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 ===== TIFFANY IN THE SHOWER ==============

   Like most guys I like to masturbate in the shower from time to time.  I
had just gotten into the shower and lathered up my cock when the bathroom
door opened.  I had forgotten to lock it.  It was my sister Tiffany.

   "I have to pee real bad," she said, excusing herself as she sat down on
the john.

   Since the door to the shower stall was clear glass, Tiff saw me standing
there with my erection in my hand, all lathered up.  I tied to turn away,
and I was really blushing.  I had never been caught before!

   It was real embarrassing, and unexpected.  I guess Tiffany was a little
embarrassed, too, but she also had a funny kind of smirk on her face from
catching me masturbating.  She quickly peed and then wiped herself and
buttoned her skirt back up.  I stood in the hot stream of water and began
washing off.

   "Sorry," Tiff said quickly, and hurried out the door.

   I looked down at my cock and it had wilted; suddenly I didn't feeling
like doing it then so I just showered and dried off.

   That night after dinner, Tiff came into my room.

   "Do you always jack off in the shower?" she teased.  She had that same
playful smirk on her face.

   "Sometimes..." I said, kind of pissed off.

   "Oh, come on, I'm only teasing." she grinned.  "I know that guys
masturbate all the time.  It's not like it's some big secret we girls
aren't supposed to know!"

   I could never stay mad at Tiff for very long, we're so close; and she's
always seemed so cute to me.  So I ended up forgiving her.  I told her I
didn't finish doing myself anyway, so it didn't count.

   "I really am sorry I spoiled your little party today.  I did have to pee
real bad." she laughed.

   "Well, it's Ok, I guess." I tried to smile and get over my
embarrassment.

   "Besides," she said, bending down to pat my crotch, "you'll probably
work out your problem tonight, somehow."

   She giggled a little and slipped out of my room.  She was right, I
jacked off in bed.  It was crazy, but I imagined Tiffany being there to see
it.

   A couple of days later I was back in the shower; and I really wanted to
get my rocks off.  I was just getting ready to soap up my cock good when
Tiffany slipped into the bathroom, again.

   She sat down on the toilet, only this time the lid was closed.  She was
wearing a T-shirt and jeans.  She smiled mischievously and look at my limp
cock hanging between my legs as the water ran down.

   "Are you gonna jack off?" she asked.

   "God, Tiff, can't I have any privacy?" I snapped.  "It's none of your
goddamn business!"

   "Aw come on," she said.  There was a subtle, sexy look on her face as
she stared back at me.  "I wanna watch you play with yourself!  I think it
would be cool!"

   "It's, ...kind of a private thing." I said.  "I don't think I could even
get a hard-on with you watching.  Besides, you're my sister.  Isn't it like
...incest of something?"

   "Incest is fucking your sister," she said.  She smiled through the glass
door and moved her hands down to the hem of her T-shirt.  "But I think I
know how to make you hard...."

   Incredibly, my sister lifted up the bottom of her T-shirt until it was
revealing the curved white undersides of her breasts.  She wasn't wearing a
bra!  I couldn't believe it.  This was almost exactly like I had fantasized
when I had jacked off in bed.

   "Wanna look at my titties?" she said in a teasing voice, moving her
T-shirt higher.  "Even if I am your sister, the sight of these ought to
make you get a hard on!"

   Man, was she right!  Once in a while I had accidentally seen Tiffany
naked, but not lately.  As she pulled her T-shirt up over her tits, I was
shocked to see how beautiful they really were.  She had nice round 36C
titties that she showed off to me, holding her T-shirt so that it rode over
the tops of her mammaries.  She had small, pink nipples about the size of
the tip of my little finger.

   It was crazy!  My own sister was sitting there on the toilet, teasing me
with her naked tits!  Despite myself I felt my cock begin to stiffen. 
Tiff's little nipples were getting hard, too.  It didn't hurt that she
rolled them between her thumbs and fingers, tweaking them sensuously.

   "Please," she sighed, pinching the tips of her nipples.  "Let me see you
play with yourself.  I really want to see you do it.  It's fucking sexy!"

   There was way no way to hide the way my cock was sticking out from
between my legs now; and I guess it didn't really matter!  I found myself
wanting to jack off in front of my sister.  I wanted to see Tiffany play
with her titties while I came!  It might have been wrong or immoral, but I
didn't really stop to think about it.

   I began to fondle my eight-inch rod, stroking and massaging it as Tiff
watched.  Her eyes were wide in curiosity and I guess she was aroused by
the sight of her naked brother jacking off.  She watched every movement of
my hands as I slid them over my throbbing prick.

   "This is crazy!" I muttered.  But my cock was hard now, and it felt real
good to stroke my shaft while Tiffany watched and manipulated her titties.
She sat there in front of the shower door and enjoyed the show.

