Lady Nina invites Dominatrix V to the Mansion to help torment her leather sack enclosed slave. All that is exposed are his nipples and cock, they waste no time in trying various nipple clamps and testing his reaction to the different levels of pain. Mistress V checks his deep throat skills with a large dildo, pushing it further and further into his mouth, making sure the gag reflex is well suppressed. The slave is finally taken out of the sack and placed on the floor, used as a foot slave and trample mat.