" The stereotype that men have sex for pleasure and women have sex for love is unfounded," says Meston. But while the top 10 show significant overlap, distinctions emerge lower in the list. "Women don't have sex because they're IN love," says Meston, "But because they're protecting love, stealing love, trying to create love, or doing it out of duty."
One participant said, "My mother taught me to have sex with my man, or someone else will."
Another said, "I'd rather spend five minutes having sex with him than listen to him whine and complain about how horny he is for the next two days. "

― Garth Sundem , Brain Trust: 93 Top Scientists Reveal Lab-Tested Secrets to Surfing, Dating, Dieting, Gambling, Growing Man-Eating Plants, and More!