Well, I know this goes against most of the replies on this thread, but if I were you I'd wait it out. Since you calim you're not that bothered by it, you should wait until things get a bit more serious and then maybe ask her about it, or just wait and see if that's something she might want to extrapolate on. Because there are things people usually aren't very proud of and do not wish to share with even their closest people. Maybe it was a one time thing, and she needed money, and so on. Who knows? So, I wouldn't push it at this stage. Plus, it'd be pretty bloody emberassing and awkward if it wasn't her and you're left there, standing like an idiot. And even if it was her, you might just alienate her that way, if you're being too nosy. As I said - people have secrets, and sometimes it's better it stayed that way. If she truly is a pornstar, then that won't be hard to hide and sooner or later you'll find out, eventually.