I was in Jr. High school when this happened. There was a girl I had a crush on but was too shy to do anything about. I also got picked on a lot. Once she was giving a presentation to the class and I started cutting up and making fun of her. Right after class was over she came to my desk and started slapping me repeatedly while yelling at me until I was in tears. The humiliation I felt was matched by the intense arousal this caused. I went home that night and fantasized about her doing that to me while I was stripped naked and tied to a chair. That was when I realized that I wanted women to dominate me.