...counselling man to treat her as a slave while persuading her that she is a queen. - Simone de Beauvoir

A woman alone always seems a little unusual; it is not true that men respect women: they respect each other through their women — wives, mistresses, “kept” women; when masculine protection no longer extends over her, woman is disarmed before a superior caste that is aggressive, sneering, or hostile. As an “erotic perversion,

Dans la femme parée, la Nature est présente, mais captive, modelée par une volonté humaine selon le désir de l'homme.

From primitive times to our own, intercourse has always been considered a "service" for which the male thanks the woman by giving her presents or assuring her maintenance; but to serve is to give oneself a master; there is no reciprocity in this relation.