look dude as far as wemon go in sexual arousal there kinda like ovens you cant just be making out with them acting hesitant to do anything with them thats not what an alpha would do. he would make the next move and she would follow. shes not the leader you are. make your moves you might get rejected but youll never know if you dont try. and i doubt it will cause a break up i mean couples have sex. and further more if you continue to get rejected on the sex issue it might be something you really just need to be upfront with her about your not doing your self any favors in a relationship your just sexually frustrated in all that will cause you to do is end up cheating...

Tried Escalating...She doesn't let me lift her shirt. I can get underneath it but can't lift it. She also doesn't let my hands go down her pants in the front or back, although she lets me play with her ass.
She still continues to makeout endlessly with me.
What should I do?

Any ideas why this would happen? The only thing I can come up with is that she's grown too comfortable with the way things are, and isn't allowing the relationship to change into a sexual one. Is this fixable? Or did I mess up too bad and wait too long to fix it?