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Title:       Big Sister, Part 1
Story Codes: tg, mf, teen, inc
Author:      Christian Alan
Summary:     As a boy, it's not easy growing up with a sister who
             has a bigger dick than you do.  	

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One


"Knock it off already." Cassie had the remote control firmly
entrenched in her hand and was doing her best to keep it out of
reach. The TV was stuck on basketball, which sucked. I knew that
there had to be some combination of leverage and brute force that
would cause my sister's fingers to open and let me gain command
of the remote. Getting up and walking to the TV was simply out of
the question.

"Knock what off?" I replied, making another grab. Cassie just
rolled her eyes and pushed me away. Time for a desperation move.
I stuck my thumb in my mouth just long enough to let it collect a
good amount of spit, then, distracting her with another lunge for
the remote, I slid my thumb past her defenses and rubbed it over
her left ear.

"Ewww! Fucking gross!" Her grip loosened just enough for me to
pry the device from her hand. My victory was sweet, but it was
also short.

"Okay, Knob. You asked for it." She grabbed me by the wrist and
deftly twisted it behind my back, using her three-year age lead
and height advantage to throw me down on the couch. She pinned me
on my stomach and quickly moved into a sitting position on my
shoulders, resting her full weight down on me to keep me from
escaping. It was pretty much over. I knew what was coming next,
and with one final effort I raised my free hand and succeeded in
changing the channel before she could wrestle the remote away.
Yes! Victory! No matter what happened now, she could never take
that away from me.

I closed my eyes as I heard her unzip her pants. My embarrassment
was unreal as she began whacking me on the back of the head with
a blunt, meaty object.

As a boy, it's not easy growing up with a sister who has a bigger
dick than you do.

My family isn't exactly normal. Cassie's dad was killed in a car
crash when she was only a year old. Mom got married again and had
me, but my dad ran off with an airline stewardess when I was
seven, leaving my mom to take care of us by herself. We've been
though some rough times, but I think we're closer because of it.
And also weirder.

My sister Cassie is...well, different. When Cassie was born she
was what they call 'intersexed,' which is the name for what
happens when your parts are mixed up between being male and
female. They decided to operate and make her into a boy, but as
she got older it started to be obvious that she wasn't supposed
to be one. Now at sixteen you couldn't guess that she was
anything other than a slightly tomboyish teenage girl. She looked
like a girl, dressed like a girl, and even smelled like a girl.
She pretty much *was* a girl in every way except for what she had
between her legs. A lot of people seem to think that's the only
place that counts, but living with Cassie has taught me that its
what's in your head that really matters.

It was a little strange growing up with her, but I pretty much
got used to the fact that she had a 'thingy' like I did. The
strangeness increased when she hit puberty and started growing
boobs, something that the doctors said was unusual since she
hadn't been taking hormones. They gave her some to try out and
her boobs got even bigger. Her hips got wider too and she started
getting taller. I was still small for my age and it soon became
clear that she could beat me up pretty much at will. Not that she
ever really did, but whenever we had a wrestling match she would
almost always win. We usually got along well, but as we both got
older things started to get...complicated.

Our mom was working long shifts at the hospital, leaving Cassie
in charge at home. I didn't enjoy being bossed around by my
sister so sometimes I got pretty rebellious. Then Cassie
developed her unique way of dealing with me and I quickly learned
that making her mad was a bad idea. That didn't always stop me,
however.

Sometimes she got really irritable. She didn't seem to have many
friends even though she was smart and wasn't bad looking. She
liked guys and even had a boyfriend for a while when she was
fourteen, but he'd peeked at her once when she was changing in
his parent's poolhouse and totally freaked out. He broke up with
her right after that and she'd hadn't had a boyfriend since. She
was probably pretty lonely. Sometimes I felt sorry for her, but
she could also be a real pain to live with.

She was in one of these moods one night when I suddenly got a
hyperactive urge to tempt fate. I crept up behind her as she was
laying sidelong on the couch. She was watching basketball again.
I waited until one of the players made a three-pointer, then I
reached down with lightning speed and snapped her bra as hard as
I could.

"He shoots, he scores!" I yelled, then ran for my life. It was
the typical kind of foolishly suicidal thing you do when you're
thirteen and bored out of your mind.

She snarled and lunged, but I was already sprinting back
upstairs, hoping that I could barricade myself in my room before
she caught up. I almost made it. She shoved the door open with
her shoulder before I could get it completely closed and jumped
on me.

This time I knew I was in trouble. The look on my sister's face
made it clear that I was dead meat. I wasn't going to give up
without a fight though.

