Now im sure like most people do before sex we usually engage in foreplay??? And if you know what your doing this will usually result in your partner having an orgasm...
But this doesnt mean that just because she has had an orgasm that the night is over and she is no longer interested, giving her a toe curling orgasm before you have sex can make anything you do once your inside her that much more satisfying. Girls can have multiple orgasms during sex, so if she has an orgasm before you have sex i really wouldnt worry about it as its just the tip of the iceberg