To ravish
1. to seize and carry away forcibly
2. to rape (a woman)
3. to transport with joy or delight; enrapture

A rape fantasy or a ravishment is a sexual fantasy in which a person imagines themselves being coerced, raped, or otherwise forced into a sex act. Some people enjoy the feeling of sexual submission, while others like imagining themselves as so irresistible and unattainable that their attacker must let loose their animalistic instincts. Those who have forced sex fantasies seldom wish to actually be forced into sex.

The difference between a fantasy and a real life situation is that in the fantasy, the person remains in full control of what happens and maintains their power. It can be feeling of domination or submission also, as someone fantasies of forcing someone, or being forced, to have sex.
Source: wikipedia.org (click the link for the whole article)

Rape fantasy content - where can you find this?

Ofcourse there are loads of mainstraim movies with rape scenes.
A couple of wellknown are "the wicked lady" starring Marina Sirtis, "skycraper" with Anna Nicole Smith, and "The accused" with Jodie Foster.

Forced sex can also be found in many manga and hentai anime movies and comics. Where the women and men are subject not only to human rape but to alien and monster rape as well.

Last but not least, there are the adult sex sites with rape fantasy content.
Click here to view free movie samples taken from those rape sites.