Surely she fucks the guy. If she's willing to sit there and let a bunch of girls in a bukake scene urinate on her, it would be rude not to let one lucky fan fuck her.

There's probably just no explicit promise of sex because she doesn't want the guy to get to be as rude as he likes, but have to compliment her, tell her how great she is, etc. This being the case, I would make sure I'm ultra-clean for that date. That seems to be the one thing these whores are picky about. They don't seem to care who they fuck, as long as that person doesn't have any lint or heaven forbid odor on their body. Even though I've personally never done one before, I'd head down to the drugstore and purchase an enema kit to prepare my asshole for Ashley's tongue on that date. That's what all the porn people seem to do. I'd have to read the instructions on the box to figure out how to apply it though. If she guaratees sex, the guy would probably just skip details like that.

Her ass does looks very cute on that page linked to.