I thought my brother was gay

My older brother and only sibling is very smart and done very well at university and then got a started in a great career. But he didn't seem to date, and I couldn't remember seeing him with girls. Convinced my brother was gay, I decided to save him from himself. I've a friend who is sex mad and would fuck anything for a frill. I suggested to her she couldn't seduce my brother as he was out of her league. She said she could and so she started to stalk my brother, stalk might seem a little bit much. But it describes her actions perfectly, anyway one weekend no sign of her or my brother. Once she finally reappeared, she claimed victory. She had been with my brother having sex with him the whole weekend. She also informed me she was his girlfriend now and that he was the best lover she ever had, and he has the biggest cock she ever seen, and he wasn't ever gay. Now I happy I was wrong, but I want to see my brother's cock, just once.