It’s hard to top cadavers and the paranormal, but in Bonk, the best-selling author of Stiff and Spook applies her signature blend of science and humor to the study of sexual physiology. She watches pig insemination in Denmark, studies the orgasm obsession of Marie Bonaparte, visits Egyptian prostitutes, and even volunteers for some experiments. And she dedicates her work to the sex researchers: “Their lives are not easy. But their cocktail parties are the best.”