This happened when my friend and I were both 13. He was of medium height, skinny with blonde hair and blue eyes and I was tall and well-built with black hair and green eyes. This started out as nothing more than a childish game and developed into what you are about to read. We were walking home from school when he bet me that he could reach a post before me, and the loser has to do what the winner says. I agreed and started running. I reached the post first and being a curious little boy, I told him that I wanted to see his dick. He agreed to show me but he wanted me to go to his house to do so, which was on the way to mine.
When we got there, his parents weren't home so we went up to his room. I sat on his bed and watched him as he took off all of his clothes, leaving him standing before me with an uncircumcised four inch boner, identical to mine. I then asked if I could touch it and he said yes. I grabbed his hairless penis and began to examine it closely. He told me that he was having fun, so I asked if I could get naked too. He agreed so I also stripped down and let him examine my genitals. He then knelt down before me (I was still sitting on the bed) and started to pump my dick. I was softly moaning in ecstasy for only about three minutes before I ejaculated, my cum shooting into his open mouth. He swallowed it all down like a good boy.
I then got him to lie down on the bed while I sat next to him to return the favour. I was only working at his cock for about a minute before he also came. His semen, however, just dribbled down his shaft. I licked it all up while he grinned devilishly.
We spent the next 15 minutes lying together on his bed and talking, totally naked. He then glanced at the clock on his bedside table and told me that his mum would be home soon, so we both got up and got dressed, after which I left.
Unfortunately, my friend moved away before we could do anything else and I haven't seen him since, but I'd love to catch up and maybe have another go.