When I was about 11 I cought my sister changing clothes. I was outside raking the leaves when I saw her through the window. I slipped behind a bush and watched as she took her bra off and rubbed lotion on her tits. She tried on a couple of different bras before finding the one she liked and putting on her shirt. I was now horny as hell and had a hardon that took complete control of me. I went into the edge of the woods and pulled my cock out and started stroking it like a man on a mission. It didn't take long for me to cum. At the time my orgasms were still dry so there was never any mess to clean up. After that day I was always trying to catch a peek at any and all women I could. i walked the neighborhood looking in windows and peeked through keyholes ahen my sister took a bath. I managed to catch a glimpse from time to time and it only fueled my desire for more. Until one morning I had gotten up to get ready for school and walked by my sisters room going to the bathroom. she was half uncovered and wearing only her silk nightgown. Her nipples were hard and were poking up trying to tear through her gown. I couldn't help myself, I stopped and eased the door open a little and walked up to the side of her bed. She didn't move a muscle when I came in so I gently bumped the bed to see if she would wake up. She didn't budge and I was getting bolder and braver by the second. I reached down and pulled my dick out of my pjs and started stroking slowly while trying to be as quiet as possible. I soon realized that I was about to cum and thought about finishing in the bathroom. I soon convinced myself that since nothing ever came out when I came that it would be ok to finish standing right there beside her bed. I kept stroking until I felt myself about to cum and boy did I. Only this time it wasn't just the great feelings that came along with orgasms. This time when I came I shot a couple of drops of cum onto her gown and pillow. I stood there frozen like a deer in headlights wandering what i was going to do now. I was staring at the wet spots on her gown and didn't notice her open her eyes. She got my attention by saying what was I doing. Then I realized I still had my dick in my hand and it was still hard. I babbled some lame excuse but she didn't buy it. I mean who would. There I was with my dick in my hand and cum on her gown and pillows. I was stone cold busted. I begged her not to to tell and offered to do all of her chores for a month if she didn't. She agreed and I did all of them. In the months after she admitted that after she thought about what I had did it had turned her on. She said knowing that I thought she was hot enough to jack off to and thinking about made her feel like she was pretty. I have now jacked off for her several times and she has even helped once. We haven't had sex and don't have any plans to right now. So until things change I will continue to put her on a show whenever she wants me to.