I finished Why Is Sex Fun? The Evolution of Human Sexuality by Jared Diamond earlier. It isn't bad but apparently a lot of the material in the book was covered in The Third Chimpanzee. In fact, as i was reading it i checked twice that i hadn't listed it on my blog or rated or reviewed it on amazon just to see if it was a reread. So, just because i give it a 4 doesn't mean it isn't worth reading!
I do wonder why this book has this title. That exact question isn't addressed. The majority of the book covers how abberant human sexual behavior actually is and the possible evolutionary advantages or reasons behind concealed ovulation and menopause. It is all interesting but not really extensive enough.