So off to the swingers club they go or maybe just having a 3some to start, about the same time after most of the males are spent for the night, the girls discover one another.
Cuckolding comes along eventually, it doesn't need to even be addressed, maybe the wife has a secret lover maybe not. Theres a scope of sexual deviations which the female will do to her mate, husband because she now has control, completely and totally.