When I was just entering puberty I was so horny all the time. I masterbated everyday sometimes multiple times. One day my younger male cousin who would have been 13 and I would have been 15 were at my house alone. We were looking at dirty mags in the living room. I was getting really horny and said I had to go to the washroom. "Don't shake it more than twice or your playing with yourself" he said kidding. I went in and sat on the toilet and began stroking my hard young cock. After a couple minutes I heard him near the door and saw his shadow. I knew he was peeking. My heart started to pound out of my chest! I never thought that someone would want to peek but what a rush! It was an older house with an oversized gap under the door. I wasnt sure but I figured that by laying on the floor he could probably at least see as high as my cock. I will remember the rush I felt that moment for the rest of my life. I had no sexual interest in my cousin at all but to know I was being watched was amazing. I came all over my stomache with the biggest load I ever had. I cleaned up and acted like nothing happened. Later when I was home alone I laid on the floor and I was right at how much he would have seen. I knew he couldn't see my face and therefore know that I saw him because I couldn't see his eyes. That was just the beginning of those sessions that summer. Each time I got bolder, I would sometimes sit naked on the floor facing the door. He could see about as high as my chest. He had long hair back then and I actually saw his hair peeking under the door so I knew 100 percent he was there watching me work my hand up and down on my cock, with precum coating my hand and shaft. Other times I actually layed on the floor with my haed near the door. I could hear him trying to breath quietly as he looked over my should and watched my jerk off and shoot cum all over my chest. I also watched him jerking off several times too by peeking.