Many men treat their orgasm as the culmination of a sexual experience. The sex finishes when they do, basically. This is a deeply flawed system. Only 1/3 of women achieve orgasm during intercourse (and that number may actually be on the high side) compared with over 90% of men. So not only is foreplay important, post-play should be a thing for you, too. If you're done and she's still not made it, don't just call it a night. Your partner will feel more valued if you make it clear that her pleasure is as important as yours and that you're willing to give it equal billing. And if you don't feel like you can do that? Grow up, fast, or we're revoking your sex card.