This site is great!
I have a younger cousin that just turned ten. Last summer I was babysitting him at his house. His parents would be gone for the whole day. We started playing video games, but then went outside. We were jumping on his trampoline. It was sort of dark outside and I really had to piss. I told him I had to piss and he said to go around the back of the garage if I wanted to go. So I went round, I unzipped my fly and started to pee. It was like two to three minutes, I needed to go!. I was almost done when I looked up and saw through the window that my young cousin was watching me piss. He then began to hide when he noticed I was looking at him as if he was never there.
When it got darker we went inside. He started to get wild and run around. Things led to things and he eventually took his pants off. I was chasing after him. He went into the bedroom and was on his bed. He was lying back and playing with his penis. I said something like 'Aw cover up Jake!' and I threw his pants at him. He then showed me that he could pull on his cock. He had a pretty small dick, like two inches or something. Jake then said, 'Can I see yours?' I was actually hard so I unzipped my pants and showed him my six inch cut cock. Jake then says 'Your penis is huge! and why is it so hairy?'
I told him that it was normal and that his would be just like it. He then touched my dick and said that we should go to his tree house.
We went up there and I showed him what masturbation was. He was shocked. He then jacked me and I jacked him. He didn't cum though. It was amazing. We haven't done it since, but I would like to do it again soon!