The gym's personal trainer has a unique method for improving his clients' endurance - making them cross-train on his massive, throbbing dildo. Today, the sissy client is on the receiving end, following the trainer's every instruction. With each thrust, the dildo's thick veins stimulate the client's tight, sensitive hole, pushing them closer to the edge. The trainer's metronome keeps time, their fucking in sync, the client's moans echoing through the gym as they surrender to their sissygasm.