Note: This story was dynamically reformatted for online reading convenience.
 
 Tit for Tat by Oblivion

   Chapter 1 ________

   "What's it worth to you?" I asked.

   "I..." Saya's voice cracked as she tried to answer while still trying to
cover her naked body with just her hands.

   "It doesn't matter," was Heather's reply.

   "And what's that supposed to mean," I shot back at my sister.

   "It doesn't matter, you know we'll pay whatever you ask, we have to."

   She was right.  If they wanted this secret kept they would have to pay,
no matter what I asked.  Still...  my sister was still sprawled out on her
bed, legs splayed wide, her slick pussy open.  She hadn't moved at all in
the minutes since I'd opened the door and found Saya with her face planted
in Heather's pussy.

   Then it struck me!

   I had knocked, twice.  That was the rule.  I'd played by the rules.

   Heather's sly grin was all it took for me to shrug off the feelings of
misgivings that had been trying to get me to back off and leave.  She could
have stopped me, and chose not to.

   Saya was sobbing now, hands covering her face, all efforts to hide her
nakedness forgotten.

   I looked pointedly at Heather and shot a glance at Saya.

   Heather nodded her head and gathered Saya into her arms and pulled her
weeping face to her breast.  Saya immediately flung her arms around Heather
like a drowning victim would a life preserver.

   I crossed to Heather's bed and slowly sat next to my sister.

   "Whatever I ask?"

   "Yes."

   "Even..." I asked as I looked down at Saya's lithe form.

   "Yes."

   "Do you have any idea what you're getting the two of you in to?"

   "A little."

   I nodded my head at the girl clinging to Heather.

   "Saya," Heather said softly.

   "I'm sorry," came a strangled reply.

   "What did I tell you?" My sister coaxed the shivering girl.

   "Don't...  don't stop..."

   "and..."

   "I was scared..."

   "Don't stop Saya," my sister said as she pushed Saya's face back towards
her pussy.  "Don't stop until my brother tells you to."

   Saya wiped her face reluctantly and continued to lower herself so she
could start licking Heather's pussy again.  She hesitated twice and each
time Heather nudged her down further.  After the second time Saya sighed
softly and then stuck her tongue out and ran it over my sister's hard clit.

   Heather grunted as the sensation hit her and her fingers entwined in
Saya's hair and pulled the girl's face in closer to her wet cunt.

   "That's my girl..." Heather sighed as Saya went to work in earnest.

   I got up and stood at the end of Heather's bed and watched for several
minutes.  Once Saya was fully involved with her cunt again Heather let her
hands start to wander while she cooed encouragement to the small girl
between her legs.  But Heather's eyes were still on me, a smoky, lustful,
gaze that held no trace of fear or shame.

   Heather's hands found their way to her own nipples and she started
tweaking them, twisting and pinching them and every so often pulling them
taught, lifting the rest of her breasts away from her chest.

   "Oooo..." Heather moaned softly, "that's nice."

   Saya's head bobbed up and down a couple of times in response.

   "Mmmm, Use your fingers too Saya, fuck my pussy."

   Saya moved her right hand up under her head and soon it was joining in
the gentle motions in counter-point with what her tongue was doing.

   I finally decided I'd been watching long enough for Saya to get used to
my presence and moved to the bed and kneeled behind her.  She stooped for
just a second as she felt the bed dip behind her but Heather acted quickly
and reached down and playfully tapped the top of Saya's head.

   "Don't stop, baby," Heather warned.

   I reached over and laid my hand on the back of Saya's knee.  She
twitched a little but kept going, so I lightly slid my fingers up her thigh
to her pussy and started exploring the girl's wet snatch.  Hers wasn't the
first pussy I'd ever touched, but I hadn't had all that many opportunities
either, and never when I'd had such an open invitation.  So I took my time
to get a good look as I explored, sliding my fingers through the wet folds
of her pussy, gently probing and rubbing.

   When I'd had my fill of fingering the girl I got back off the bed and
started taking my clothes off.

   Heather watched me as my clothes came off, still tweaking her nipples.

   When I finally skinned off my briefs she nodded to me and brought both
of her hands back down to Saya's head.

