SCIENCE: How Strong Is The Female Sex Drive? “Monogamy is not meant to satisfy the female libido. It would be far-fetched for anyone to argue that, especially when the evidence runs in the opposite direction: Monogamy kills eros. But monogamy is a cultural constraint aimed at protecting the natural result of sex–namely, children.”

Monogamy doesn’t always kill eros. In fact, it’s interesting how quite a few of my long-married friends report how much better their sex life has become over time.