Listened to the audiobook version of "Why Women Have Sex: Understanding Sexual Motivations - from Adventure to Revenge" by Cindy M. Meston and David M. Buss.
The book is about the psychological and evolutionary motives for women to engage in sex. Their evidence comes mostly from a large survey they conducted in which thousands of women of various ages, socio-economic standings, and sexual orientations reflected on their sexual experiences. Their motives ranged from "I was curious to see how good he was in bed", to "I thought if I had sex with him, he'd stop pestering me", to "I wanted to make my ex jealous".
While the subject matter is acutely interesting, unfortunately I found this book a little dull. Much of the book was devoted to simply reading the comments from their survey. It didn't have the same evolutionary depth as David Buss' other book that I thoroughly enjoyed, "The Murderer Next Door" (you can read my review of that one by clicking).