In this intense BDSM session, a dominant mistress trains her new submissive in the art of cocksucking. With a mouth full of spit and a throat ready for choking, the sub learns the hard way what true humiliation feels like. As the session progresses, the mistress brings in a surprise: a bi-curious woman eager to explore her fantasies. The sub is forced to service both, leading to a messy, degrading threesome that leaves him gasping for air.