I guess I was an exhibitionist but had never known it. After I had switched off the light each night, without exception I masturbated to orgasm. I sta...ted thinking about my spy when I did so, imagining him having a nice sized dick, tugging on it as he spied on me, ejaculating copiously. After a few drinks one Sunday afternoon, I decided to put on a real show. Fortified by a bottle of Pinot Grigio I checked whether my spy was in residence. The telltale signs, perhaps imperceptible to most proved. Annie was my older sister. Annie had dark hair and very nice tits. She had big brown eyes and a cute face. She and I had always been close. On this particular afternoon we were home alone and would be for several more hours. Annie and I were bored and sitting around talking. The conversation soon turned to sex and Annie asked if I had any luck getting laid or even seeing a girl naked up close. I told her no and asked if she could help me out. Annie smiled real big and stood up and took her. She rubbed his penis through his jeans and she thought that would be the night, but suddenly he stopped, and she noticed a big wet spot on his jeans. She was confused because he got very angry and took her home. She said that she didn’t know what he said to the other boys, but no one had asked her out since that happened. I told her what happened. I explained to her what a premature ejaculation was. I let her know that she did nothing wrong and that stupid boy was embarrassed, and probably. My previous training told me to walk out due to the risk of hurting myself but it would only have meant me returning. She made her way over the junk towards the window climbing over old bits of beds and chests of drawers with me following.As she clambered over the obstacles in our way her nightdress rode up over her scrawny ass and as she stretched out a little more parting her legs to remain stable her ass cheeks parted and I could not only see her pussy but her also her ass hole. Her pussy.