   "Yeah, but its fun!" she sighed.  Her eyes kind of narrowed in erotic
pleasure as she looked across to my cock.  "Ooooo, your's is so hard now!
I'm glad you like lookin' at my tits!"

   Before I knew it, I was jacking off furiously while my sister watched in
fascination.

   "ohhh yeah, unnnn!" I groaned, moving my hand faster and faster up and
down the soap-covered length of my penis.

   "Are you cumming?!" Tiff asked excitedly.  She had a real look of
excitement as she watched.  "Are you gonna cum?!"

   I nodded, groaning as I fisted myself.  "Uh huh!"

   "Oh, wow!" Tiffy said.  "Oh, wow!"

   I shot cum out, letting it splatter against the glass door, sort of
aiming it toward Tiffany as I came.  The milky gunk dripped slowly down the
glass until the shower spray hit it and washed it away.

   "Ohhh, how neat!  How sexy!" Tiff cried.  Fascinated, she watched me cum
and play with my cock until my orgasm was over.  Then she looked lovingly
up at me.  It was obvious that she was thrilled ...  and aroused.

   "Thanks," she said.  "I've always wanted to see a guy do that!  It
looked like you really enjoyed it!  It really is a sexy thing.  It's a
turn-on for a girl to watch...."

   In a few seconds she left the bathroom.  I found myself wondering if she
was going to go masturbate, herself.

   In the next week Tiffany snuck into the bathroom almost every time I
took a shower.  It got to be a little ritual with us.  I would wait until
we were both home from work in the evening, and our parents were off
watching TV or something, then I'd head for the shower.  She would come in
and show me her titties and stare fascinated while I jacked off for her. 
It might have been obscene, but we were both enjoying our secret little
nasty game.  Since we weren't touching each other, I figured it was
harmless.

   Then one evening I was expecting Tiff to come in and watch after I got
into the shower.  My cock was already jerking to hardness in anticipation
of another jack-off session.  And I loved being a sort of "exhibitionist"
to my voyeur sister; it was erotic to have her watch me cum!

   Sure enough, in a minute or so my sister came into the bathroom.  Only
this time it was different.

   Tiffy was wearing a terrycloth bathrobe.  As soon as the door was
locked, she stood in front of the shower door and let the robe fall to the
floor.  She was naked!

   I stared at my sister, appreciating how beautiful she was.  Her long
dark hair hung halfway down her back.  Her legs were shapely, and her body
was really sexy.  I stared first at the dark furry patch of her muff, then
at her titties, bare and full, jiggling loosely as she reached out and
opened the shower door.

   "Mind if I join you?  she asked.

   I was shocked, but really happy.  Tiff was naked, and got in the shower
with me!  I moved over, sharing the stream of hot water squirting out of
the shower head.

   "Why don't you do it," she sighed, tossing her long wet hair back off
her face.  "Jack off!"

   My cock was already hard and throbbing.  I knew I would cum really
quickly just from being next to the beautiful naked girl sharing the shower
with me.  I began to masturbate.

   It surprised me but Tiffany started to masturbate, too!  My sister
spread her legs just a little as she stood in front of me in the shower. 
Her hand went down between her legs and I knew she was finger-fucking
herself!

   We were just a couple of inches apart, almost touching our bodies
against each other.  Then her nipples gently grazed against my chest as we
stood in the warm stream of water and masturbated.

   "Oh, god, Bryan," she sighed, "this is so fucking good!"

   I groaned, and nodded, trying to keep from shooting my wad right then.
Tiff's nipples were stiff as they stabbed against my skin.  My cock was
brushing against her bellybutton as I fisted myself.  I wanted to stick my
cock into her little navel and cum!

   "This is dangerous!" I said guiltily.  "Mom and Dad ...."

   "They're next door," she said quickly.  She was almost panting as she
fingered her wet pussy.  "Nobody's gonna know!  Relax and enjoy!"

   We stood together and jacked off.  I was going crazy from the pleasure
of feeling my naked sister close to me in the shower as I beat my meat It
was erotic to watch the jiggling motion of her arm as she did nasty things
to her pussy, too.

   Pretty soon I had to cum, and Tiffany loved it when I shot my load out
onto her thigh.  It must have turned her on, cause she kind of winced and
moaned a little and began jiggling her fingers into her pussy really fast.
After a minute she rinsed my cum off her leg, stepped out of the shower and
dried off.  She left the bathroom without saying anything else.

   Tiffany decided to keep our nasty little game going, and several times
the next week she got into the shower with me and we jacked off together. I
told her I wanted to put the tip of my cock in her bellybutton when I came,
and she just moaned and let me fill her little navel with cum the next
time.

