Same as I have read: most women cannot orgasm with vaginal sex. It usually requires oral sex involving the clitoris and other parts. This has been true with most of my partners. Although out of my partners that really know themselves, they prefer vaginal sex doggie style, which helps them orgasm.
Sex therapists also report that, for most women that have major problems with orgasm, the problem is mostly they cannot let go and have fun.
So I've given you some issues to look at. Talk to your gf. Be open-minded. Find out if she wants you to do something different. It could be something simple as, the skin on your hands is too rough and you have to fix that.
Last edited by bulrush; 07-11-11 at 03:49 PM.
I have a long time interest in psychology, specializing in relationship dynamics for 30 years.
(Please note, we give the best advice we can based on the information given in a post. For better advice, please include the age of all romantic partners.)