   "Baby," she cooed, "it's time for your first fuck," and I could see her
fingers tighten on Saya's head, holding her in place.

   "Raise your ass," I said as I got back on the bed behind Saya and she
complied, pulling her knees under her torso and lifting her ass off the
bed.

   I settled in behind her and ran both hands over her pert ass, caressing
each globe and leaned in against her without trying to put my cock in yet,
just letting her feel me there behind her.  I pushed hard against her a few
times, shoving her face into Heather's pussy and Heather responded with a
groan each time.  Then I pulled back and with one hand on Saya's ass and
the other guiding my cock into position, put my cock to her up-thrust pussy
and slowly started to shove my cock into the waiting hole.  With the
position she was in there was no chance of missing, I could see exactly
where to go and the sight of my cock at her hole made me shiver.  This
would be my first fuck too.  And I could never have imagined that it would
be like this, I'd always thought it would be some hurried act in a dark
parking lot, just a quick jab and cum then wondering if I'd done it right,
if the girl, whoever she might be, had liked it, or me, or...

   I stopped pushing as I felt the head of my cock slip in and pulled back
until I was just touching the folds around her hole.  Then I ran my cock up
and down her slit a couple of times before finding my place again and
pushing back in, this time going deeper.

   I could hear some muffled moans from Saya as I went deeper each of the
next two times as I repeated the pull out and re-insertion.  The third time
I figured I was wet enough and just kept pushing until my thighs touched
Saya's ass.

   That time Saya raised her head, a definite groan coming from her, before
Heather shoved her face back down.

   "Naughty girl, I said don't stop."

   I looked up from watching my cock slide into the cunt in front of me. 
Heather's face was tense, almost a grimace, her eye's hooded.  Her tone
said she was more than a little exasperated at Saya forgetting her place.

   Looking back down to my own concern I started to pump myself in and out
of Saya's pussy.  It felt good, very good, and I wasn't going to let my
sister take any of the pleasure away from me right then.  So with each
stroke I sped up a bit and I was soon shoving my cock into Saya as hard as
I could, not caring how that affected what Heather might want at the
moment.

   I did hear Heather at some point, I thought it was the sound of pleasure
but couldn't be sure, but it wasn't enough to break my attention from my
cock and the pussy it was in.  But it also didn't take long before I felt
my balls, back and cock tense as the first rush of cum shot into Saya's
pussy.  I pushed my cock hard into her and held it there as the waves of my
orgasm washed over me, nothing else mattered in those moments, just the
burning fire as jets of sperm emptied into her.

   When the moment had passed and my body started to react again I slowly
started pumping Saya's pussy again.  Four, five, strokes later I leaned
back against my heals, my softening cock pulling free.

   "Turn around Saya," Heather said, "clean his cock."

   Saya quickly shuffled around and her mouth quickly found and engulfed my
now soft cock, her tongue working it tentatively at first, then with more
effort.

   Over her back I saw my sister turn over onto her back and slide her head
under Saya's spread legs.  Seconds later I felt Saya's shudder in response
to what my sister must be doing.  She didn't stop though, she kept working
my cock and even started licking my balls as well, all the better to clean
me I guessed.

   "That's enough, Saya," I told her after a few minutes.

   She promptly let my cock fall from her mouth and her head lowered to the
bed.  She was panting hard, her ears and neck were red.  I noticed that
Heather had taken hold of Saya's hands and was holding them to her knees. I
didn't know why, but didn't interfere.

   A few minutes later Saya's head started to turn from side to side, her
breath was becoming ragged and she was straining to get her hands free from
Heather's hold.  But heather didn't let go and held her tight.  Saya
started to moan between gasps for breath and moments later she tensed, her
back, neck and legs showing where muscles tightened and strained, then
after a few more very hard breaths she slumped forward, her face sliding on
the sheets as she fell away from my sister.  I shuffled back to give her
room and almost fell off the bed in the process.

   After regaining my balance I looked at Heather and could see her face
covered with a wet, glistening, sheen of moisture.  She looked very pleased
with herself.

   Heather let out a long sigh and stretched out a hand, pointing.

   "Towel, please, in the nightstand..."

