When I stumble upon words like “sex” or “seduction” or “flirtation,” I tend to keep reading.

I don’t think I am alone in this. Sexuality is as basic to humanity as hunger or thirst, but—at least in our society—sex is far more influential. From Burger King to Old Spice, advertisements are rife with innuendo. Almost all comedy movies include sexual humor, and I cannot remember the last time I bought groceries without seeing magazines about sex and dating at the checkout lane.