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Understanding Female Sexual Propensities From a Taoist Tantra Perspective Through Facial and Breast Diagnosis
 

In the Taoist sex manual Yu Fang Mi Chueh (Secret Codes of the Jade Room), reportedly written around 4 A.D., it states that it is possible to determine a female’s sexual propensity by scrutinizing her face and other body features. These may or may not be accurate for everyone, you will have to determine this for yourself. But here they are: