Bella-sora's thread below prompted me to suggest a book I recently read that I thought people here might enjoy:

'Bonk: The Curious Coupling of Science and Sex' by Mary Roach

    from the book description: "... scientists studying sex are often treated with disdain, as though there is something inherently suspicious about the enterprise. Yet through understanding the anatomy, physiology, and psychology of sexual response, scientists can help us toward greater marital and nonmarital happiness. Such altruistic intentions, which the book shares, aren’t the wellspring of its appeal, however. That lies in the breezy tone in which Roach describes erectile dysfunction among polygamists, penis cameras, relative organ sizes and enhancement devices, and dozens of other titillating subjects. Not to be missed: the martial art of yin diao gung (“genitals hanging kung fu”), monkey sex athletes, and the licensing of porn stars’ genitals for blow-up reproductions. To stay on the ethical side of human-subjects experimentation, Roach offers herself as research subject several times, resulting in some of her best writing."

Does anyone have any other book recommendations?