   I got up and went and got the towel and handed it to her.  She took it
and wiped her face before reaching down to wipe her crotch.  I saw her
shudder a couple of times as the towel rubbed her pussy.

   By then Saya had rolled onto one side and was watching the two of us,
her breath finally slowing to near normal.

   Heather tossed her the towel then rolled over herself and sat up on the
side of the bed.

   "Baby," she said, "how many times did you stop after I told you not to?"

   Her tone was so sweet, yet I could sense this was no moment of endearing
post sex banter.

   Saya's face paled.  "F..  F....  Four times, Lady."

   'Lady,' I thought, Hmmm...  I was no stranger to most sexual things,
like most kids these days with access to the internet, I could find just
about anything I was curious about.  If I couldn't get access at home there
was always at least one friend who could.  So the D/s connotation was not
lost on me, not at all, and it matched up with everything else that had
happened so far that evening.

   It was also fueling my own fantasies along those veins.  I'd been
reading stories about bondage and sexual slavery and had a few hundred
images of both hidden away on my computer and phone.  Let's face it, what
young male wouldn't be interested in a willing sex slave or two?  Then
again, as I looked at Saya laying there on Heather's bed, maybe even "not
so willing."

   "And just what are you going to do to pay me back?" Heather asked.

   "Whatever you ask, Lady."

   "Really, whatever I ask...  or whatever you aren't too afraid of?"

   Saya's eyes were flowing with tears now.  "Anything, Lady," she croaked
out, "anything you tell me, anything..."

   Saya was curling up on herself, trying her best to just disappear there
on the bed, her sobs making her shake.

   "Bull shit." Heather practically screamed.  There was no sweetness now.
"Bull shit Saya," her voice a bit calmer now,"bull shit...  if you meant
that you wouldn't be hiding from me right now, you'd be begging me to
punish you, you'd be begging my brother to make you scream too..."

   Heather was losing it herself now too.

   I couldn't help it, my hand seemed like it didn't belong to me as it
slapped my sisters face.

   "Enough, Heather, enough."

   Her face was frozen, a slight reddening starting to wash across the
cheek I'd hit.  I hadn't hit her very hard, just enough to startle her.  I
could see Saya's shocked face out of the corner of my eye.  There was no
fear in her eyes, it was an anger, mixed with confusion that I saw.  But
she was moving now and she almost leapt to Heather's side in her attempt to
get between Heather and I.

   "Don't touch her," Saya whispered as she tried to shield my sister.  The
anger in her eyes was growing yet she also didn't seem to be willing to
offer herself in Heather's place.

   "Well," I started, "I can see why I'm here at least.  When you're both
ready to stop playing your games come find me." I picked up my clothes and
walked out leaving the door wide open.

   Back in my room I put on one of my dress shirts and a pair of nice
slacks, I didn't bother with any underwear, I didn't think I'd need them. I
put on a pair of slip-on shoes and headed out to the back yard.  I had a
few things in mind and wondered how long I'd have to wait before I put them
in action.

   Our family was one of the few land rich, dirt poor farming families left
in the area.  We weren't really all that poor, just in comparison to some
of the other locals that lived in town.  But one of the nice things was
that we did have a lot of land and our back yard was larger than any town
lot by itself.  Right now I was headed for a slightly secluded spot near
the back that had a glider swing and a light pole close enough to keep it
from being very dark.  Even as late as it was there would be no problem of
not being able to see anyone there.  And that was my point, to make sure
what happened next couldn't be hidden.

   My only real concern right then was that I only had about two more hours
before my parents would be home from their night out.  I didn't give me as
much time as I'd like.  I didn't want to risk things but I might not have
any choice.

   Meanwhile I sat back on the glider and relaxed, just pumping the swing
with some gentle pushes with my feet.  I didn't want either of the girls to
think I was anxious at all.  In the end I didn't have to wait all that
long, it was only about twenty minuets before I heard a pair of bare feet
on the path.

   A few moments later I heard Heather's voice.

   "Saya, he's back here,come on."

   She was still in the darkness beyond the light but I knew she had
stopped to wait for Saya.  It wasn't long before a softer, more hesitant,
pair of footsteps could be heard.

   Well,it was time to see how far ahead Heather thought this through.