We crashed onto the bed and wrestled like mad, grunting and
growling like a couple of crazy animals. It lasted a few minutes
before she distracted me with a charley horse and pinned me to
the mattress. We were both panting for breath and I was suddenly
very aware of her boobs pressing against my back as she held me
down. It was a good thing I was on my stomach. The grappling
match had left me with a painfully stiff hard-on, embarrassing
but not terribly unusual. A gentle breeze could often make me
hard those days. Acting tired, I relaxed and pretended to give
up. I planned on trying to throw her off when she moved up to
administer the standard thwacking, but she stayed laying on top
of me and didn't move.

Afraid that she was thinking up some new and even worse
punishment, I quickly flipped myself over on the bed and almost
succeeded at knocking her to the floor. She squealed and shoved
me back down, hopping up to sit on my chest with her thighs
locked around my head. Her leg had brushed against my crotch as
she moved up, and to my surprise she suddenly reached back and
grabbed my dick through my pants.

"I thought I felt a little pin-prick,' she said, grinning evilly
down at me.

"Shut up," was my witty comeback.

"Make me."

I struggled to push her off but her knees had a deathgrip on my
head, squeezing down around it like a nutcracker. Still grinning,
she reached down and started unbuttoning her fly.

"I think you need to see what a real one looks like," she said,
her voice quieter but no less malevolent.

I winced, afraid to look as she pulled out her cock.

This was *soooo* not right. I could already imagine the many
years of therapy that were lying in wait for me. Still, I
couldn't help but look. She had some trouble getting it out, and
when she finally succeeded it was obvious why. She was just as
hard as I was. Seeing a rigid penis sticking out from the fly of
a teenage girl sitting on your chest is an experience that's not
easy to describe, especially when that girl is your sister and
you realize that her dick is bigger than your own. I found myself
staring up at it in in a state of mild shock. It wasn't bad as
far as penises go I guess; it was maybe six inches long and
looked really smooth and clean. It was also, though I hate to
admit it, almost *cute*.

She pinned my hands to the bed and looked down at me with a
wicked gleam in her eyes. Her cheeks were turning a hot red color
like she was blushing. I expected her to slap me with it or
something, but she just sat there with her dick pointing slightly
down at my face. My heart was hammering in my chest, and I
suddenly realized that I was getting really turned on. There were
so many things wrong here that it was hard to keep track. And it
was about to get even worse.

Cassie's grin had faded, replaced with an expression of...I
wasn't sure what. Her face was suddenly serious and her boobs
were rising and falling with her breathing. Her cock hung stiffly
only a few inches away, aiming almost directly for my mouth.

"Suck it," she said quietly, almost in a whisper.

I stared at her dick for a moment, not sure exactly what I wanted
to do. I'd never even thought about trying something like this
before, but...

Without even fully realizing I was doing it, I lifted my head up
and gave her cock a little lick. It smelled like the body wash
she used and didn't really taste like anything. Not bad so far. I
took the head between my lips and gave it a few experimental
sucks. It felt warm and very stiff. Cassie gasped and leaned down
over me, pushing herself further into my mouth. I started sucking
harder and took as much as I could, feeling it twitch every time
the head nudged against my throat. I wasn't sure if I was doing
it right, but the way she was gasping and panting seemed to say
that she liked it. She was gripping my hands so tight it almost
hurt. Suddenly her whole body tensed up, and before I knew what
was happening there was a sudden gush of warm, salty liquid in my
mouth. She let out a low groan as her cock jumped again, pumping
out more of her stuff. It tasted kinda gross. I guess I could
have pulled my head away, but I think I was too stunned to move.
For some reason I hadn't expected her to cum the same way a boy
did.

After a few more squirts, Cassie's body relaxed and she slowly
rolled off me. She sat at the edge of the bed and looked at me
for a second, then suddenly stood up and ran out of the room. Not
sure what else to do, I went to the bathroom to spit the stuff
out. I rinsed my mouth, feeling ashamed as I realized I was still
hard as a rock. It was all very confusing. Did this mean I was
gay? I walked to Cassie's room and stopped outside the door. I
could hear the sound of quiet sobbing from inside. I didn't know
what I should do. I wasn't even sure why she was crying. The
situation was just too fucking weird. I went back to my room to
fire up my Xbox and tried to forget about it for a while.

* * *

Cassie avoided me for almost a week. I didn't know if she was
disgusted with me or just ashamed of what had happened. I wasn't
sure how I felt about it, but I knew that I didn't want things to
stay weird between us forever. That weekend I waited until mom
had gone to bed and then went down the hall to Cassie's room. I
could see a faint light coming from underneath the door so I knew
she was probably awake. I knocked softly.

