Playing with a friend in bed

A friend sleeps over and we explore each other's bodies.

When I was about 13-15 or so I often had a friend sleep over. One time for some reason we went to my room and we were laying on my bed. We were just talking and he asked me if my dick was hard or not. I said it was kinda hard but not all the way. He asked me if I ever rubbed it against anything and I said that sometimes I rubbed it against my leg or my hand. He then asked me if I wanted to rub it on his butt. I thought about it for a second and agreed. I got on top of him and layed my dick so that the sensative underside was pointing down and then started thrusting into his butt so that my dick moved along his body. After a few minutes of this we both started shaking and experienced an orgasm. Then we stopped and went out to play.
Later that night when we were in bed we were just in our underwear and we started talking about what had happened earlier that day. We eventually took off our underwear and stared playing a game like we were in a porno film, taking pictures of each other's dick. We were touching each other's dick and we were both really hard. Then my friend surprised me and put my dick in his mouth and started licking it. I asked him what it tasted like and he said it was kinda salty and asked me to lick him. I agreed and licked his dick a few times but it didn't taste very good so I stopped. We then got the idea for me to hump his butt like earlier but with no clothes on. The feeling was incredible and way better without any clothes on. I only lasted about a minute and then I shot my load all over his butt and his back. He hadn't cum yet so he asked if he could hump my butt in return. I agreed and he humped himself to orgasm. We then fell asleep quite content. That was the last time I ever did anything sexual with another man, but it sure did feel great.