>>13021460If she is not black out drunk and seems functional enough, not really, but honestly, after seeing how badly it can turn out, if I had to ask myself, I'd wait it out and try some other time when she isn't drunk.
What's more important is whether or not you should be looking for someone to fuck in a nightclub. I'm not a saint, I have had sex with women I barely knew a few times, but nowadays, I wouldn't really go for casual sex if given the chance. The idea of having sex with someone and seeing them on their phone texting some other tinder dude and having to act like it's completely fine just irks me.
All the relationships I had that started out with texting, hanging out and it gradually grew from there. I remember being in my early 20s and spending two weeks hanging out with a girl before we even kissed, and two more weeks to have sex, and while it does sound weirdly conservative, I think of it as a fun time in my life.
In conclussion, to add to your "if she's drunk but she wants to fuck, is it rape?" question, I would follow it up with: is it worth it though?