I agree with what lilith said. It is entirely possible that your girlfriend IS having orgasms, but that doesn't mean she can't learn to have a more satisfying sexual interaction. Let her take the lead, but don't go all passive or anything. I think if she is going so fast you can't keep up, that means she hasn't mastered the art of slowly building up the passion. Learning how she orgasms *best* the way things are now is a start - then you can both work together to find ways to slow it down, find other "patterns" of getting pleasure from the experience.

I went through a similar experience where I would just get into this frantic pelvic thrusting - it would get to an orgasm, but it wasn't the best sex ever, if you know what I mean... My boyfriend would put his hands on my hips and gently slow me down, but guide my movements in the same pattern I had been going already. Just slower... then he'd work his own movements to compliment mine. Had to use lots of lubricant at first, until I got the hang of learning what would feel good and getting turned on by the anticipation alone...

Good luck!

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