Going against the plate spinning model, I got into relationship in an effort to get laid. In my defense, where I live and at the age I'm currently at (17), girls are unlikely have sex with guys they aren't exclusive with.

The chick is very shy, and while escalation is fine, she begins to become uncomfortable and eventually stops me if I try and push to sex.

I don't believe it is of any fault of my game, more so a problem of hers. Obviously the answer is to try and make her more comfortable, any tips on actually doing that?