Ok, I've just learned this today (bless you Tumblr) but sex is not meant to hurt for a girl.

If it does, then it's not because you got "popped," it's because a tear was formed from lack of natural lubrication. So if a guy doesn't make sure you're wet properly, then he's a horny pig with no respect for you. The only slightest possible exception is a virgin boy.

Be careful.