My same sex experience started with my younger brother when we were teens. Once I found out that he had a bigger cock (8 inches hard) than me (I was 7 inches hard). I hounded him to let me suck him off, which I did several times. I very much enjoyed servicing him, but since he is/was straight, he got a gf, and unfortunately for me, she took over sucking duties. We didn't try fucking. I wanted to take his cock, but he resisted. I am sorry that he didn't want to breed me, but I am glad I got to have his cock and cum in my mouth.
A younger cousin and I got naked once and stroked each other. I was ready to suck him, but we heard our moms coming down to the basement, so we stopped and got dressed. Sadly, he and I did not have another opportunity to finish what we started. What is really funny is I believe he is gay, but still in closet and totally hot, since he started going to the gym. I came out years ago, and I wonder if he would have come out too, if I had sucked him off that day.