This is a mildly amusing book listing weird sex laws past and present, in the U.S. and across the globe. Well, I'm not sure how many of the laws are actually "present" and still in effect. This book has a copyright date of 1992. I can only hope some of these dumb laws have been repealed since then.
This book has an index, and an index always makes me happy.
Gladly, I got this book from BookMooch and didn't pay a dime for it.