Glapi pumping away at her.  She
had placed the side of her head on the pillow and looked relaxed.  Her
breasts were jiggling against the sheets with each push.  They were making
no noise other than slightly audible deep breaths and the Glapi was slowly
working her penis in and out of the Earth woman's rectum with a blank look
on her face as if she was trying to hold back for now.  I checked out the
Glapi's buns they were firm and heart-shaped and the wide lower part of the
heart flexed with each thrust.  The Earth woman's big butt stuck out on
either side when I watched them from behind.  I looked back at their faces
and could see the Earth woman's eyes glazing over.  I wondered how long it
had been since the insertion I would definitely have to find this recording
later actually I was going to find and watch all of the recordings later.

   This pair was getting the job done well the Earth woman was even feeling
pleasure.  The Glapi spoke in an affectionate tone, "You still ok Linda?"
The Earth woman said, "Feels good...take your time." The Glapi continued
her regular pumping but started humming slightly as if softly moaning with
her mouth closed.  The Earth woman reached back and rubbed her clitoris and
her breathing changed to panting but she still made no other noises.

   I watched the Glapi woman's buttocks squeeze and relax for a while as
their coupling continued.  So healthy.  So confident.  I was sure it felt
satisfying to be under her while knowing that nice ass was moving the penis
inside of you.  An Earth woman would be completely safe from getting
pregnant but the feeling would be close enough to regular Earth mating that
her body would allow her to enjoy it in a sexual way.  I wondered what it
felt like to be the Earth woman...to have spent your adult life opening
your legs and being penetrated...to have men stare at your breasts and
buttocks and wish they could mount you...to have them constantly scheming
to get inside you, both of you knowing that sooner or later you'll spread
your legs and give someone a reward for his efforts that is yours to
give...so much power from submission.

   I switched to the front again.  The redhead had propped herself up with
both arms.  Her face was flushed with arousal and she was looking dreamily
off into space while breathing heavily through her open mouth.  The Glapi
no longer looked blank.  She had a look of sweet agony and was letting go
but still didn't change her pace.  Her panting changed to gasping and she
looked like she was struggling to get enough air.  The Earth woman sensed
it was time and she smiled and then put her head between her hands on the
pillow.  The Glapi started to softly moan, "Ahhhhhh...ahhhhhh...aaaaaaa."
She leaned over the Earth woman and hugged her, then gripped her hips
tightly and made several powerful thrusts.  She exhaled sharply, then
hunched over and hugged the redhead as her hips jerked.  The redhead looked
surprised for a moment and stopped breathing, and then she lowered her face
onto the pillow and breathed hard.

   They sat on the bed.  The Glapi said, "Thank you; that was wonderful."

   The Earth woman said "Felt good for me too.  Thank you for the gift of
your immunity.  You made me so comfortable."

   They kissed and then the Glapi put her clothes on while I watched the
Earth woman wiggle naked into the lavatory.  This one went well.

   I realized I hadn't checked in with the facilitator assistant in a
while. I went out into the hallway to talk with her.  "Hi Shru-lar, how are
we doing?"

   Shru-lar said, "Seven visitors have left walking funny and we've got 10
rooms in use." She smiled.  "Doc saw one woman who had a rough time but she
wasn't physically harmed so we sent her to talk to a counselor."

   I asked, "Who's arriving?"

   Shru-lar explained, "The demographics for the humans are a little heavy
on women and management.  We had one interesting case where a human couple
wanted to be taken together, so I told them to go ahead they're in there
now."

   I wanted to see this.  "Great, well, carry on!"

   I went back to the store room and flipped the control and picked out the
blur with two people showing on the bed.  A thin man with short brown hair
and a thin woman with long blonde hair were embracing next to the bed while
two Glapis looked on.  The woman said, "Ready honey?" and the man nodded.
They kissed and then slowly got down on their hands and knees with their
legs apart and held hands.  The Glapis looked at each other and licked
their lips.  A Glapi with yellow hair and noticeably muscular buttocks
knelt behind the man and stroked his back.  A Glapi with blue hair got
behind the woman.  The Glapis used gloves and lubricant to massage their
partners' holes and help them relax and open up.

   The woman turned her head and said, "Eric, this is so relaxing...Jin-lar
and Hom-lir, thanks for trying to make this easy for us."

   Eric said, "Yes Lisa...feels good...." He turned his head over his
shoulder.  "I appreciate it too."

   The Glapis rubbed them some more and then tossed the gloves to the
cleaning system.  I switched to an overhead view and saw their erections
jutting out.  They fisted their organs and rubbed them on the Earth
couple's anuses.  Then they slowly applied pressure.

   Lisa looked scared while Eric had a look of resignation.  As Lisa was
slowly stuffed, her expression changed to one of surprise.  She clutched at
the sheets and grunted.  Eric asked, "Are you ok huhhh uhhhhhhh" as the
head of his partner's organ popped past his sphincters.  Both Earthlings
were now penetrated and breathing heavily.  The Glapi on Lisa said,
"Relax...bear down gently as if you were moving your bowels and your
sphincters will relax...we'll go slowly at first." The Earthlings looked
like they were concentrating.  The Glapis' hips moved forward until they
were all the way in.  Lisa sighed with temporary relief.  Eric gulped air
and was clearly fighting panic.

   The yellow-haired Glapi grabbed Eric's penis and tugged gently.  The
other woman rubbed Lisa's clitoris.  While the Earthlings were distracted,
the Glapis slowly began to move their hips.  As they picked up the pace,
they put their hands on their partners' hips.  Eric moaned, "Ohhhhhh," and
tried to spread his legs further.  Lisa softly moaned, "Ah...ah...ah" and
looked comfortable.

   Lisa said, "Hom-lir, how's it feel taking Eric's cherry?"

   Hom-lir said, "Good.  Nice and tight."

   Eric said, "Jin-lar, did Lisa's worn-out ass give you any trouble?"

   Lisa pretended to slap at Eric.  Now I knew who was who.

   I changed the angle to study the backside of Hom-lir, the yellow-haired
Glapi taking Eric.  She had highly-defined glutes, probably from a lot of
working out beyond regular exercise.  Her muscles rippled with each
powerful thrust.  I was glad Shan-dra's buttocks were smoother and more
feminine, but I couldn't help wondering what it would be like to feel that
strength.

   Jin-lar continued to enjoy Lisa.  They both looked happy as they ground
together.  Eric began to look more relaxed and then started to feel
pleasure.  They both moaned and Eric looked embarrassed.  Lisa said, "It's
ok Eric, I've enjoyed it from you for years and now you're learning how
good it can feel."

