2,000 Years of Bizarre Sex Advice

"Put What Where? 2,000 Years Of Bizarre Sex Advice" is the title of a book by John Naish that reunites all sorts of sex advice given along time, the oldest ones going as far back as 300BC. Some of them are funny, some strikingly still actual, and some are from the "don't try this at home" category.

John Naish explained the intentions he had when writing the book: "Every generation thinks they invented sex. The fact is that our earliest known manuals were first written by cavemen!
They provide what I like to call a naughty roadmap of civilization!
Amazingly you'd actually be surprised how relevant many of the tips are today. They could easily be used in Cosmo!
But alongside the relevant elements there are also some definite 'don't try this at home' moments."

To quote only some examples of funny sayings very seriously put:
-About the frequency of sexual contact, "Confidential Talks With Husband and Wife" said in 1900 that "The ordinary man can safely indulge about four times a month. More than that would be excess for a large majority of civilized men and women."

-In "Disorders of the Reproductive Organs" in 1858, it is said that "the majority of women (happily for them) are not very much troubled with sexual feelings of any kind."