Well, the woman does not look like a naive fool, who does not understand why she was invited to a man's apartment! And by the looks of it, let's say she is not poor - dressed well and not cheap lingerie! Apparently just love to fuck and not against a little adventure with an interesting man! For this theory, and says strongly developed anus, which clearly sparkled when she was bent over.
For a certain fee now any stranger is ready to take off her clothes, spread her legs and suck the first man she meets. Every cute girl is weak in the face when she sees bucks in front of her. I wouldn't want to be a pickup artist because it's a risky business to fuck unknown holes. Sure you can use a condom, but rubber doesn't always save the day.