   Eric said, "I feel so dirty but I can't help being turned-on.  I never
knew how exciting it could be to have someone that deep inside you. 
Ohhhhhhh ohhhhhhh ohhhhhh."

   Lisa said, "I want to get a strap-on dildo and try being on the giving
end.  Uh uhhhhhhhh.  Would you like that?"

   Eric said, "I think so.  This feels really good.  Thank you Hom-lir for
making my first time so pleasant."

   Hom-lir said, "And thank you for choosing me.  I'm really enjoying
this."

   Jin-lar said, "Uhhhhhhh...Lisa, I'm enjoying being with you too."

   Hom-lir asked, "Eric, what made you select me?"

   I could hardly believe it.  Glapis obviously liked to talk during sex,
but she was actually asking him why he chose her while she was still inside
him!

   Eric was panting and finding it harder to speak.  "You seemed very
nice...like you wouldn't hurt me...ohhhhhhhh...." Hom-lir gave him a few
hard pumps to amuse them all by making speaking even more difficult.  Eric
said, "Ohhhhhhhh...ohhhhhhhh!" The women all giggled.

   Hom-lir said, "There were lots of nice people there."

   Lisa said, "It's ok Eric...we all know why."

   Eric said, "Your buns...so tight...yet round...like steel
bands...ohhhhhhhh...when you had me touch them I felt a tingle in my penis
and my hole actually started relaxing...knew you'd be the one...."

   Lisa said, "How about me?  Do you think I could ride you well?"

   Eric said, "Lisa, you can be my stud anytime...as long as we mostly keep
having sex the traditional way."

   Jin-lar said, "What about you Lisa, why me?"

   Lisa was panting heavily, "You're nice, you're Hom-lir's friend,
and...yes, your butt...so soft yet so firm...made me think about
sex...you're working that butt right now...ohhhhh ohhhhh ahhhhhhhh."

   They all started moaning and groaning instead of talking.

   "Ahhhhh!  Ohhhhhhhhh!  Hrhrhrhrhr!  Uuuuuuuuuuuhhhh!  Mmmhhhh! 
Aaaaaaaaaaah!"

   I watched Hom-lir's butt cheeks powerfully yet effortlessly contract,
then relax, then contract as she rode Eric.  I wondered if she had used
them on many men and decided she had.  It would be hard to turn down
someone so fit and confident, and she seemed nice besides.  Maybe she did a
lot of the first coupling without bothering with the return most of the
time males probably even knew it yet let her take them anyway.  But then,
her competition was constantly toning their asses too and beyond some level
of tightness the males would be more impressed by a nice shape and a good
wiggling motion.  She additional sex enough to participate in our program.

   The Glapis gripped their partners firmly and their pumping became more
urgent.  They were working hard to complete the mating.  I recognized
Hom-lir grunting "Unnnnhhhhhhhhh!  Unnnnnhhhhhhhhh!  Unnnnnnnnhhhhhhhhh!"
as she tried to push herself over the edge.  Suddenly Hom-lir exclaimed in
satisfaction, "Yes!  Yes!  Yes!  Oh!  Ahhhhhhhhhhhhhhh!" Eric looked
surprised for a few seconds and then gasped, "Oh, oh, oh," as he expelled
his juices all over the sheets.  His body tried to pull his hips forward
involuntarily but Hom-lir's working out benefited her again as she held him
in place and drained herself deeply inside him.

   Lisa said, "I want to feel like that!"

   Jin-lar said, "Here we go!  Unh!  Unh!  Unh!" and pumped furiously. 
Lisa squealed, "Eeeeee...eeeeeee...eeeeeeee!" Jin-lar's body must have
begun spurting her hormone-laced semen into Lisa before her full orgasm hit
because they started yelling together and Lisa pushed her backside hard
against Jin-lir, who had to make short fast strokes to keep herself
stimulated as she came.  "Mmmmmmmmunnnnnnph!  Ahhhhhhhhhhh!  Mmmmmunnnnph!
Ahhhhhhh!  Mmmahhhhhh!  Ahhhhhhhh!  Ahhhhhhhh!"

   I realized I was hard and slowly rubbing myself through my pants.  I
decided trying to watch someone's whole session was a lot better than when
I'd seen part of one with the women doing mutual oral.  I'd save the
incomplete ones for Shan-dra and I to watch later and focus on trying to
find a room where they were done washing but not yet having sex.  I checked
with Reception and Shru-lar said, "13 completed couplings; and 10 of the
rooms are in use now!"

   I went back to the store room so I could speak freely and called
Shan-dra.  I heard loud crowd noise.  I said, "Hi Shan-dra.  I'm starting
to need you really badly!"

   Shan-dra was able to speak freely in the loud auditorium and said, "I
know.  I'm getting hornier just knowing what they're leaving for.  We've
got a steady flow, so to speak, and John and Hun-lir are here, so I think I
can take a break for a while.  I'll come see you...clean yourself out and
get ready for it...all this excitement has made my body ready a few days
early...I can't wait to come!"

   I said, "Me either.  Good thing we designed this all so the facilities
system does most of the work everyone thinks we're doing back there."

   Shan-dra laughed and said, "Ok, now let's stop talking so we can start
doing!"

   I used the lavatory we had updated from the usual ones in the building.
I sat on the warm preparation toilet and the system advised, "Please
perform a natural bowel movement if convenient," and began to play soft
music.  I relaxed as my body began to evacuate and then my sphincters were
pushed open for their original purpose.  I realized that I had now come to
associate having my sphincters opened with sex, when at first the sex had
made me feel like I was in the lavatory.  The stretching felt good.  It
still smelled though, so the system flushed quickly and filtered the air.
It said, "Good.  Now we will clean you out thoroughly." The enema nozzle
appeared and worked its soft warm lubricated tip into me.  The system said,
"Now filling.  Relax your body and try to hold the liquid in until it
becomes difficult." Warm liquid entered me.  I held it for a minute and
then let it out.  The machine drew it all away quickly and then rinsed me.
It said, "Hold still and relax," and the nozzle returned.  "Now filling for
final rinse.  Relax your body and try to hold the liquid in until it
becomes difficult--if you do not hold it for at least 60 seconds you will
need a third cycle." I felt a warm liquid that was different from the
first. It tingled slightly...and then I realized nanobots!  It was using
disposable microscopic machines to do a perfect job.  I watched the counter
tick down and then I released.  The machine rinsed, dried, and then
lubricated me.

   I stepped out into the lobby and saw Shan-dra.  We embraced and kissed.
She said to the receptionist, "So Shru-lar, how's it going?"

