Lady Atropa caught her slave peeping on her when she was taking a shower. She did not like that perverted behavior from him but she pretended she had not seen anything. She called her friend and when she arrived, the two of them turned the slave into a human toilet. He had to eat their shit and do as they ordered as punishment for his perverted behavior. He never did it again.
Mistress Gaia was at home when she heard her slave make a lot of noise. He did not know she was around so he did what he wanted around the house. She was not happy with what he did when she was not in the house so she punished him to make sure he did not think it was his house when she was not around. She used her shit to send the message by having him eat the poo.
Mistress Milana is a one trick pony when it comes to punishing slaves and losers. She only uses her shit to punish and she does not like any other method. She knows how degrading and humiliating it is to use shit to punish and that is why she loves it. She even influenced her friends to also use it when they wanted to punish this guy for stalking them in the woods.
Mistress Kira was minding her own business when her slave came and pissed her off. He disturbed her peace and she could not let him get away with it. She chose to punish him using her poo fetish. She turned him into a human toilet and she made him eat her shit. He was degraded but he learned his lesson and he knew when to interrupt her and when not to.