Just gonna throw out guys find bi girls hawt cuz they can totes tricycle dat shiz and claim the prestigious three-way belt rightfully as their own.
Also, Slow's totes right about the same-sex crush thing. If James Franco walked through my door right now and was all like "HEY HAWT STUFF. I WANT A PIECE OF THAT." I would totes give him a piece of that.
Also, psychologically speaking, generally women have a much less rigid sexuality than men. So bi men are far less common than bi women, which probably attributes to the social stigmas and whatnot.
sexysexysex