   I got so used to Tiffany sneaking into the shower with me and jacking
off that I was caught by surprise the next time.  We were both real aroused
and going at it pretty good, I was jacking my cock off, resting the tip
against her stomach.  Tiff suddenly reached out her hand and slipped it
around my waist, pulling my body to hers.  She mashed her wet tits against
me.

   "I wanna feel your body while we do this!"

   "Ohhh, god, Tiff," I moaned, "I was afraid we'd have to go farther, but
you feel so good."

   "Yeah," she sighed, breathlessly.  "You do too!  Lets jack off together
fast and cum right now, I'm so horny!"

   My cock was now slipping out of the opening in the top of my fist and
bumping against Tiff's flat white belly as I jacked off.  I slid my arm
around her shoulders as held her close as my rod began to quiver.  Tiff was
trembling, even though the water was steaming hot.

   "Unnng!" I groaned.  "I'm about to cum already!  You really got me
turned on this way!"

   Tiffany just moaned sexily.

   "I can make it even better." Looking up into my eyes she gave me a sexy
smile.  "Let me do it...."

   Unbelievably, her hand came away from my waist and dropped down until it
found my cock.  She brushed my fingers away and curled her own hand around
my shaft, pressing her body tightly to mine so that I was leaning back
against the warm wet tiles in the shower and letting her fondle my aching
prick.  My sister started jacking me off!  I had dreamed about this, but I
had also been scared it might actually happen, too.  I realized that since
the first time Tiffy had watched me masturbate, we had been getting more
and more out of control!  It was no longer just a harmless little game!

   "Ohhh, god, Tiffany...." I began, and then held her in my arms and let
her hand do what she wanted.

   "My titties," she demanded.  "do my titties!"

   I cupped her soft tits, making her groan in pleasure as I fondled and
played with them.

   Tiff's hand moved up and down my rod, her other hand was still buried in
her crotch, teasing her pussy.

   I slid my hand down her arm, feeling my way between her legs.

   "Can I?" I asked.

   "Yes!" she said eagerly "God, yes!  I want you to!"

   I pulled her hand away and slid my finger inside her warm cunt, feeling
the slick juices invite me to play.

   "Ohhhhhh," she moaned.  "Ohhh yeah!"

   I began sliding my finger in and out of her pussy.  Tiffany groaned a
little more and began bouncing and gently undulating on my hand as I
masturbated her.  Her fist went faster and faster on my rod.

   "Now!" I said, "Aww, I'm gonna cum!  You're making me cum!"

   Tiff just squealed in pleasure and lifted her face to mine.  The next
thing I knew we were kissing passionately in the shower, our tongues
exploring each other's mouth.  We frenched and jacked each other off,
letting the hot water flood over our naked bodies.  She was my sister, but
she felt and tasted so good, I didn't care anymore.  Nothing that we were
doing could be wrong if it felt this great, I told myself.

   "Ummmmmmmm!" I moaned into my sister's open mouth.  The next thing I
knew my cock was spurting warm sticky cum into Tiffany's hand.  She smeared
it along my shaft and clung to me, plunging her tongue into my mouth
wickedly.  She was moaning in pleasure just like I was, feeling my cum
spurt onto her fingers.  I felt her trembling all over and then her pussy
was spasming and clenching around my middle finger.  I knew she was
orgasming.  The water sprayed all over use as we swayed together.

   We stayed that way, touching each other's naked sex organs until the
water turned cold, and then we got out and dried each other off, spending
alot of time touching and fondling.  Neither of us said anything about the
exquisite, nasty thing we had just done together.  I guess we wore both
overwhelmed at what had happened, and how good it had felt.  Tiffany
slipped out of the bathroom and left me standing alone with my limp,
satisfied cock still tingling from her touch.

   {While our hero is savoring his feelings,, it's a good time to remind
you that if you received this story anywhere but from the ASSTR website, it
has been stolen.  Such thievery hurts your ability to get more stories, and
my ability to post more.  Please report this theft to me at sylvarrh at
earthlink dot net or to the ASSTR administrators, I'll send you a quick
flash story in appreciation.  Now let's see what kind of trouble Tiffany
can get them into ...} That night I couldn't quit thinking about how crazy
and wonderful it had been.  As I remembered Tiffany - wet and naked in the
shower, with our hands between each other's legs, I got a hard-on.  I knew
we had to stop doing those incestuous things in the shower, and I promised
myself I'd quit as soon as I could think of a nice way to tell her.  But I
still needed to jack off and fantasize about my sister.

   I rolled over on my back and reached down to play with my cock.

   "Move over." Tiffany whispered, sneaking into my darkened bedroom. 
Quickly she was under the sheets with me and snuggling up close.  She felt
so good!  In about two seconds she slipped out of the little silk teddy she
was wearing and slid nakedly along my body.

   "oooooo," she sighed, feeling between my legs.  "You're already hard!"