"Cassie?"

There was a moment of silence. "Yeah?"

"Can I come in?"

Another pause, but shorter this time. "Okay."

I went in and closed the door behind me. Cassie was sitting on
the edge of the bed wearing only a bra and a pair of boxers. It
looked like she'd been reading a book. My eyes immediately locked
on her boobs. They were pretty big and were pushing out of the
top of her bra like she was starting to outgrow it. I forced
myself to look up at her eyes, but she wasn't looking at me.
Neither of us said anything for a few moments.

"Uh, I just wanted to say I'm sorry for, um..." I trailed off,
not sure how I should finish. There wasn't exactly a Hallmark
message for this kind of thing.

Cassie finally looked up at me, seeming shocked. "*You're* sorry?
Jesus, Bobby." She got up and gave me an awkward hug. It was my
turn to feel a bit surprised. She hadn't hugged me in years. I'd
been more expecting her to scream and maybe throw something. I
could feel her boobs pushing firmly against my chest, and it was
starting to have an effect on me. My shorts suddenly felt much
tighter.

"It wasn't your fault. I made you do it." She said, her head
resting lightly on my shoulder. "Do you hate me?"

"No." I didn't. In fact, hugging her like this was making me feel
warm and lightheaded.

"Good." She pulled away with a smile, but her smile quickly faded
as she looked down and noticed my hard-on though my shorts.

"God, you are such a perv." She punched me on the chest and
walked back to her bed.

"Yeah, well, so are you." I said, then as she turned back to
glare at me I quickly lunged in and yanked her boxers down around
her knees. Cassie shrieked and tried to hide herself as she
reached to pull them up. I was still able to get a pretty good
look. She didn't have much hair on her crotch. Her penis was
semi-hard and I could see that she had a small set of balls
hanging down below it. It was pretty weird seeing a package on
the body of a sixteen year old girl, but I was starting to get
used to weird things.

"You are *so* dead!" She growled.

I decided to make a preemptive strike while she was still dealing
with her underwear. I tackled her backwards onto the bed,
managing to gain the upper hand as she kicked and growled at me.
After a quick but frenzied struggle I was able to flip her onto
her stomach and pin her hands.

Resting my weight on top of her, I started wondering what I could
do to embarrass her and pay her back a little. The fact that I'd
managed to pin her on her own bed while she was half-naked was
probably pretty humiliating by itself. I wasn't in much of a
hurry to decide. Rare victories like this needed to be savored.
Also, her butt was rubbing against me as she tried to push me
off, and it felt kinda good.

"Let go!" She twisted underneath me and I felt my dick slip
between the cheeks of her ass. It lay trapped between us, pointed
up at the small of her back.

Sometimes I called her 'Assie' because her rear end was kinda
big, but mostly just because the name pissed her off. Right now
it was nothing to joke about. Her boxers were only covering her
ass halfway and the warmth and softness of her butt was feeling
really good even through my shorts. I had an idea that I
shouldn't be doing this...it seemed almost like rape. It was the
only position I could keep her down in though, and I knew that
the second I let up she would kill me.

Just then I noticed that she'd mostly stopped struggling. She was
still twisting around a little but it didn't seem like she was
trying very hard to knock me off. Mostly it was just making my
dick rub against her ass even more. After a few moments it dawned
on me that she might be doing it on purpose. I'm normally a bit
quicker on the uptake, but the idea that Cassie could somehow
*want* me to dry hump her butt just seemed crazy.

Crazy or not, it was starting to feel pretty damn nice. I decided
to risk seeing if I could make it even better. She didn't move as
I let one of her hands go and worked my shorts open. I pulled her
boxers down a little more, then moved back into place with my
dick laying on her naked butt. I noticed quickly that the feel of
skin on skin was much, much better. I moved my hips a little so
that my cock rubbed slowly back and forth on the crack of her
ass. I didn't know if this was what actual sex was like, but it
felt awesome.

I got so lost in the sensations of pushing against her butt that
I didn't realize I was about to cum until it was already
happening. I couldn't move, or even think as my stuff started
launching out all over her back. I'd played with myself plenty of
times, but this was the most insane cum I'd ever had. I moved off
of her when it finally stopped, suddenly feeling ashamed of
myself. Cassie's back and shoulders were streaked and messy with
my sperm. Not seeing anything else to clean up with, I used my
shorts to mop it up. She was still laying there quietly like she
had been the whole time. The only way I knew she was even alive
was from her steady breathing.

