Beautiful cruel Mistress Ambra and Lilli Bayle are worried about their slave's health so they want to give him a medical examination, but in their own way of course! First they examine his prostate by inserting a finger into his anus, then they check the function of his penis by making him get an erection. When the penis is hard they begin to insert a urethral probe. They have a lot of fun doing it so they decide to insert another probe! They tie his testicles and tighten them with a vise and then they make him cum and this is very painful for him!