Mary Roach 
Bonk 
The Curious Coupling Of Sex And Science

Few things are as fundamental to human happiness as sex, and few writers are as entertaining about the subject as Mary Roach. Can a woman think herself to orgasm? Is your penis three inches longer than you think? Why doesn’t Viagra help women – or, for that matter, pandas? Does orgasm boost fertility? Or cure hiccups? The study of sexual physiology – what happens, and why, and how to make it happen better – has been taking place behind closed doors for hundreds of years. In this fascinating and funny book, Mary Roach steps inside laboratories, brothels, pig farms, sex-toy R&D labs – even Alfred Kinsey’s attic – to tell us everything we wanted to know about sex, and a lot we’d never even thought to ask.