   Their feet came into view first and it was no surprise that they were
bare, their legs were next and I was pleased that they were bare as well.
When Saya's knees came into view they were still bare and I gave a silent
nod to Heather.  They were now far enough into the pool of light that they
were like ghosts appearing out of the mist and it was obvious that they
were both still naked.  It seemed Heather had done some of my work for me.

   I pulled my phone from my pocket and checked the time.  10:45, I had a
bit over an hour and a half to be safe.  It would have to do I thought.  I
put the phone away and waited as they slowly came towards me.

   "Master," Heather said as she stopped in front of me, "how may we serve
you."

   "Hmm...  interesting turn of events, wouldn't you say?" I returned.

   "Yes Master."

   "Are you both sure this is what you want?"

   "Yes, Master, it is my choice."

   "How about you little baby, is this really what you want?"

   Saya looked more like a dear in the headlights that anything else and
took several moments to reply.

   "Yes, Master, I want this."

   My phone decided to make it's self known at that moment so I pulled it
out again.  It was Mom's cell.

   "Hi mom, what's up?" I said after accepting the call.

   "Not too much, just your dad getting pulled over."

   "Ahh, nothing too serious I hope."

   "Just a warning, Officer Jacobs let us go but we'll have to stay at the
Red Roof tonight.  Dad's has a couple too many and we got escorted here and
since I don't have my license with me..."

   "I get the drift, no problems here, so don't worry.  We'll take care of
the chores so don't be in a hurry in the morning."

   "Thanks son, I'll let your dad sleep it off then.  Make sure the girls
know, Ok.  Oh, and tell them not to stay up too late and that they're to
help with the chores."

   "Will do, mom.  "

   "Well, I'm gonna go check us in then, night, and don't scare the girls
too much over this either."

   "Don't worry, I won't.  Night then and take care."

   I hit the end call button and looked over at my sister.

   "It seems we have more time than I'd hoped for.  Mom and dad are staying
in town tonight."

   "Master, is it trouble?" Heather asked.

   "Not really, just a warning from a cop at a traffic stop, but they won't
be back until sometime tomorrow."

   "Dad wad drinking wasn't he."

   "Yep,but like I said, it's just a warning, so nothing to worry about for
now.  Dad will just have to make sure there isn't a repeat any time soon."
I knew that wouldn't be a problem, dad never drank at home, just on the
nights he and mom went out.T

   Heather hadn't moved during the call but Saya couldn't stop fidgeting.
Her feet were almost dancing on the brick pathway.

   Heather noticed my glance at Saya and whispered to her.

   "Baby, be still."

   It worked as Saya froze.

   I pushed myself up off the swing and stepped over to the two girls.

   "So,you've decided that this is what you want, correct?"

   "Yes Master," they replied, almost in unison.

   "Then it's time for some rules." I said.  "First, this is not how you
will present yourselves to me from now on.  Kneel!"

   Heather had the position mostly right.

   "Baby, spread your knees so they are about a foot apart."

   She complied.

   "Now, both of you lean back and grab the back of your ankles with your
hands." They both moved as instructed and I continued.  "This does two
things, the first is that it raises your pussies so I can see them better
and second it forces your chest out so your tits look nice."

   I took the next few minutes adjusting them both until I was satisfied.
They both accepted my touch with out flinching.

   "This is how you'll present yourselves from now on, whenever we're in
private or I tell you otherwise."

   "Yes Master." Heather acknowledged.

   That also prompted Saya.

   "Yes Master."

   "Saya, if you can't remember your manners you'll force me to punish
you."

   "Yes Master." she replied a little panicked now.

   "That is the second rule, you will always acknowledge my instructions
and commands, do NOT forget that, ever." I put quite a bit of a threat in
that.

   "Yes Master," they both answered.

   "Next, the agreement was that both of you would do anything, is that
correct?"

   "Yes Master", they answered again.

   "For both of you that means you will not question any command I give, no
order, no punishment.  Whatever I ask you will do, period, no hesitation,
no question, excuse, or qualifications.  Is that understood!"

   "Yes master."

