Thank you for all the feedback. I know I'm a stereotypical male, because, in the end, it's all about instinct and natural urges and drives, and we're all the same but for the 1 in a million, who i'm not. But she probably thinks I am...
This evening (It'll probably be early morning for your timezones

) I'm going to gather the courage to tell her what I feel like and cut all the "who cares about sex" crap.
I don't know how to make her understand.
Or what about oral, or masturbation? Is she as adverse to those too?
. She's most definitely going to find those awkward and strange.
I've seen girls like her change their views radically after going through their first experiences, but I just don't want to take the chance on her, because I care way too much about her to disrespect her principles. I just think it's wrong that *she* denies herself a great pleasurable experience, and I want to ease her out of her narrow thinking, I just don't know how to.
P. S. Today's Romanian urban society - at least the segment we're part of, me and my girlfriend - is almost completely atheist, so there are no Christian views involved. She's probably been taught by her parents that sex is wrong, because they still see her as an immature child. They really don't trust her to be responsible, though - in all matters but this - I haven't seen a girl her age to be so mature in thinking.
Sure, her parents don't dig me either, a fact only based on me being her boyfriend, since otherwise my academic achievements are far over average (so are hers), I'm an aspiring artist and a three times published author. Unfortunately, my expectations are just as high... Especially after four (I started at 15 - it came naturally) years of a balanced life (taken into account I'm not a geek or a sex maniac), with - as mentioned earlier - sex on a regular basis.
She keeps telling me "sex is overrated", but how could she know?
Frustrating, frustrating...
Really, no first-hand experience? Maybe some deep psychological stuff?... I wish I were better at people.