   Shru-lar said, "I think our event is a success.  Most are leaving with
guilty smiles they're trying to hide."

   Shan-dra looked over the small counter and said, "Somebody's got a
stiffie...."

   I looked over and there was a tent in Shru-lar's pants that showed even
with her front flap.

   Shru-lar said, "I haven't stuck this in a man's ass for months!  It's
envious and keeps making me think about what's going on back there."

   Shan-dra said, "We'll have to do something about that." She put her hand
on my ass.  I looked at her in confusion.  She said, "Glapis aren't
possessive, at least not in the first phase.  Now go take care of her so
she can get back out here and concentrate on her work."

   I hesitated.  My values said I should be loyal to my girlfriend but she
was telling me to service another woman.  Shan-dra said, "Shru-lar, show
him your ass!" Shru-lar stood and turned her back to me.  She was wearing
high-waisted shiny red pants with jacquard lines that radiated downwards
diagonally on either side from the middle.  Her backside looked at once
small and tight and yet feminine and wide.  Shan-dra said to me, "It's ok,
feel them."

   I couldn't resist.  I reached forward and grabbed two handfuls of
Shru-lar's tush.  It felt wonderful.  Powerful, yet soft.  All woman. 
Shru-lar knew she had me now.  She said, "Follow me." I took one more look
at Shan-dra, who said, "Save some of that for me", and then I was walking
behind Shru-lar down the short hallway to the rooms, with my eyes glued to
her backside as it twisted and pulled the fabric back and forth.

   We reached the room and stepped in.  I panicked when I remembered that
everything in the rooms was being filmed.  And we had designed the rooms to
have no light switch or dimmer.  But then I remembered that only Shan-dra
and I would be able to see the recording, and I was certain she wouldn't
double-cross me.  I decided to perform well.

   Shru-lar told me, "I'm going to make this really good for both of us. 
First let's make sure you can't form a plaque other than Shan-dra's." She
gave me a small pill, which I swallowed dry.  Then she said, "Let's take
off our clothes."

   We both undressed.

   She said, "Sit on the bed next to me."

   I sat down and she grabbed my penis, which was soft because of
nervousness.

   "Don't worry; I'm going to make you feel really good."

   I looked over and saw her full erection.  To my relief it was about the
same size as Shan-dra's.  It was dripping slimy lubricant.  It was now or
never for my performance.  She was stroking me and it felt great, but I
said, "Let go for a minute." I quickly got down on my knees in front of her
and holding her penis at the base with one hand, I slowly pushed my lips
halfway down her organ.

   She sighed and gently touched the top of my head.  The taste was bad,
like fish mixed with grapefruit, but I applied light suction and bobbed my
head up and down on her.  She said, "Mmmmmmmmmmmmmmmmmm..." in pleasure and
appreciation.

   I took my mouth off for a moment and stroked her with my hand while I
told her, "I hope I'm making you feel really good.  I'm going to be the
best piece of ass you ever had!" I looked up at her as I massaged the head
of her organ with my lips and tongue.  I sucked again until I got tired. 
Then I went back to bobbing my head up and down.  I took my mouth off and
said, "I'm a gentleman at the office but an animal in the bedroom!" I
sucked again.  She looked dreamy and whenever she breathed out it sounded
like "Mmmmmmmmmmm...."

   I kept stroking whenever I stopped licking or sucking to talk dirty. 
All Glapis seemed to like that but I was performing for Shan-dra too. 
"You've put this up men's asses, haven't you?" She managed,
"Mmmmmthhhhhhh." I said, "I bet it feels really good...tight ass stretched
over your penis...naked buns presented for your enjoyment...." I bobbed a
few times as I reached back and grabbed her buttocks.  "Pumping this
irresistible ass of yours." I sucked hard and her erect organ throbbed.  I
knew it was time to stop so she wouldn't come in my mouth.

   I stopped all action and looked up at her.  I said, "I'm going to make
you really feel like a woman tonight...." I stood up and said, "Mount me
from behind and make me grunt so loud that Shan-dra will hear it!" Then I
got down on all fours with my legs apart and arched my back to display
myself as enticingly as possible.

   Shru-lar knelt down behind me and began to cram her organ in.  I
encouraged her.  "That's it, open up my tight ass.  Oh, slowly, it's so
big! Ohhhhhhhhhh...ahh ahh ahh...Oh yeah, I feel so filled, so complete!"
She pushed all the way in and then stopped to savor the feeling.

   I knew how uncomfortable horniness could be when you had to see
attractive people every day but weren't getting inside any of them.  I
wanted to give her the relief she needed.  It was exciting to have that
power to have someone view getting inside of me as an achievement.

   I said, "Wait!  Give me a minute to try to adjust!  Don't pull out, oh,
stay inside me...oh!  I feel like I've been impaled!  You're so big! 
Ok...gently...I know it's been a while but please start slowly." She held
my hips and began to thrust in and out of me.  She said, "Oh yeah!  Oh, oh,
yeah!  Yeah!"

   Her organ felt a lot like Shan-dra's but it was exciting to have a
different partner inside of me...one who had been a little desperate but
was now feeling great about herself and was going to feel even better
before we were done.

   As she continued to move inside me, I said, "Do you like feeling my ass
wrapped around your organ?"

   She said, "Yes...so tight...are you ok?  So good."

   I said, "How do you like this?" I carefully clenched and unclenched the
whole part of my rectum under voluntary control.  She said, "Ohhhhhhhhhh!
Ahhhhhhhhhh!  Nggggggggggggggg!  Oh that almost hurts...so
sweet...ahhhhhh!"

   She pushed harder to keep moving within me.  I said, "I bet you have a
huge load built up afater all these months...it's going to feel great to
get that out of your body and into mine." She could only manage,
"Mmmmmmmmth.  Ohhhhhhhhh...."

   It was hard to maintain the clenching so I relaxed and let her ride me.
"That's it, keep pushing against my ass!  Open me all the way up!  Get me
ready to take it all!"

   She said, "Ohhhhhhhhh!  Unt Unt Unt!" and pumped furiously.  I asked,
"Is your penis happy now?" She said, "Yes...oh yes...thank
you...ohhhhhhhhh!...Feels so good to mate again...ahhhhhhhh!"

   I said, "Uhhhhhh...I'm uhhhhhhhh having trouble talking...only thinking
of how stuffed I feel...so good...your penis...so hard...and it's going to
deliver your juices...uhhhhhhhh!...You feel so big inside me...so
powerful...."

