Girls, is my girlfriend a virgin?

You cant really know for sure. Some girls just naturally like it and adapt quickly. But it seems to me that its more likely that she is not a virgin. Most virgins, even with just fingers, will feel some sort of pain and will need to be eased into it. Iv been with virgins and non virgins and Iv kinda grown to know the difference in the way they act the first time. Iv also had girlfriends who have lied about being a virgin and later finding out it wasnt true. She kinda acted like what you just described. She also was kinda aggressive which is odd for a virgin. But like I said there is no way to say that that is true for all virgins =/ Personally I couldnt care less if a girl is a virgin or not. (I odviously have no right to care) but if she is lieing about it then you have every right to be pissed off. I would be very mad if a girl lied to me about that. Maybe just try and talk to her about it and let her know that you really dont care if she is or isnt and just tell her that you are giving her this one freebee to admit the truth to you without being mad.