how old is your girlfriend (who doesn't masturbate)?

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what dr. house brings to medicine, i bring to everyday life (an extreme dose of cynicism), don't listen to the curmudgeon!

Shes 18

Of course that is relevant. She can't orgasm because she WANTS to orgasm too badly. Wanting to orgasm creates pressure, but she needs to be completely relaxed to orgasm, and that means having no pressure.

A good way to overcome this is to have sex at night, of course she fails to orgasm, but you keep sleeping together, then wake her up in the night and start having sex again...the second time there is much less pressure because she already conceded she wasn't going to orgasm that night, and she's also in a dreamy state which makes her more comfortable.

The good news is that once you break through the barrier, it will become easier and easier for her to cum, and once she gets in the habit of doing it with you, it will come just as easily and naturally as it is for a guy to cum when he's masturbating alone.

Good luck

Awesome! That sound's a lot like what my problem was.
Up until 2 weeks ago, I hadn't ever had an orgasm with a girl myself. I just couldn't finish.
Once I did though, I haven't had a problem since