I've read a lot of other women here are having similar issues. I have never been able to ograsm during sex, from vaginal or clitoral stimulation. The ONLY way I can orgasm is with a vibrator or the jet in a hot tub directly on my clit. I cannot orgasm with any ammount of rubbing or anything else. I feel bad for my partners, but thats the way it has ALWAYS been for me. It is a wonderful experience for me when my partner will let me use my vibrator when we are having sex. I feel bad sometimes, like I am telling the other person "Sorry, you're not good enough". But thats not true! So dont feel bad, just talk to your signifigant other and be truthful, you will both be happier!