School was about halfway through the year. I had just turned 13. Ron and his family lived next door, Ron was 15, a total jock and very popular at school.
My dad had turned the attic into my bedroom, and from my window I had a direct sight into the Ron's room.
I was never sure if Ron knew if I could see into his room, but it was about this time that he started leaving his blinds open while he worked out.
Every night before he took a shower, Ron would strip down to his white briefs and proceed to do 100 push ups and 100 sit ups.
I used to lie on my bed in the dark, wearing just my briefs and watch him exercise. I didn't know what masturbation was at the time, but I soon found out that slowly humping a pillow while watching Ron made me feel all tingly and good. I had many dry orgasms this way.
One night as I was humping away, Ron had just finished his situps when instead of getting up and walking out of view, he flipped over on his back.
I watched as he slowly started to rub his chest with just his finger tips, and was quite surprised when he started pinching his nipples. I could tell by the bulge in his briefs and the look on his face that he was really liking this.
I think I came instantly when he reached inside the fly of his briefs and pulled his dick out. I had never seen another boys penis before and after I recovered, was fascinated by what he was doing.
Ron was still tweaking his nipples with his left hand, but his right hand was wrapped around his dick and he was slowly moving it up and down.
I could tell his breathing was getting deeper, and could see his hips come off the floor every so often. Ron's mouth was a bit open, and his eyes were slammed shut.
All of a sudden Ron lifted his head off the ground and opened his eyes, he was staring at his dick. I noticed his stroking had increased in speed, and then out of nowhere he ejaculated.
I had never seen anyone cum, and at first thought he was peeing on himself. The first shot hit his chin, the second shot landed on his forehead, and the rest ended up on his chest.
Ron collapsed on his back and after a bit, removed his briefs and cleaned himself up with them. He then got up and closed the blinds.
I quickly rolled over onto my back, stripped off my briefs and had the first hand orgasm of my life. A few months later I started shooting my own cum.