I sat back on the bed, unable to keep from staring at her butt.
There was just something about the curves of her hips and ass
that was really hot. If I hadn't already known she was
'different,' there would have been no way to tell from this
angle. Acting on a sudden urge, I reached over and gently
squeezed her ass with both hands. I kinda expected her to yell at
me, but all I heard was something that sounded like a quiet moan.
Wondering how far she would let me explore, I slowly pushed her
cheeks apart until I could see her little pink butthole. It
looked clean and was glistening slightly with sweat. Feeling
strangely drawn to it, I moved my hand down and rubbed it lightly
with my thumb. She gasped and I felt her jump a little, but she
didn't say anything or push me away. I rubbed it again, then took
my hand away and stood up. Maybe she liked me touching her butt,
but I had no idea what I was supposed to do down there.

Cassie rolled over on her back and looked at me. Her dick was
very stiff and lying back against her stomach, the tip all shiny
and wet-looking. I could see the shapes of her nipples poking
against her bra. She just laid there watching me as I sat down
next to her and put my hand around her cock.

I started moving my hand slowly up and down, noticing how soft
the skin felt despite how stiff it was. Even her dick seemed
girly. I was thinking about sucking it a little when she suddenly
moaned and raised her hips. I instinctively pumped a little
harder as I saw a thick white jet of cum shoot out over my hand
and land on her stomach. She kept flexing her hips as a few more
spurts came out, then she fell limp with a long sigh. The sight
of her cumming had made my own cock fully hard again. She saw it
sticking up as I stood to wipe my hand with some tissues. She
groaned and rolled her eyes.

"Go to bed, Knob," she said, tugging her boxers back up. "Just
remember that I owe you a beating." She grinned evilly and I made
a hasty exit before she decided to make good on it.

* * *

Things were quiet for a few days. It was obvious to me that I was
getting more and more attracted to my own sister, and it was just
as obvious that it didn't bother me much. I knew it was wrong but
it didn't feel like what we did was hurting anybody. Anyway,
thinking about it too much just gave me a headache, so I stopped
worrying. I did know that the idea of playing with another guy's
dick still grossed me out. With Cassie it was different.

A few days later she came home looking upset. I'd been planning
to mess with her again and see what happened, but one look at her
face told me that it'd be a bad idea. She stormed past me up to
her room and slammed the door behind her. A little while later I
was distracted from the TV by a crashing sound from upstairs. It
sounded like Cassie was screaming and throwing things. She'd
thrown hissy fits before sometimes, but this one sounded bad.

I wondered what was wrong but I knew better than to bother her
then. She would probably just try to bounce a lamp off my head or
something. I waited until the noise quieted down, then climbed
the stairs and went to her room. I couldn't hear anything on the
other side of the door. I knocked. No answer. I knocked harder.

"Go away," she answered. Her voice sounded faint and shaky.

Never one to obey orders, I slowly opened the door. Her room was
a mess and the mirror over her dresser was busted. I started to
worry that she'd hurt herself. She was lying sideways on the bed
and clutching a pillow over her face. Her body was shuddering
like she was crying, but she wasn't making a sound.

"Are you ok?" I asked. When she didn't answer, I made my way
through the wreckage and sat down next to her. I stayed there for
a few minutes until she stopped crying and looked at me from
under the pillow. Her eyes were wet and red.

"I thought I told you to go away," she said, wiping her cheeks.
She didn't seem to have the strength left to even glare at me.

I shrugged. "It sounded like a bomb went off in here and I just
wanted to see if anyone survived."

"Funny." Cassie rolled over with her back toward me and curled up
into a ball. "Now leave me alone."

"So are you ok?" It felt like a dumb question, but it was the
only one I could think of.

"No."

"You want to talk or anything?"

"No."

"Fine." At least I'd tried. I was sure I'd find out more about it
later when mom got home.

She didn't get in until around midnight. Cassie waited up for
her. I was supposed to be asleep, but I snuck out of my room and
listened from the top of the stairs as they talked in the
kitchen.

Apparently Cassie's old boyfriend had gotten pissed off for some
reason and started blabbing to everyone that Cassie had a dick. A
guy came up behind her at lunch and grabbed her crotch to see for
himself. I knew she wore an athletic supporter to hide the bulge,
but if he'd gotten a good feel it would've been easy for him to
tell what she had down there. Cassie had elbowed him in the gut,
then he'd shoved her and called her a freak. Some other kids
stepped in before it went any further, but the asshole and his
friends had hounded her all day.

"Now everybody looks at me like I'm a mutant or something," I
heard Cassie say. "I hate this body! I hate it!" She started
crying again and I heard mom trying to comfort her. I hadn't
really thought about it much before, but I realized Cassie was
pretty unhappy about being different. It pissed me off that those
guys had messed with her like that. I wished I was older and
bigger so I could do something about it.

