Mistress Dark loves it when a slave gets a good punishment. This one deserved it because he was lackluster in everything he did and she did not want him to infect the other employees. So she took it upon herself to show him that he would not be allowed to continue that way and so she pooped on him and had him eat all of it before she let him go.
Goddess L did not like how nosy this loser was being and she knew it was better to punish him now than to wait for him to do it again. So the mistress baited him and when he took the bait, she turned him into a human toilet. He had to eat her shit as well as drink her pee. He stopped being nosy as he realized that it cost him.