Bonk: The Curious Coupling of Science and Sex

Bonk: The Curious Coupling of Science and Sex by Mary Roach
Wonderfully imaginative while still remaining true to its serious investigatory premise. Research does not have to be dry!

Now, one must realize when diving into this investigation of the "ins and outs" of sex, that the lion's share of modern scientific research on sexual matters concerns itself with the elusive female orgasm. If you don't have the requisite body parts, you might not understand everything as clearly as someone who does. 

I can not resist applauding the author for her intrepid investigatory techniques. She does not cheat the reader in any way—in fact, she bravely sallies forth, her husband in tow, and bonks in a MRI machine. It's all for science, isn't it? The experiment would have been a bit more interesting if she did a second run at it with a stranger, just to see if the results were different.