   She made long firm strokes but slowed down a little.  I said, "Look down
where we're joined.  Look how far open you're stretching me.  That's you
inside my ass.  Your penis is deep inside a man."

   She said, "Ohhhhhh...ummmmmmmmm...gaaaaaahhhhhhhhhhhhh."

   I started squeezing her hard, using the backs of my thighs for extra
power.  "Let go.  It's time...let go...."

   She seized my hips and began to push hard as I tried to clench as much
as I could.  She was grunting from the effort, "Unnhhh unnhhh unnhhh!"

   I yelled, "Oh yes!  Do me!  Harder!  Ohhhhhhaaaaaaa!"

   Shru-lar had reached the point of no return.  I grunted as I used the
last power my sphincters had to push her over the edge, "Unnhhhhh Unnhhhh
Unnhhh!" She howled with relief, "Um um um um...ahhhhhhhhhhhhhhhhhhh!" and
I knew she was filling me.  She let go of my hips, fell forward, and hugged
me as my orgasm hit, "Aaaaaaaaaaaaaaaaaaaaa!  Hmmmmmmmmph! 
Aaaaaaaaaaaaaaaaaaaaa!" and our bodies thrashed together desperately
completing our mating as pleasure washed over our minds.

   She fell forward on top of me and my legs gave out.  She withdrew and we
faced each other panting.  I said, "Feel better now?"

   Shru-lar said, "Yes.  You're an incredible lay.  Shan-dra is so lucky!"

   We recuperated for a few minutes then dressed.  I had the lavatory
system completely clean me out again since I knew Shan-dra would want to
mount me soon.  When we returned to the lobby, Shan-dra said, "Shru-lar,
you're smiling!" and got out of the receptionist chair.

   Shru-lar said to me, "If Shan-dra will let me have you again sometime,
remember you'll get pumped by these", then bent over on the desk with her
derriere facing me.  I stood there with my mouth hanging open slightly as
she sat in her chair.

   Shan-dra said, "So, who's up for more?" and then she walked in front of
me as we headed to the store room to monitor the action.  I studied her ass
the whole way.

   When we got to the store room I explained to her that I thought we
should watch a recent arrival rather than watch in the middle and she
agreed.  She locked the door and we stripped naked and sat on two adjoining
chairs.

   She said, "Are you ok back there?"

   I said, "Yes.  I was starting to get sore but I've got a lot of ass to
spare.  What shall it be?"

   I handed Shan-dra the control device.  She ran her hand quickly over it
making a blend of colors and moans, then slowed down and had a look.  She
settled on one where an Earth woman with long brown hair was sitting on the
bed with her legs apart and rubbing herself.  She had medium breasts with a
gourd-shape and large areolas.  A Glapi woman with the blue hair they can
have came out of the lavatory.

   "Jen-ny, it's going to be all right.  Let me help you relax." The woman
who was apparently Jenny allowed the Glapi to position her face down on the
bed.  The Glapi massaged her shoulders while straddling her thighs.  Jenny
started to look contented.  I checked out her nice medium-sized tush not
too big, not too small, and from the Glapi sitting on her, I could tell it
was also very firm it was totally resisting being compressed by the weight
and barely indented at all when the Glapi kneaded it.  The Glapi had one of
those small and tight figure-eight shaped asses.

   Shan-dra was fascinated.  I reached over and put my hand on her growing
erection and said, "Just wait, it'll get better."

   The Glapi prepared Jenny's hole for a while and Jenny breathed deeply
but seemed ok.  Then the Glapi threw the glove and got off of her.  I
thought Jenny would immediately bend over and spread her legs, but she
didn't.  Instead she faced her partner and they embraced and kissed.  Then
we all saw the Glapi's erection it was huge, about 20 cm long and 8 cm
thick.  Jenny's jaw dropped for a moment.  She couldn't have much Glapi
anatomy knowledge to compare it to but she clearly knew it was large.  She
said, "That's really big...I've never seen a penis that big...will it fit?"
The Glapi said, "Yes, of course."

   Shan-dra said to me, "Wow!  That's way out of the average size range. 
And that Glapi woman has to know it.  Yet she wanted sex so much she was
willing to bring her giant organ here and struggle with someone to get it
in.  Maybe Glapi men find her uncomfortable and don't come back for more."

   I said, "Yeah.  Kind of exciting but glad it's her and not me."

   Jenny said, "I'm scared Shru-lon.  Are you it will fit?" Now we knew the
Glapi's name.

   The Glapi said, "Yes.  Copulation can be intense but people do it all
the time.  Try not to be afraid and focus on relaxing...I'll go slow and
keep you as comfortable as possible."

   Jenny reached out and touched Shru-lon's erection then slowly pulled her
hand back.  "I guess it's ok.  What do you want me to do?"

   Shru-lon said, "Get on your hands and knees."

   While Jenny slowly complied and Shru-lon rubbed her to calm her down, I
asked Shan-dra, "Have you ever lied to get sex?"

   "Yes.  I think anyone with a penis will do anything to get it into a
partner...it feels too good and the urge is so strong...."

   Shru-lon was kneeling behind Jenny and pushing the head of her penis
against Jenny's anus.  "Relax Jen-ny."

   Jenny said, "I'm trying.  I can't open up.  Hurts a little."

   Shru-lon pushed slowly forward.  As the head popped past Jenny's
sphincters, she had a look of surprise and pain and said, "Ouuuuch.  Take
it out!  Take it out!"

   Shru-lon pulled her penis out of Jenny and rubbed her back to try to
reassure and calm her.

   Jenny said, "Can't we just use my vagina?  I've gotten some pretty big
ones in there ok."

   Shan-dra and I both giggled.

   Shru-lon said, "No.  There's something about the membranes in the rectum
that makes it possible for the right material to be absorbed.  Did you do
anything to help get larger penises into you?"

   Jenny said, "I got on top and lowered myself that way I could control
the entry and work it in."

   Shru-lon said, "Let's try that now."

   They separated and Shru-lon lay down next to Jenny.  Her erection looked
huge and she held the base so it stood straight up.  Jenny crouched over
her and straddled Shru-lon facing backwards.  I was sure Shru-lon was
enjoying this visually.  Jenny began lowering herself.  The tip touched her
anus and she grimaced but then continued lowering herself.  She looked like
she was straining.

   Shru-lon said, "Bear down like you were trying to push out that makes
the muscles take it in more easily."

