A cock gets a very painfull treatment. His balls are tied firmly and over the face of the slave, the hot Mistress and slaveslut Karin play a horny lesbian game with eachother. The slave can only watch, he is not allowed a hard on! While the girls play with eachothers bodies, the poor guy cannot do anything else then watch. Untill the mistress jerks him off. With a big dildo up his ass! He almost explodes!