During intercourse, it is the outer third of the vagina that is most stimulated. Some women are able to orgasm through this vaginal penetration. That is, vaginal orgasm — without clitoral stimulation.
However research has shown that (Shere Hite’s 1976 survey of 3000 women) only 30% of women can achieve orgasm through intercourse. The clitoris, with over 6,000 nerve endings, is more sensitive than the vagina. As such a clitoral orgasm rather than a vaginal orgasm is more likely.
For a woman’s orgasm, her body’s response is the same whether or not stimulation originates from the clitoris or the vagina. An orgasm is an orgasm whether by vaginal or clitoral stimulation. In the large majority of women the position for intercourse and the way in which the clitoris is being stimulated through intercourse is not conducive to orgasm and there is no way that intercourse alone can produce an orgasm.
As such any assumption that it is duration of intercourse or penetrative sex that gives a woman mind blowing orgasms is inaccurate. Instead it is going to be in the man’s ability to relax and not rush the moment instead focusing on lots and lots of foreplay. Sexual foreplay allows a woman’s body and mind to become prepared for the amount of sexual bliss that will soon arrive. Hence we should emphasize foreplay and not downplay its importance.