So I recently got a copy of this book:
The book is Sex & God by Darrel Ray. He was kind enough to send me a copy (you rule!)
Darrel Ray did a study where he surveyed 10,000 secularists and their views on sex, so I bet some of this book will be partially based on that.
You can get your own copy of Sex & God on Amazon, btw.
Edit: Bracin’ Mah anus.*
*Not a reference to anal sex