Which in turn reminded me an old joke item that I made for an old campaign of mine that's giggle-worthy. I'll try to convert it to pathfinder.
Aura - Strong Divination; CL 15th
Slot (None; Book)
Price: 27,500 gp (+1), 55,000 gp (+2), 82,500 gp (+3), 110,000 gp (+4), 137,500 gp (+5)
Weight: 5 Pounds
"Oh, OH GODS- WHAT THE HELL? . . .Actually- it's kind of hot.
-Alicia Silverleaf, Assistant Librarian of the Great Library of Greenoak University
This book has the distinction of every translation ever made is always at least titled in the original orcish, mostly because the closest Common translation of the title is "Good Fuck Book". As insane and mind-numbingly horrifying as it sounds, the Stru'kak'en appears to be the Orc Kama Sutra.
The book itself has two parts, the first part tells the story of Tormak. Tormak, a rather famous orcish folk hero, is described doing many heroic feats such as redirecting rivers so that orcish villages don't starve, defending his clan from dragons, and even slaying a dwarven war god. The part of the legend of Tormak that the Stru'kak'en differs from other tellings of the legend of Tormak is it claims that over the course of his life he had sex with over 35,000 females, producing 10,000 sons and 10,000 daughters. For those of you doing the math, that requires 2 more partners every day for almost 50 years.
The second part is supposedly his notes on how attract females, how to please females in bed, and his theories on how females can do the same to males. The techniques and positions suggested are surprisingly complex and usually structured and presented as prayers to animal totems. With pictures of course. Few non-orcs haven't been surprised with just how sensual the book seems- even if the largest illustration of the book shows two orcs fucking like squirrels.
As for the benefits of the book, it is said that if someone reads it in it's original Orcish from cover to cover Tormak grants a fraction of his animal magnetism and, at least in men, his technique. Women who read the book are said to receive their boon from Fahlia, his oldest daughter who is said to have had similar numbers of sexual partners in the legend- though she only had 1 son, who would be a folk hero in his own right. A plus is permanently bestowed upon all who read the whole Stru'kak'en from cover to cover for checks dealing with seduction and pleasing partners, equal to the bonus connected to the book.