I picked up a hispanic girl once. She was drunk and walking down the street. I suspected she was trans, but she was very passable. Anyway, she brought me to her place, and we began to play, and when got in her pants, she had a micropenis. I sucked on it and got it hard, and it was about the size of my little finger, maybe a bit smaller. She seemed to be ashamed of it, but I thought it was cute.
The only other "unusual" cock I've had was a gurl in LA. She was Columbian, very pretty and passable, but when I got to her cock, it was about 6" and she had a foreskin about two inches long. I loved licking and sucking it and playing with it.