   Jenny began to slide down.  From the headboard view, we saw her anus
stretching to accommodate Shru-lon's organ.  She took deep breaths and made
long soft moans while breathing out,
"Ahh..hhh...hhh...hhh...hhh..hhh...mmm...hhhh...ahhh." She was doing it! 
She stopped after going all the way down.  She was sweating and her face
had a look of intense concentration.

   Jenny stayed still and rubbed her clitoris.  Her face began to relax. 
Shru-lon said, "That's great, how do you feel?"

   "Stretched.  Really stretched.  My body is urging me to expel the
intruder.  I feel like I'm sitting on a fence pole."

   "Does it hurt?"

   "A little.  It's not much normal pain though it's more like fullness and
alarm.  Maybe a little overstretching.  How are you?"

   Shru-lon was behind Jenny's back, so Jenny couldn't see the look of
pleasure on her face.  "Feels good...I don't want to hurt you...being
inside you satisfies an urge for me and I feel a little guilty...."

   Jenny said, "It's ok for you to enjoy this...I'm going to try to move
now...please don't hold back...let yourself go when you can."

   She slowly raised herself a little and then slid back down,
"Huuuuh...ohhhhhhhhhh...."

   I grabbed Shan-dra's erection and stroked while we watched.

   Jenny began to move further with each stroke.  Shru-lon at first tried
to stay quiet out of respect for Jenny but they were soon grunting and
groaning together.  I could pick out Jenny grunting "Huuuuu...ohhhhhhhh"
each time she went up and down.  Shru-lon was enjoying Jenny's work and
moaned "Oooooooohhhhhh...ahhhhhhhh...yeahhhhhhhhhh."

   I wondered what it would be like to be Jenny.  The fantasy of having to
accommodate a large penis was exciting.  I envied Jenny.  I asked Shan-dra,
"Do you ever wish you had a tool like that?"

   Shan-dra said, "No.  Even with a normal one it's hard to get a man to
let you put it up his ass.  I think that's why evolution made it feel so
good the first time you do it because you hear it's good or you like his
ass and that gets you over the strangeness of pushing your urinary tube up
someone's rectum, but once you know how it feels, you want to do it again
and again.  She probably has trouble getting men to do it more than once."

   I suggested, "I think she should work at finding someone who
specifically likes a big one."

   Shan-dra said, "True...but probably rare.  Just the need to normally
keep the sphincters closed means they can only be so loose...she'd have to
either find someone worn out or get lucky and find someone with an unusual
ability to relax."

   Jenny was tiring out but continued to grind on Shru-lon.  She said, "I'm
getting tired and sore, are you able to let go?"

   Shru-lon said, "I'm used to hanging onto someone's ass while doing the
pushing.  Now that you've relaxed a lot, would it be ok for me to get on
you from behind to finish?"

   Jenny said, "Yes" and removed herself from Shru-lon's penis.  She looked
relieved but then she went right from her straddling position to all fours
without even turning to look at Shru-lon in-between.  Shru-lon had a look
of joy on her face and practically mugged for the hidden cameras as she
moved forward and began to re-enter Jenny.  The Earth woman knew what to
do. As she was penetrated, Jenny let out a loud groan,
"Uhhhhhhhhhhhhhhhhhhhhhh!" and that excited her partner.  Shru-lon sighed
with relief but quickly began to thrust inside Jenny, who put on a show,
"Ohhhhhhhhh, ahhhhhhhh, I can't believe you fit inside me, ahhhhhhhhh!  Oh!
Oh!"

   I could see that Shru-lon was getting close.  She started holding
herself inside for a moment on each in-stroke and her eyes were closed like
she was in a trance.  Jenny went on making noise, "Ohhhhhhhhh!  Ah ah ah!
Give it to me!  Stuff me!  Ahhhhhhhh!" Shru-lon pumped her big shaft into
Jenny faster than I thought Jenny could take.  I saw her begin kneading
Jenny's ass.  Then she seized Jenny hard, threw her head back and hips
forward, and yelled as she began filling Jenny, "Ahhhhhhhhhhhhhhhhhhhhhh!
Ahhhhhhhhhhhhh!  Ahhhhhhhhhhhhh!" Jenny's orgasm began and caused her
sphincters to contract, making her feel waves of intense pleasure-pain that
made her punctuate her moans with a sharp noise, "Ahhhhhhhh nggg ahhhhhhhh
nggg ahhhhhhhh nggg!"

   When they finished, Shru-lon slowly and gently withdrew from Jenny and
asked, "Are you ok?"

   Jenny said, "Yes.  Sore.  But what an intense orgasm...I've never had
one like it.  Do you think maybe sometime...?"

   Shan-dra said, "Looks like Jenny's found a new friend."

   I laughed.  "What do you want to do now?  The dance is probably winding
down."

   "Yes.  Let's get out of here."

   Shru-lar still had a grin on her face as I followed Shan-dra out.  We
checked the tally, 25 completed couplings with a last round entering the
rooms soon.  Right on schedule!

   We went down the street to a darkened park.  I saw occasional strobe
light flashes.  I could hear faint moans as we approached.  I followed
Shan-dra's sexy wiggle and could hear men and women crying out in the dark,
one big "Uhhhhhhh uhhhhhhhhh uhhhhhhhhhhhhh!" that sounded almost like a
sexual version of crowd murmur.  I saw couples in mating postures
silhouetted when the light flashed.  Shan-dra reached back and held my hand
and led me off the path.

   Shan-dra said, sit down, and I did.  She started kissing me and rubbing
my crotch and running her hands over my backside.  I said, "This is some
kind of public park, isn't it?"

   "Yes.  We're outside surrounded by plants.  Don't worry; there aren't
any parasites in the undergrowth.  Feels nice and soft, doesn't it?"

   "Yes, it does.  Almost as if it was meant for sleeping...like a bed...."

   Shan-dra said, "Yup" and began undressing me.

   I said, "Wait...here?  Someone could see us!  Those flashing lights!"

   "They might, but it's dark and everyone knows not to approach too
closely.  Glapis like this park because it gives you the feeling of having
sex in a public place without much real risk of being seen or making anyone
else uncomfortable.  We can all be heard, and sort of seen when the light
flashes, but it's too hard to really see."

   "Are you ever going to run out of ways to have sex on this planet?"

   "Probably, but not for a long time...so it will always be new and
exciting."

   I helped her with my clothes.  I felt myself relaxing down there. 
That's what arousal and anticipation of sex caused in me now.  After
Shan-dra removed her own clothes, I put my arms around her to pull her to
me and sucked first one nipple and then the other.

   She produced a packet from a pouch in her crotch flap and said, "Here's
a little extra lubricant...squirt it in and then carefully place the
wrapper underneath the border tree there."

