She turned her body around and faced me, stroking my cock as she looked me in the eye. “You sure you haven’t done this before?” she asked me, �...You seem pretty damn good!” I smiled at her and looked down as she had my cock in her hand, I didn’t answer her. After all, to be honest, this was only the third woman I had been with, and the first woman I had been with that had more experience than me, I wasn’t going to say anything. She led me to the bedroom and we both got onto the bed, she straddled. At first I wasn’t sure what I was hearing, but there seemed to be a certain rhythmic movement coming from his bed. The lights were out so I was sure he couldn’t see me, but the window was beside his bed and the d****s weren’t closed tightly. Enough of the outside lights came in and gave me a perfect view of him slowly giving himself a handjob. I couldn’t believe that I could see him slowly jacking off. What a turn- on! I had seen guys with hard ons in pornos but never in real life. I was. Finally I got to get on top. It was hard for me to ride his cock because I like the dick when it's deep in... but that required me to inflict pain upon myself... but once I got past that I rode that dick like a champ, I was tightening my pussy muscles in intervals, I had his eyes rolled back in his head and all types of crazy shit. I was ready to cum but I waited for him and we did it together the last time. I don't know how many times either of us got off, I was too excited to count. I just. I had closed it when I came in. Now it was slightly open and my sister Amy was standing there watching me with her eyes wide. I grabbed my towel and hurried to cover myself. My anger rose in me and i yelled at her. "Don't you knock!!" She replied nervously " I got out of practice early. I'm sorry." She ran to her room without another word. I told Marcie I had to go. She just sighed and told me to call her when I was done talking to my sister.Amy was very surprised at what she had just seen. She.