It's no wonder Mulengro really wants to torment this massive muscle man, it's not every day you get to play with such a powerful captive. With ropes bound tight to keep the huge man under control he pulls Derek's arms up over his head, his legs parted for his big uncut cock to hang heavy and thick. The electrodes are soon on his abs, their jolts sparking through his stomach painfully. He can't do anything but endure it and hope the torment ends soon.