The bisexual woman I know is more attracted to the female physique. When she is attracted to men they almost always are thin, not muscular, and facial features even tend to be not very masculine. She likes the idea of female relationships much better, but almost all of her long term relationships are with men, and she is frustrated she doesn’t have a lot of lesbians to pick from who are her type.
I thought I would add I am straight, but find the female physique beautiful and attractive, but never feel compelled to have sex or be in a relationship with a woman. I don’t like supermuscular pumped up men, I find it pretty icky actually. But, a medium build man in great clothes, 5’11, dark hair, perfect.