One time I had been working in the backyard at my dad's house. I was so tired I went inside, took my shirt off and just lay on the couch for a while. A while later my dad came in and asked me why my shirt was off, so I told him I was hot and he took his shirt off.
We both began laughing and my penis got harder for some reason, which I guessed was that I liked seeing him with his shirt off. Then I noticed his penis was erect, as I could see it, so we both got completely naked and started to masturbate. Soon after he started to push my penis up and down, as I started to ejaculate on to his chest. Then he also ejaculated.
It was a good experience, though we never really did it again, until much later.
Solo Touch website is great!