EntityQ625369· pop 41· linked from 961 articlesmistressSign in to savefemale who is in a sexual relationship, where the other or both parties to the relationship are also in another committed relationship (usually marriage)Connectionsinterpersonal relationshipEntitypolyamoryEntityconcubinageEntityHarperCollinsEntitysugar datingEntityEnglandEntityloveEntityfamilyEntitymarriageEntityPopeEntityOld TestamentEntityfriendshipEntityInternational Standard Book NumberEntityCatherine II of RussiaEntityDaniel DefoeEntityRomanticismEntityGeorge EliotEntitywifeEntitydivorceEntityweddingEntityCategoriesFemale beautyHeterosexualityMistressesPolygyny