Guitar Hero

My sister just got the video game Guitar Hero. Today we were playing in her room, but she had left all her dirty laundry on the flor including her bras and thongs. This of course got me somewhat horny but for almost an hour nothing happened and after a while i forgot about it. Then my sister had to get ready for to play basketball.

Me and my sister have never been shy around one another and she just changed right in the room while I was playing the game. Well, since the TV was placed so i could look at the mirror and see her change. I noticed that see spent a bit of time taking off her bra to put on for basketball (maybe she knew i was looking) well this got me very exited seeing as she is a 36B with a basketball player body. also as she changed from her thong to some regular underware i cloud see that her had brushed against her pussy a few times and once even stayed there for almost 30 seconds.

Once she got done dressing she took over the game again and I was sitting on a chair behind her. I was in my sweats without my boxers on so I slowly stared to rub through my sweats if so she turned around I could seam inocent. for the next minute or two I did this and she didnt seem to notice so I slowly pulled out my cook and just started going at it. I was slowly pumping with both my hands, totaly intranced (she was playing ziggy stardust and she was nailing almost all the notes so maybe that was part of the rason).

The thought of having her turn around and see me got me so hard it hurt, as the feeling came about me I used all my will to stop and wait for a little while, still with my hands on my cock. I knew the longer i had it in my hands the greater the risk of being caught but the longer I kept my cock out the more exited I got. Finaly I started to slowly rub up and down my 8 inch cock picking up speed again.

For about a minute I held it in but then I could not hold it any longer as I came I let out one very audibale grunt but she didnt seem to responde. I caught my cum in my hands and slowly backed out of the room. Once I made it to the bathroom to clean up I was hard again just thinking about what just happened so I started again, this time it was harder but I came again within 5 or 10 minutes.

She hasn't said anything about it so far so I'm suspecting that she didn't notice. that was not one of the best orgasm I have had but one of the most exiting. Hope you liked the story.