Mistress Milana was dying to try shit fetish. She had heard of it and all her friends had tried it except her. She went and rented a slave and she did not waste time getting down to business. She forced the slave to eat her shit and she had him lick her asshole. He was her toilet paper. When he was done, she made him drink her piss before she left him.
A toilet slave is only existing to suck and swallow, every time his mistress sits on her toilet chair above his face and shits her turds out of her intestines. No one's interested in his useless cock, but he knows, that he's gonna receive a punishment for bad work, that's far beyond his pain barrier. He's the only one that is interested in his cock, and so he defends it from punishment by chewing and swallowing every piece of shit. A good toilet slave can avoid punishment. Maybe.