Auparishtaka is a term used in the kama sutra to describe techniques for oral sex, even stating that eunuchs are the chief experts in performing auparishtaka.

It also describes two kinds of eunuchs, i.e. those who are disguised as females, and those who dress up as males, with the latter being described as the one that is expected to give the most perfect form of oral sex.

In India, where the act is dubbed ‘sucking the mango’, erotic sculptures in bas-relief of people performing oral sex on each other are widely found in ancient temples, including all sexes with any sex.