Why so many women have rape fantasies

[ArcticGong]

Ayn Rand has a rape passage in one of her books. I Can’t remember if it is atlas shrugged or fountainhead. I was kind shocked when I encountered that. 

[Breakingthewall]

Women have this kind of fantasies because they sexuality goes to the passive side, the submissive surrender to a man in sex, then they get very horny with that fantasy because it's the extreme of that, but they wouldn't feel horny at all in real violence