   "Next, from now on you will never wear underwear except for the days you
have gym class.  I don't want you to change how you dress for school, wear
whatever you would any other day.  For you Saya, that means you will still
wear the dresses or skirts you already own.  For you Heather it means
you'll still wear your loose, low cut blouses you like so much.  You'll
just have to figure out how to keep yourself from flashing everyone. 
Unless of course, flashing your tits is what you want."

   "Yes Master."

   "On gym days you can wear a bra and panties but after your class you
will leave them off.  How you deal with them is not my problem, clear?"

   "Yes Master."

   "That's the rules for now, I'm keeping things simple to start.  There
will be more rules as I see fit, so you had better make sure you can always
remember whatever it's needed."

   By this time I figured that both of them were probably getting very sore
knees.

   "Alright my little slaves, stand."

   Both of them struggled a bit to make stiff knees straighten out so the
could stand.  I could see the dirt and pock marks from the bricks on their
skin.

   I moved back to the swing and motioned them to follow me.  Once I was
there...

   "Heather, take my pants off and fold them.  Saya, just stand there for
now."

   "Yes Master." They replied.

   Heather figured out pretty quickly that the only real way to get my
pants off was to get back down on her knees.  Once there she went to work,
first on the zipper, then the button.  When the button came lose my hard
cock dropped forward enough to startle her but not actually hit her.  She
couldn't help but giggle a little.  I ignored it.

   Once she had my pants off me I sat on the swing but kept my hips close
to the front of the seat.  Heather had my pants folded by then and I told
her to fold them one more time then place them between my feet.

   "Saya, come sit on my lap and put your legs outside of mine."

   "Yes Master."

   She was a little awkward but managed in the end with me turning her
around as she tried to face me.  I realized I hadn't told her which way to
face and just patted her on the head.  When she did settle herself down I
took my cock and pushed it forward so she was sitting on the upper length.

   "Heather, kneel on my pants and start licking Saya's cunt."

   "Yes Master."

   Once down she went to work on Saya's spread slit and I moved my cock out
of her way as necessary.  I didn't want to cum too soon.

   Saya was intensely watching her mistress lick and suck her pussy and
getting into it.  So I gave her a soft tap on her cheek.  It did the trick
and broke her concentration.  By then I figured she was wet enough and
pushed Heather's head back the lifted Saya up until my cock was standing up
straight again.

   "Now, Heather, guide my cock into Saya's pussy as I let her down.  Once
I'm all the way in you can go back to sucking your little toy and make her
cum."

   "Yes, Master!"

   She was apparently very happy with those instructions.

   With Saya impaled on my cock I pulled her against my chest and told her
to put her hands behind my neck and leave them there until I told her to
stop, then got her pumping herself up and down on me.  I knew she couldn't
keep it up for long but I wanted her to struggle.  When she would stop I'd
slap a tit or her belly, a few times one of her thighs.  Meanwhile Heather
was having fun working Saya's clit and she would sometimes suck on a tit or
belly always making sure her head was out of my way whenever Saya would
stop humping me.

   With all the stopping and starting and discomfort it took me almost half
an hour to cum, but when I did it seemed like it was at least a pint,
though I knew better, it just felt that way.

   I didn't need to tell Heather to pull my cock out of Saya and clean both
me and the cute pussy in front of her.  She obviously enjoyed it.

   Once Heather was done I let Saya stop too and got her back on her feet,
she was a bit wobbly still.

   "Now, let's go," I said and started towards the house.

   Heather was giving Saya some support as we started but only for the
first fifty feet or so, then see made the girl make her own way.

   I came to the spot where the path crossed another that came from the
sides and turned onto the one to the left.  I heard Heather's sharp intake
of breath but ignored it.

   Soon we were passing the kitchen garden and Saya started to figure out
where we were headed.  I heard a groan escape her lips.

   A few dozen yards further I took the cut off that led to the front of
the house.  Heather didn't even slow but Saya did.  Heather took charge and
grabbed Saya's hand and pulled her forward, keeping up with me.

   When we passed the corner of the house into the front yard Heather had
to pull a little harder.

   "Saya," I said.  "Just what does 'anything' mean?"

   It was almost as if I had slapped her, her head snaped back, her mouth
gaped open and tears stated to flow.  "I...  I...  I..."

   I stopped as Heather kept pulling Saya forward until I could take Saya's
hand instead.

