It is the bottom line, isn't it? Not just that one night stand (altho sometimes it is) but over and over on a regular basis, simply fuck me. Because you want to, not because it is some ideal thing in your head, but because it is some strong urgent hunger elsewhere. You saw an image, a video, read a word, looked into eyes, smiled at a smile...and you want to fuck. It's human, direct, honest, and real.
Or it's not.