My Uncle Wanted to See

I submitted a story earlier about my sister and I flashing one another. This is another family oriented account of a little fun. My Dad had married a woman that was only 10 years older than me. Her youngest brother (my uncle, sort of) was two years younger than I was. When I was about 15 and he was 13, he asked me one day if I ever masturbated. I said I did and he responded by asking me to show him. Well, since my exhibition tendencies had already been established with my sister and her friends, I agreed. So we went to his room and he locked the door. I laid on his bed and pulled my cock out of my pants. He sat next to the bed as I started stroking it. It was feeling good and he watched as I shot a large load of hot cum across my chest and stomach. He said thanks and I cleaned up. That was the one and only time that anything ever happened between us. My Dad and stepmom divorced some years later and I lost contact with him. More stories to come.