   "Heather, go to the shed and bring me some rope."

   She took off as fast as she could without breaking into a run that would
most cerianly cut up and bruise her bare feet.  I took hold of Saya's waist
and hauled her upperbody over my shoulder in a fireman's carry and walked
out to the road that passed our home.  The road wasn't busy by any means
but there were other homes and even a couple housing tracts a couple miles
down.  There was one light pole at our driveway and across the drive from
it was our mailbox.  It was a variation on a country standard, a six by six
post jutting up out of the ground with a cross bar sticking out towards the
road about two feet, mailbox on top.  This one also had two diagonal
supports to keep the post vertical in the face of the snow plows in the
winter.

   Saya had been limp as she rode on my shoulder and even as I lifted her
back down on her feet.  By then I heard the slap, slap of heather's feet
and smiled.

   Saya cowered a bit seeing my smile.

   "Don't move," I whispered in the frightened girls ear as I took my shirt
off and started folding it.  I wanted a small, dense bundle and soon had
it. I placed it over the pull for opening the mailbox then pulled the girl
in front of it turning her to face the road.

   By then I could see Heather's bouncing tits as she came, panting, up to
me and handed me the rope.  It was an old, work softened length about
thirty to forty feet long, more than enough for what I had in mind.

   Moments later I had Saya's hands tied together behind her back and then
pulled her arms back and tied them along the top of the mailbox to the main
post.  A couple wraps around the post secured her.  Then I looped the rest
down to one of the diagonals secured it and pulled her ankle back until her
foot was raised enough to keep het on the ball of her foot.  I tied it
there and then worked the rope around and did the same to her other foot.

   The result left Saya mostly spread eagle facing the road.  Her arms
stretched back pulled her tiny tits tight making them almost disappear
while her spread feet did nothing to hide her pussy from any car that might
pass.

   "So, little slut, is this "anything?"

   Tears were running down her face, snot was running over her lips and
down her chin.  Her torso was pushed out, almost like an invitation.

   "Just how long do you think I should leave you here?"

   She just stared at me through tear filled eyes.

   I turned and walked away.

   Heather followed me as I went up the steps to the front door and I
pulled the screen door open and held it for her.  She opened the front door
and stepped in, I didn't follow.  I pulled the front door closed then let
the screen door slam closed as I stepped back then sat on the top step
watching Saya, wondering how long it would take.

   She hadn't fought me, not at all.  She was stronger than she looked, I
could see that clearly.  I didn't want to break her, I wanted her to
choose.

   It was only about five minutes before I could hear her sobs.  Shortly
after that her pleas started and I carefully started to work my way towards
her being as quiet as I could.

   By the time I got around halfway to her I could hear her more clearly.

   "Please, Master, I promise..."

   "Master, I'll be good, I'll be good forever, please..."

   "Anything Master, anything, anything, oh please Master..."

   By that point I was within a foot of the post.

   "What's your promise slut?"

   Her head jerked, hard, and she tried to get an idea of where I was.

   "What's your promise?" I repeated.

   ""Anything, Master,anything.  Beat me, fuck me, anything."

   "You'll fuck me anytime I ask?"

   "YES!  Anytime, anywhere."

   "Here, little slut,right now?"

   "YES!  Master."

   "In the hall at school during lunch?"

   "YES!  Master."

   "Even if I get you pregnant?"

   "YES!  No matter what, fuck me..."

   I knelt down and let her feet free, then got her loose from the pole but
kept her hands tied behind her.

   She tried to lunge for the door but I jerked her back.

   "We're not done here slave."

   "Yes, Master."

   My shirt had of course fallen once I had freed her and I got it and
placed it at my feet.

   "Kneel slave, and suck me."

   She wasn't very good that night but I didn't expect her to be after what
she'd gone through.  When I came though, she did her best to swallow
everything.  That pleased me enough, so I helped her to her feet and we
headed to the house.  Heather had the door open for us as we got there.

   "Take her, shower, then go to bed," I instructed Heather, "We'll talk
tomorrow."

   I turned to leave for my room then and noticed the camcorder on the
couch in front of the picture window.  I shrugged, picked it up, and kept
going.