In a taboo bi-fantasy, a Femdom mistress shares her cuckold slave with another woman. The cuckold, collared and submissive, is made to watch as his mistress and her lover engage in passionate, kinky sex. He's forced to service both women, his tongue and mouth used to pleasure their pussies. As they cum, he's commanded to clean their fluids, following the strict cum-eating instructions given by his mistress.