When I was eleven, I had a best friend Paul. He was a skinny kid who I had become best friends with. One night, he was staying at my house and we started talking about sex. We both bet that each of us had a bigger penis, so we decided to find out.
I pulled mine out first, and I was erect by this time with all the excitement, and I was four inches at that time. He just stared, and I thought he was going to chicken out. Then he finally pulled down his shorts, and I have never seen a penis that small. It was only two and a half inches.
He was embarrassed at first, but then I started to masterbate, and he joined right after. He then decided, because I won, he should jack me off, I then returned the favor. We did this on and off for about a year, but then grew apart. It was my first with someone else, but not my last!