The slave is trapped in a straightjacket. Only his dick has been let out to be used by the two Mistresses. Not only is electricity in the air but it will also run straight to the slave's cock, through cables that have been tightly placed around his glans. The two mistresses control the electric powerbox and every time the current is sent to the slave's genitals, he screams in pain and struggles (well, he tries to). But the two Mistresses are quick to shut him up, sometimes smothering his mouth with their hands and gagging him with their fingers, other times, sitting on his face with their perfect latex asses, and other times with their beautiful feet on his mouth. They laugh sadistically, repeatedly. The two cruel beauties make a wonderful team.