Take 37 minutes with Mistress Dia Zerva as She applies Her skills to a chair bound slave friendly. Her muscular calf's bulge as She steps into the scene and begins with his feet. Bastinado is followed by a flurry of suction cups that look like udders on the huge submissive. She is enormously amused making him produce cow sounds and then strips off Her dress and gets down to business. Tease and denial and a ruined orgasm later, Her animal is fully trained.