Ruyijun zhuan

Ruyijun zhuan (如意君傳),[a] translated into English as The Lord of Perfect Satisfaction,[2][3][4] is a Chinese erotic novella written in the Ming dynasty by an unknown author.

Some twelve years later, the emperor falls gravely ill; while tending to her husband at his deathbed, Wu makes love with the crown prince Tang Gaozong.

[6][7] Dissatisfied with her present sexual partners, Wu, who at this point is a septuagenarian, summons an aide to bring her a Luoyang virgin named Xue Aocao (薛敖曹),[b] who is rumoured to be extremely well-endowed.

[14] As Wu's health declines,[15] her romantic relationship with Xue comes to an end, and they bid each other farewell in a complex ritual involving the burning of genitals with ambergris[16] and the reenactment of various sexual positions ten times each.

[23] Ruyijun zhuan also contains extensive descriptions of genitalia which do "not appear to be conducive to the stimulation of lewd desires"; for instance, Xue Aocao's penis is compared with snails and earthworms,[20] while Wu Zetian's cervix is written to be "like a flower pistil enveloped by a calyx beginning to frondesce".

[36] Similarly, the Nongqing kuaishi (濃情快史; 1712)[37] or Heart-throbbing History of Powerful Passions plagiarises much of the original Ruyijun zhuan,[34] but omits "inappropriate references that detract from the portrayal of sex".