Vatsyayana Kama Sutra Part 2, Chapter 8 : About Women acting the part of a Man; and the work of a Man

Intercourse, what it is and how, positions, various methods, bringing variety, usual and unusual sex, communicating before and during intercourse (moaning), diverse regional practices and customs, the needs of a man, the needs of a woman, variations and surprises, oral sex for women, oral sex for men, opinions, disagreements, experimenting with each other, the first time, why sexual excitement fades, reviving passion, quarreling, keeping sex exciting, sixty four methods to find happiness in a committed relationship

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WHEN a woman sees that her lover is fatigued by constant congress, without having his desire satisfied, she should, with his permission, lay him down upon his back, and give him assistance by acting his part. She may also do this to satisfy the curiosity of her lover, or her own desire of novelty.

There are two ways of doing this, the first is when during congress she turns round, and gets on the top of her lover, in such a manner as to continue the congress, without obstructing the pleasure of it; and the other is when she acts the man’s part from the beginning. At such a time, with flowers in her hair hanging loose, and her smiles broken by hard breathings, she should press upon her lover’s bosom with her own breasts, and lowering her head frequently, should do in return the same actions which he used to do before, returning his blows and chaffing him, should say, ‘I was laid down by you, and fatigued with hard congress, I shall now therefore lay you down in return.’ She should then again manifest her own bashfulness, her fatigue, and her desire of stopping the congress.