   I asked, "Isn't that littering?"

   "No.  The park has cleaner systems that will have it gone by morning."

   I felt better now.  The package contained a flat-shaped tube with a
small nozzle at one end.  It was warm from being stored in her pants.  I
lay down on my side and raised one leg slightly to make it easier, inserted
the tip, and squeezed out the contents.  Then I placed it at the base of
one of the trees like Shan-dra said to do.  She was so considerate to have
thought to bring that for me.

   Shan-dra said, "Listen."

   I heard moans all around us.  Some of effort, some of pleasure, even a
little discomfort or surprise.  Far off I heard the unmistakable cry of a
man yelling in ecstasy immediately followed by a woman wailing and then
going silent.

   I asked, "Does anyone do the return out here?"

   "Sounded like that.  It's less likely outdoors due to the
incapacitation, but with a partner you trust it might be very exciting."

   I was worried about doing it in semi-public, but I was turned on too.  I
reached out to stroke her erection and wanted the relief it could give. 
Shan-dra sighed in pleasure.  I wanted to give her more pleasure.  She was
so nice.  Then I thought about her tush so tight, so round, the way it
flexed proudly when she moved...I wanted her inside me.

   I got down on all fours and presenting my spread rear to her.  The light
flashed.  Shan-dra quickly but gently penetrated me all the way.  I inhaled
sharply then sighed as I relaxed and let the breath out.  I said, "Yes, oh,
yes!"

   Shan-dra said, "Ohhhhhhhh" and began to move inside me.  It felt so
natural now.  So good.  So right.  I had wasted the wonderful nerves in my
anus all these years.

   I said, "That's it...so good...having you inside me again...."

   Shan-dra said, "Feels so good being inside you again.  Unnnhhhhhh
Unnnnhhhhhh!  I really appreciate that you let me have your ass...despite
what you've seen it can be difficult to find a man ready for sex."

   I asked, "How can that be?" as we heard a woman cry out.

   "Even though having a woman penetrate his ass is normal for a Glapi man,
there's the whole cycle to consider.  A lot of the time there isn't going
to be a return and they know it.  The woman usually doesn't lie, since that
would only work once, but she tells him honestly that she is unlikely to
allow a return she just wants to get off."

   "Doesn't the hormone build-up make men crazy if they stop?"

   "No.  It's rather mild actually.  It makes the male more receptive to
further couplings than to the first but it's not strong enough to make him
desperate to get the woman to mount him."

   She kept thrusting in me.  I knew by now how much talking about sex
during sex delighted her, so I continued, "So if all he gets is to
ejaculate on the sheets, why doesn't he just masturbate to get his fluids
out and save himself the effort of taking a penis into his anus?"

   "Sometimes men do...for a while...but all of the men on the planet today
are the descendants of horny men who did let a woman penetrate them, and
not only that, but they pleased the woman enough that she kept doing it
long enough to complete the return.  You really please me."

   She pumped me powerfully.  I moaned, "Unnnhhhhh glad I please you.  That
return we did was the most intense orgasm I have ever had.  I would think
men would take their chances to try to experience that."

   "Some do.  But a lot of the time the woman just doesn't want to do it.
Sometimes she changes her mind, or loses control, and in that case only a
man who's been putting out for her has a chance of fertilizing her...so men
don't always refuse even when the woman states that she doesn't plan to
complete the return."

   "Are the women at least honest about it?  Oh, ummmmmmmmmmmm...ahhhhh."

   "Usually.  The urge to put your penis up a man's ass is overwhelming
though.  A woman might do what she had to do to at least get it in there a
few times.  The men know this so they can be coy, particularly since even
though this act is normal, there can be some initial discomfort if he's
with a new partner or hasn't had sex in a while."

   "I have to admit, at first I was motivated by the prospect of getting
into your return slot.  But now...it feels so good just to be with you...to
know it's you inside me...."

   Shan-dra said, "That's another thing...uhhhhhhhhh...there's even more
initial discomfort when the return starts so a woman doesn't do it
casually. Once you're doing the return though, you feel an overwhelming
urge to finish it feels unbelievably good to a woman when she orgasms that
way."

   "Oh...yes, like that...don't stop...keep going while you talk...oh oh
oh...So the men sort of like getting it up the ass but they don't need it
as badly as the women want to give it to them?"

   A woman wailed and then a man groaned.  The lights kept flashing at
random intervals.

   Shan-dra was very excited.  "Uhhhhh...yes...that's it.  The return is
what everyone really wants most, but the women are very selective about
that.  Meanwhile, a man's sphincters feel a lot better than your hand...a
lot better.  You look at their butts on the street and you think about the
pleasure hidden between the cheeks."

   "So why do men do it at all when they know there won't be a return?"

   "That horny ancestors thing again.  They try to satisfy themselves by
stroking with their hands.  They use dildos to try to imitate natural
penetration...."

   She pushed all the way in and then continued, "Instinct makes the men
keep themselves attractive they probably don't even realize that part. 
Sooner or later a woman comes along and he admires her buttocks.  His body
will eventually betray him, but he can keep it in check for a while.  Her
courtship will overcome his resistance to letting her mount him.  Maybe the
woman is very nice, maybe she's very good at using her ass to overwhelm
him, or maybe it's just been too long since he had real sex and he craves
it."

   I said, "Ohhhhh...you were all three...you're so nice...you have an
irresistible tush I'm always thinking about it...you're pumping me with it
now...oh...and it had been way too long since I had sex of any kind."

   We heard a man and woman cry out in relief together.

   Shan-dra said, "I really like your ass too.  My body makes me feel good
when I look, or touch, or push against it during sex...."

   "I'm glad that you enjoy my ass.  It feels very special to be able to be
valued for that...it's like being a prize...I like being able to give you
what your body needs."

   She said, "I want to come inside you right now."

   "Uh huh huh...yes...I want you to drain yourself into me...move your
juices into my body so you feel better...ohhhhhhhhh ohhhhhhhhhh
ohhhhhhhhh!"

   She clamped down on me and for a moment began to silently fill me.  Then
we both yelled together, "Ahhhhhhhhhhhhhhhhhhh!  Ohhhhhhmmmmmmffff! 
Ahhhhhhhhhhhhhh!"

   We hugged and kissed on the grass as we recuperated.

   I said, "They heard us, didn't they?"

   Shan-dra said, "Yes.  Exciting, isn't it?  But they don't know who we
are and they won't try to find out."

   I asked, "What do I do about the leakage?"

   "Just deal with it for now and we'll get you cleaned up at my place."

