"Oh Doris Lessing, my dear—your Anna is wrong about orgasms. They are no proof of love—any more than that other Anna's fall under the wheels of that Russian train was a proof of love. It's all female shenanigans, cultural mishegoss, conditioning, brainwashing, male mythologizing. What does a woman want? She wants what she has been told she ought to want. Anna Wulf wants orgasm, Anna Karenina, death. Orgasm is no proof of anything. Orgasm is proof of orgasm. Someday every woman will have orgasms—like every family has color TV—and we can all get on with the real business of life." -Erica Jong
Orgasms should never be confused with love. One of the most destructive elements that can occur in sexual assaults is orgasm. The victim can be scarred by that, believing that meant acceptance of the act on some level, leading to a shame that is hard to shake even after years of therapy. An extreme example, but enlightening.
This gets to the myth that men can't be raped because, if raped, they couldn't stand to attention. And, similarly, the way our society (the US) goes much lighter when punishing an adult woman who commits statutory rape against boys vs. an adult man who does so against girls.