Left Alone: Mistress bound her Slave to an EStim Milking Device to make him Cum in the Water

What a difficult situation for this restrained man. Having failed as a servant before, his mistress decides to secure him to an electric stimulation milking device, forsing him to climax into water. This time, however, she is especially harsh—after activating the machine, she leaves the room. Helbless, he has no choice but to wait for her return while the device continues its relentless stimulation. It doesn’t stop even after he reaches orgasm, as there is no one present to turn it off.