   We put our clothes back on and walked to her flat holding hands and
kissing along the way.  I cleaned up and we softly kissed as we fell
asleep.

   We slept late.  The trans-drive project was obviously on hold while we
completed this more time-sensitive one, and everyone would need to rest
until the afternoon briefings.

   Over a breakfast of starchy roots and cooked fruit paste, I asked
Shan-dra to tell me about her past relationships.  "Have you had many men?"

   Shan-dra actually paused for a moment, delighting me, and then smiled
and said, "What counts as many?"

   I said, "I'm not sure.  How many men have you done the return with?"

   "Five."

   "That's it?"

   She confirmed that this was all.  "Yes.  Completing the cycle is not an
everyday event.  It helps make sure that almost the entire Glapi population
is attractive, smart, and nice.  Every once in a while resentment about not
getting enough sex or getting the right sex causes a problem, but both men
and women are naturally selective about breeding.  Birth control doesn't
change millennia of evolution where the return meant pregnancy, so women
are instinctively cautious about that last step."

   I had to know.  "How many men have you penetrated?"

   "About 20."

   I must have looked judgmental.

   She said, "It's normal for a lot of it to only get to the first phase.
Men have needs; women have needs, so you put the parts together and try to
get what relief you can."

   "I understand.  It must feel really good to push into a tight anus while
knowing you're going into a man's body."

   "Yes.  It's incredible.  Most women will do it as much as they can."

   I asked, "Have you ever tried it the other way around?"

   Shan-dra said, "No.  That's what lesbians do, at least when they're not
carefully working it into the return slot or just sucking each other."

   I pointed out, "If you let a man into your ass, then aren't you being
attracted to men at the time?"

   She said, "Yes, I suppose that would be true."

   "Maybe we should try it some time.  Then you'd expand your
understanding."

   Shan-dra laughed.  "Expand all right.  Women weren't meant to get it up
the butt though the cleansing and lubricating glands are minimal, about as
useful as nipples on a man."

   "I'm sure the house systems could be persuaded to help."

   She asked, "So, what about you?  Have you ejaculated into many women? 
Oral, anal, or vaginal counts."

   I told her, "Nine."

   "That's all?"

   I said, "I think everyone must think there's a lot more sex going on in
the universe than there really is.  We all want to get off as much as
possible, but our instincts compel us to be selective, otherwise we'd just
be going around humping trees for convenience.  So we only get to mate when
we find a partner who also thinks we'd be a good...fit".

   She laughed.  "So what's the breakdown?"

   I said, "2 oral only...in school...take what you can get. 
Anal...well...none.  I like a fine derriere more than anything, but I never
tried too seriously to get into a woman's back hole and no one ever asked
for it on her own.  Vaginal is the only real sex for humans.  Vaginal feels
like you're making a baby, and if you're not careful; you might in just one
copulation."

   Shan-dra said, "Oh, that's right.  Ewwwwww...."

   I continued, "So anyway, Earth females will be extremely selective,
because that one time could be it and they have to spend years taking care
of the child.  Mitigating that is that Earth females are smaller and their
bodies are designed more purely for reproduction than a Glapi's.  The Earth
woman needs the man more for resources and assistance.  So she will often
try to mate with a man who she thinks will help her to take care of her
offspring.  But Earth females can sometimes be impressed by physical
attraction or caught up in the moment and mate without much promise of
resources."

   "You mean, sometimes she just see a good butt and it's too late?"

   "Sure.  All women are the product of horny ancestors who let a man
ejaculate in them.  Or at least so close to them on the outside that some
sperm made it all the way inside that's rare though, a pregnancy usually
means you've been taking penises into your vagina.  Men, of course, will
pretty much mount any woman who will let them.  Evolution has favored that.
A woman's body requires her to eventually copulate with someone, so a man
never knows and he might as well try whenever there's any chance at all."

   "What makes him want to try in the firstplace?"

   "On Earth, the attraction is about equally divided between the buttocks
and the breasts.  As you know, the human female's breasts are always near
their full size.  Arousal makes the breasts swell noticeably in some, and
of course, they swell when it's time to provide nourishment for the
offspring.  Men closely associate the breasts with women because men only
have vestigial nipples."

   She asked, "That's weird.  Our men like them well enough but it seems so
inefficient to carry advertising at all times and milk structures that
aren't in use.  I would have expected evolution to favor women who could
run from danger better."

   "It might.  Earth women's breasts vary greatly in size, and no one knows
why.  Some are, no offense, smaller than yours.  Others look like they have
a rear end on both sides.  The theory on Earth is that civilization caught
us in the middle of an evolutionary change.  Breasts may actually be copies
of the buttocks intended to be seen when facing the woman.  And certainly,
the source of attraction is as varied as breast size some men are almost
indifferent to buttocks, and some are almost indifferent to breasts.  Most
like both to some degree."

   "And that attraction makes the men try to reproduce?"

   I explained, "Not usually.  It just makes them want to penetrate the
woman.  The more times you ejaculate inside women, the more likely you are
to get a woman pregnant, so evolution favors males who respond to the
reproductive signals of our species.  The sexiness of the female co-evolved
with the interest of the male."

   "So once males expected breasts, females had to have them, and once some
females had them, the other females had to have them too?"

   I said, "Yes."

   Shan-dra asked, "Have you ever mounted an Earth woman with especially
big breasts?"

   "Yes." She was clearly intrigued with the appeal of something she didn't
have.

   "What was her name?"

   "L-Laura."

   "What sex position did you use most?"

   "From behind." I couldn't help remembering how it felt to have sex with
Laura.

   "Did you ever purposely finish from the front so you could look at her
breasts while you ejaculated?"

   "Yes.  I remember her breasts bouncing around and then I squeezed them
between us as I held her to me tightly to transfer my semen into her body."
Shan-dra was obviously getting off on interviewing me so I decided to do my
best.

   "How about the woman with the smallest breasts among your past partners?
What was her name?"

   "Elaine."

   "Did she have a nice ass to make up for it?"

   "No."

   "A pretty face?"

   "No." I pictured Elaine.  "Round and puffy and her nose was too
prominent."

   "Did she have a slot that tasted like your favorite snack food?"

   "No.  And I had to lick Elaine's disgusting slit to get her aroused
enough so she would let me get on her fat jiggling ass to mate."

   Shan-dra made a face and continued, "Did it feel good?"

   "Not as good as this." I kissed Shan-dra.

   She said, "I'm done eating, how about you?"

   "I'm done too."

   "Good.  I wish we could be more spontaneous, but I want you to use the
lavatory and then meet me in the sleeping chamber."

