I love this site, and it's time to add my story.
When I was about 15, my cousins lived just down the road from my family. My brother and I shared the same room, so i had to masturbate when he wasn't around or when I was in the shower. I found a book that my parents had on Human Sexuality, and there I read about different ways to masturbate, and found every way very enjoyable. One afternoon, my cousin, who was 14, came over. We were alone so I showed him the book. He said that he liked to play with his penis too, and that his parents-my aunt and uncle-had a book like that too that he had read. I heard my parents pull into the driveway so we quickly put the book away and went to my room. That night my brother stayed at a friend's, so I asked if my cousin could stay with me and, of course, he could.
That night, he slept in my bed with me and we were both in our underwear. We were talking about sex, and all of a sudden he put his hard dick along my butt and begin to dry hump my butt. This instantly turned me on, and I rolled over and just started rubbing his dick through his underpants. The door opened and we quickly pretended to be asleep as my mom came to make sure we were okay. (She did that a lot before anyone in my family went to bed.) So we went to sleep.
The next day we were home all alone and had the house to ourselves. I told him I love to run around naked (and still do to this day). He said okay, so we were naked and doing stuff around the house like watching TV etc. I asked if he wanted to finish what got started last night, and he said yes. We both got instantly hard. Without thinking I grabbed his dick and started stroking, and he did the same to me. Then he bent down and sucked on my dick. It was the first time I had been sucked and it felt so good. I in turn did the same to him. I told him I was about to cum and he said he was too. We stroked each other and came on each other's hands and legs. This was the first time of about three years of he and I doing things together.