Whatever mom said to her seemed to help though. They started
heading upstairs, so I ran and got back into bed. They talked a
little more in Cassie's room and then said goodnight. I pretended
to be asleep as mom came in to check on me. She sat down on the
bed next to me and I felt her run her hand over my hair.

"Go easy on your sister, Bobby.' She told me. "Things are hard
for her right now." I wondered if she knew I was awake. Probably.
She always seemed to know. She kissed me goodnight and then left.

I waited until I was sure she'd gone to bed, then I got up and
went down the hall. I opened the door to Cassie's room as quietly
as I could and slipped inside. I followed the sound of her soft
breathing over to her bed and slid quickly in under the blanket,
nestling up against her like I'd used to do when we were little.
She tensed up for a second when I put my arms around her, but
then relaxed again. It felt really good holding her like that. I
hoped it felt nice for her too.

The next thing I knew mom was waking us up for school. She didn't
seem mad that I'd gone to sleep in my sister's bed. If anything
she seemed to think it was cute. Cassie didn't want to go, but
mom reminded her about the talk they had last night and Cassie
eventually gave in. I felt bad for her. I'd had my share of
teasing in school and I'd hated it, but what she was going
through was probably a million times worse. I hoped we'd still
have a house left after she got home that day.

When Cassie did get home I was surprised to see that she was in a
decent mood. She wasn't exactly happy, but she seemed more like
her normal self. So normal in fact that I couldn't resist the
urge to snap her with a damp rag when we were cleaning up the
kitchen. She was leaning over and her ass was just too tempting a
target. The cloth impacted against her butt with a startlingly
loud crack. She yelped and spun around with murder in her eyes. I
ran, laughing like a maniac the whole time.

She cornered me in the living room before I could make the
stairs. I tried to fake her out and jump past, but she caught me
and tackled me down onto the couch. I did my best to escape, but
her wet hands gave her an unfair advantage when grabbing my
clothes. They also hurt when she pinned me face down with her
knees in my back and started spanking me hard on the butt.

"If you're gonna act like a brat, you're gonna get treated like
one," she said, her voice sounding stern though I was sure that
she had a huge grin on her face. It wasn't really a typical
spanking either. She rested her hand on my butt for a little
while in between smacks, sometimes even squeezing it a bit. It
was embarrassing and the spanking part hurt, but the more gentle
stuff felt kinda good. After a minute she suddenly reached
underneath me and put her hand on my crotch like she was checking
to see if I was hard. And if course, I was.

"Perv." She gave me another hard whack on the ass, then let me up
and went back to the kitchen. I followed slowly, my rear end
smarting and my dick hard as a rock. I watched Cassie's butt as
she walked, suddenly feeling more horny than I ever had in my
life. She went back to the sink and a few seconds later I moved
up from behind and grabbed her, my dick pressing against her ass.
Even though I hadn't planned it that way, my hands ended up right
on her boobs. They felt warm and heavy and really nice in my
palms.

"Stop it." Cassie pulled my hands off her chest and wriggled away
toward the counter.

I was way too turned on to listen. I caught her and put my hands
back on her tits, squeezing them a little as I started rubbing
against her like I'd done on her bed. I felt like I was going to
cum even with our clothes still on. I kept expecting her to stop
me again, but she didn't. She just leaned forward, putting her
hands on the counter as I played with her boobs and slowly humped
her butt. After only a few minutes I started to cum, feeling a
rush of sticky heat fill my underwear. I rested up against her
for a bit, feeling her tits moving slowly up and down in my hands
as she breathed. It felt really neat.

Suddenly she turned around and pushed me down on my knees. I
watched as she quickly undid her pants, her stiff cock falling
out almost right away. I didn't hesitate. I started sucking it,
hearing Cassie groan softly as she flexed her hips toward my
mouth. I reached around and started feeling her butt as I sucked
on as much of her dick as I could. The look on her face told me
that she was really enjoying it, and I started to wonder what
having my own sucked would feel like. She put her hand on my head
and ran her fingers roughly through my hair, then a few seconds
later her cock got even harder and started squirting in my mouth.
It didn't taste as gross as I remembered, and I decided to
swallow it and see what would happen. It didn't kill me. Cassie
moaned and leaned back against the countertop, and I kept sucking
her gently until she pushed me away. She gave me a weird little
smile as I stood up, then smacked me again on the butt.

"Okay," she said, suddenly looking serious again. "Stop fucking
around and finish your chores."



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