I can also answer from "the 1% straight side" of things.

I've had fleeting sexual thoughts of women I've found attractive, and I've even had a couple of dreams that I was having sex with Kylie Minogue. :spit: I think the dreams about Kylie were an interesting resulting of her being a gay icon as well as a very cute/sexy girl. (Okay, she's not really a "girl" anymore, but you know what I mean...)