How to Have a Vaginal Orgasm
The Sexademic gives advice to a woman who wants an orgasm from penetrative sex, and suggests that pressure may be better than friction.
… If you want to experiment with vaginal stimulation, keep in mind that the vagina responds more to pressure than to friction. That whole in-n-out, pumpy pumpy penetrative sex usually provides more friction than pressure. Try having a partner take his fingers and make slow wiping and pressing motions inside of your vagina. (Remember: the outer 1/3 of the vagina tends to be the most sensitive). During penetrative sex, instead of thrusting, your partner can try moving his hips in a vertical circular motion…like he’s painting circles with his hips. Read more
I mention the above technique in my post How to Properly Screw a Woman. Another technique to try is the Friction Zone Technique, which is more of an up-and-down motion. If you’re a woman who doesn’t have orgasms from penetrative sex, have your partner try the techniques in these two posts instead of the old “in-n-out.” You may be in for an amazing surprise!