My mom's younger brother was practically raised by my mother. He always lived with us and when my Dad divorced my Mom, it was only the three of us until now. My uncle is 28 yo and I'm 20. I thought of my uncle more like a older brother but my feeling changed when I saw him fucking a friend of mine from behind, in our garage. That image never left my mind and I felt I wanted to have the same experience with him. It didn't took long for that to happen and now I really like his cock.