Lady Mephista has her patient strapped down to the bondage chair, ready for her cruel ministrations. His cock is locked in a super tight metal cage, straining and leaking as she teases it, pulling his tongue and nipples taught with the medical clamps before inserting the inflatable rubber gag and pumping it up tightly. She then works on the nipples individually, clamping, pulling and experimenting, noting his reactions to the stimuli, releasing his hard dick so she can perform CBT for even more response, as the electrobox pulses through his hard shaft. After noting the results of her experimentation, Mephista attaches the Venus2000 milking machine, on a slow stroke as she uses a slow drip feed of nectar into his special gag and left for the rest of the day, as she attends to other projects.