   I looked down and she had a bulge in her pants.  I shivered in
anticipation as I went down the hall to clean and lube myself.  I was only
slightly sore from the previous evening my body was getting used to the
idea of my rectum doubling as a copulatory organ.  My mind had long since
accepted the idea of my being penetrable.

   When I entered the bedroom, Shan-dra said, "Show me how you want it!"

   I felt a delicious twinge of embarrassment as I got down on my hands and
knees with my legs apart.  I felt her press her erection between my
buttocks and against my anus and then stop.

   "So you pushed up against Elaine's big soft saggy butt and inserted your
penis.  Did it feel good?" She put a little pressure against my sphincters.

   "Yes."

   "But she was fat and ugly?"

   "I needed sex.  It had been too long and my body needed relief, any
relief."

   "Did you imagine you were with someone else?" She maintained the
pressure but put her hands on my hips as if lining us up.

   "Yes.  I thought about women I wished I could mate with...about their
asses...I looked up and over Elaine as I began moving and tried to imagine
her vagina was actually one of theirs." Shan-dra kept one hand on my hip
and used one hand to guide her erection.

   "I want you to tell me about a woman you wished you could have mounted
instead of Elaine.  Which one had the best butt of all?"

   "Jean."

   She began to push into me.  I said "Ohhhhhh...ahhhhhhh...ahhhhhhhh".

   "Where did you see her?"

   "She was the receptionist for her brother's biometrics recording
center."

   "What did she look like?" Shan-dra paused with the head pushed hard
against my hole.  I tried to relax.  I wished she would go ahead and take
me.

   "She was short with long curly red hair, a plain face in between round
and oval with expressive features, relatively small breasts of the kind
that are longer over the top to the nipples than on the bottom, a narrow
waist, and a full yet tight bottom that was high but also somewhat
heart-shaped.  She often wore tight white pants that drew attention to her
best feature." As I finished the description she pushed just the head in
and my sphincters were held wide open.

   "You fantasized that you actually had your penis in Jean while you were
inside Elaine?"

   "Yes.  Please...stick it in."

   "Someone else was putting his penis into Jean." She pushed in further
and then stopped just before the head could pop in.  "She took those tight
white pants off, bent over and put that ass of hers up in the air and some
lucky man not only got to see her naked, but also pushed his penis into her
vagina from behind." Shan-dra penetrated me fully as she said it and I
gasped for breath, "Hoooooooooouh." She held me in place for a moment and
sighed, "Aaahhhhhhhh...."

   Shan-dra said, "So you had to imagine sex with Jean while you
desperately pumped Elaine?"

   I said, "Yes...oh oh oh!" as she began to thrust.

   "Someone was really mating with Jean, and when he finished he ejaculated
into her.  He held her beautiful hips and buttocks as hard as he could and
was rewarded with ecstasy as his body tried to make a baby in her!"

   She pumped me while I groaned.  The remembered envy and angst was
driving me crazy.  I wanted it up my ass; the intense sensation was
crowding my mind of feelings of failure and regret.  I sobbed, "uhuhuh
uhuhuh uhuhuh."

   "That's it...let it all out.  Did you want to make a baby in Elaine?"

   "No, I just wanted to come inside a woman."

   "What about towards the end, when you were getting ready to finish, I
bet you instinctively pulled at whatever flesh you could reach and tried to
get inside her as far as you could as the spurts started."

   "Oh, oh, oh!  I did.  I had to.  It felt so good to ejaculate into a
vagina again.  Uhhhhhh hahuh hahuh!"

   "Were you with Jean in your mind at the last instant or with Elaine?"

   "Elaine.  I looked down and saw her huge ass and thick thighs and...I
knew that was all I was getting.  I thought of Jean one last time to push
myself over the edge and then I dug my hands into Elaine's sides where her
waist should have been and pulled her whole ass back against me as I howled
with relief."

   Shan-dra said, "You're with me now.  And I want you, not just anybody.
Your ass drives me wild but you're also smart and fun to be around."

   "Thanks.  I like you very much too.  You're pretty, creative, kind, and
you've got your penis up my ass so I'd better say nice things."

   She gave me a few hard pumps as we both giggled, and then she said, "I
want to give you a nice warm sticky token of my affection now."

   "Yes...uh uh uh!  Go ahead!  Do it!"

   She pushed into me a few more times then held me in place as she shot
her load deep into my rectum and said, "Ahhhhhhhhhh, so good, ahhhhhhhhh!"

   My orgasm washed over me and I forgot all about other women and yelled,
"Shan-dra!  Oh Shan-dra!  Yes!  Ahhhhhhhhhhhhh!  Shan...dra!"

   We cuddled for a while and then I soaked in the hot tub for a while to
reduce any potential soreness I already wanted more sex and I wanted to be
ready.

   Shan-dra said, "We better get dressed and go to the office to finish the
speed-dating details I might still drag you to a lavatory or a store room
but we'll probably get at least some work done."

   We walked hand-in-hand next to each other to the technical complex until
we got to some steps.  Then Shan-dra walked in front of me while I admired
the way her buttocks strained against her shiny green high-waisted pants.

   Shru-lar was already at the reception desk.  She smiled when she saw us
and waved us in.  Shan-dra and I went to the store room and discussed the
speed dating event.

   I said, "Which group should stay put and which should move?"

   "Let's have the Glapis move there are more of them and they'll be
rotating, and that way the Earthling gets a good look at the Glapi's
backside as she leaves."

   "How about the scoring devices should we put pictures on them for easier
selection?"

   Shan-dra said, "Faces with first names?"

   "Yes."

   "We've got the 12 rooms plus 4 small meeting rooms.  Let's skip the
meeting rooms since they're not set up for us to record.  That would allow
12 Earthlings at a time and we can show them 12 Glapis so nobody loses
track.  At five minutes for each meeting plus 2 minutes to change rooms,
that's an hour and 24 minutes.  Add a 15-minute break in the middle and
it's about two hours."

   I pointed out, "During which the sex rooms couldn't be in use."

   "You're right we better get programming the construction system.  How
about we double it to 24 rooms so we can have two sessions at a time?"

   I asked, "Can we set them up for monitoring?"

   "It's a must!"

   I liked the idea.  "And we can even match up the sales pitches to the
copulations we'll know how the couple chose each other and also know if
they chose wisely!"

   Shan-dra and I laughed wickedly.

   She said, "Okay, so let's get to work.  You program the construction and
I'll outline the introductory talks."

   ----End Part 1 of 4

   <1st attachment end>


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