Both men and women should realize that achieving an orgasm from vaginal intercourse alone is very difficult. Stimulating the clitoris, either with the hand mouth, is almost sure to bring on a powerful orgasm in any healthy, aroused woman. In many cases, women may need to be brought to orgasm by their partners before or after vaginal intercourse takes place.
More About Orgasm Gap
Closing the orgasm gap is possible, but not without a little work. Women who don't orgasm regularly during sexual encounters should speak up and communicate with their partners. By telling and showing their partners what they like and what turns them on, women are basically giving their partners a road map to the Big O.