Stag/Vixen with hubby in photo.

In general a “vixen” is the female in a male/female couple that include other men into their sex lives AND the vixens partner, generally the husband or boyfriend is present and often fully participates. He's known as a “stag.” For the most part he is more alpha male, usually controlling the arrangement. Vetting the other male(s). Not into humiliation or emasculation.
The Stag not only experiences the physical sexual satisfaction that his vixen wife/GF provides, but there's a psychological thrill witnessing his partner giving that sexual satisfaction to another male she may or may not know.
In short, it's no strings attached wife sharing for the pleasure of the 3 involved

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