   Tiff put her fingers around my cock and gently stroked and manipulated
it as I slid my hands over her soft skin.  I began touching and exploring
her body like I had dreamed of doing!

   She put her lips to my ear and began whispering.

   "I figured it was time we moved this out of the bathroom." she whispered
huskily.  Her hand was gently tugging my cock rhythmically.  "Nobody will
catch us like this.  Mom and Dad have been asleep a while."

   I didn't know what to think.  I knew we should stop, but Tiffy felt so
good!  I just lay there and let Tiffany play with my cock until I was
trembling in arousal and fondling her sweet titties.

   "Don't you think it's time you sucked my nipples?" she suggested.

   I just forgot anything about how wrong what we were doing was and filled
my mouth with her warm,soft tit-globes.  Tiffany was groaning and feeding
her nipples to me until she was aroused and panting in desire.  "Don't make
me wait any more, Bry.  You know what we both want to do!  Of all the girls
in the world, I'm the one with the pussy just made for your cock!" she
whispered in my ear, kissing it.  "Fuck me!"

   "Sis, this is so wrong," I said, but already I was moving over on top of
her, settling into the saddle she made between her legs as she spread them
and moved under me.  "I want to fuck you, but it's ...  it's incest.  I
could make you pregnant!"

   "Silly, don't worry about that, I'm Ok." she giggled.  "It won't be real
incest if you can't get me pregnant.  I don't care what you call it, just
fuck me!  I've wanted to for so long!  Fuck me now!"

   I didn't worry anymore about it, feeling Tiffany reach down and gently
fit my cock between her swollen pussy lips.  Nothing could be wrong with
making love to my sister if it was this good!

   Tiffany gasped sharply and muffled a cry as I sank my cock down deep
into her vagina.

   "We're fucking!" I whispered.  "We're fucking!  Ohhhh, god your pussy is
wonderful!"

   "See?  It ought to be." she sighed, moving her cunt back and forth under
me as we began to get the rhythm of our forbidden fucking.  "My pussy's a
perfect fit...  oooohhhh shitttt!  Fuck me hard!"

   I stroked into Tiffany, bending my head down to french kiss her fiercely
as my penis slid in and out of her wonderful pussy.  She was right!  Her
cunt was perfect around my cock!

   Since she had already jerked me off earlier, we fucked for a long time.
Otherwise the sweet feel of her slick pussy would have made me cum
immediately.  Tiffany spread her legs on either side of me and arched her
back, fucking up at me as I thrust lovingly down into her again and again.

   "Oooooo, you fuck me so nice.  Your cock fits so good inside me!"
Tiffany said, She was looking up with tears of joy in her eyes as I screwed
her.  "That's what makes it so good between brothers and sisters!  That's
why they don't want us to do it!  It's too fucking good!" "We should have
fucked years ago," Tiffany was groaning, her pussy was spasming around my
hard prick.  "We should have always been fucking each other!" We fucked and
fucked until finally my sister was trembling and involuntarily squeezing
her cunt walls all around my cock in spasm after spasm.  She was cumming!

   "Now, ohhhh, honey, now!" she moaned.  Tiffy wrapped her arms and legs
around me and held on rigidly as I fucked her faster and deeper.

   "Yess, yess, yess!" she chanted with each thrust of my cock.

   Then my balls began to ache and all along my cock shaft stinging little
thrills took over.  I began to cum.

   "Ohhhhhhh, godd yesss" Tiff hissed through gritted teeth, feeling my
sperm squirt into her.  She had a grin of sexual pleasure on her sweet face
as she lifted her ass up to meet my cock.  I slid it deep into her warm
pussy and stayed there.

   I felt spurt after spurt of my hot cum shoot into Tiffy's vagina.  We
stayed locked together, trembling and orgasming for a long wonderful time.

   Then I rolled off of her and lay back on the pillows, stroking her hair
and kissing her passionately.  She played with my sticky-wet, half-hard
cock until she made it hard again by smearing the wet cum and cunt juice
mixture over my cockhead.

   Tiffany climbed on top of me, spreading her legs and centering my prick
between her slit lips.  She groaned as she lowered herself down on my cock.
We both sighed with pleasure as we started up our incestual fucking again.

   We fucked all night long, trying to make up for all the lost time we had
wasted when we could have been fucking each other.

   We still have a lot of catching up to do.  Me and Tiffany still take
secret showers together, and spend as many nights as possible sharing our
brother-sister affair in bed together.  Tiffany believes my prick is just
naturally the right fit for her, and she doesn't worry in the least about
"other people's incest hang-ups".

   ===== the end ====

   The author always appreciates comments from readers.  Contact him
directly at <sylvarrh@earthlink.net>.  All comments will get a "flash"
story in appreciation, only ...  negative comments will get a lousy story.
;-)