Also known as courtesan, lover, milenky
female who is in a sexual relationship, where the other or both parties to the relationship are also in another committed relationship (usually marriage)
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Madame de Pompadour, a mistress of Louis XV, c. 1756 A mistress or kept woman is a woman who is in a relatively long-term sexual and romantic relationship with someone who is married to a different person.
Description
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).