A few days ago, I was in my room watching TV, my sister (17) and her
boyfriend were upstairs in the living room. After a little while I
started to her some giggling followed by moaning. My curiosity was
driving me wild, it almost sounded like they were having sex, I slowly
went upstairs, and I heard her b/f say to my sis "Be quiet or
your brother will hear you!" I stopped halfway up the stairs
and then I heard her say "I don't care let him hear us"
Then I walk up the rest of the stairs and there they were on the floor,
she was on her back topless with just panties on and his shirt was
off, and he was on top of her kissing her, and rubbing her breasts,
what a sight! It started to get me hard. I then snuck into the kitchen
which overlooks the living room wher I could see them but if they
didn't look that direction they wouldn't see me. Watching them really
turned me on, so much so that i pulled out my penis and started to
masturbate while watching them. She rolled him over on his back and
took his pants off to reveal his very erect penis. She then grabbed
it and started to give him oral, she just didn't put it in her mouth
either, she started by just licking it with her tongue, and then circling
her tongue on the head of his dick before sliding it in her mouth.
After a few minutes she stopped and just layed on her back and said
to him "Take my panties off" (By the way to describe my
sister, she is about 5'3" or so, maybe a 100lbs very thin, with
blonde hair green eyes and from what I saw prob B-cup size breasts,
very perky she is very attractive, and shes into gymnastics) He then
was on his knees facing her, he slid off her pink thong. He then went
into his pants pocket and pulled out a condom and put it on. Still
on his knees his placed himself in between her legs, and holding his
dick with his right hand, lifted her butt up to him with his left,
slid his dick into her. She let out a loud moan like "OOOHH!"
She was on her back, straddling him, with her pelvis elevated to his
level. He held her ass and thrusted into her over and over again.
She was moaning quite loud "Ohh OHH HAA HAA!" making all
kinds of sounds. She then told him to stop and lay on his back. She
then straddled him, and holding his penis, guided into her pussy and
started to thrust up and down on him, while he held her ass to keep
her in position. Her breasts would jiggle with every thrust and her
moaning got more and more intense as she would also scream things
like "fuck me, oh yeah ooh yeah ooh" almost unctrollably.
I then snuck closer to see if I could actually see penetration. I
got a decent view of his shaft as she bounced up and down on him sliding
in and out of her pussy. I then snuck back to the stairs so I could
watch the rest of it from the stairs so I could make a fast get away.
When they finished I snuck back to my room. The thing is, just this
morning my sister confronted me and asked if I heard anything unusual
that night. Well, I confessed to her. I told her I watched the whole
thing. SHe said she knew I was watching, and she told her b/f after,
and he didn't care but it made it more of a turn on. She then asked
me if I would tape them with the camcorder the next time,because they
want to make a tape of them having sex. That surprised me, I told
her I would have to think about that. 2 questions: 1.Has anyone ever
seen a sibling have sex, and did it turn you on to watch? 2.Should
I go ahead and tape them having sex, I'm not sure but it kind of excites
me to think of the possibilities and different angles and close ups
I could get but it could also be a little awkward, what does evryone
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