Lady Luci wanted to piss off her slave and so she used her shit to do it. The slave deserved it because he was not being a good slave and she felt it was important to show him what would happen to him if he continued behavior that way. He got scared of what she did to him and that is how he made the adjustments that she wanted him to make.
This guy thought he was smart and that he was able to do whatever he wanted and get away with it. That is why he tried to blackmail mistress April and he had hoped to get a lot of money in the process. But she was smarter than he was and she used her shit to punish him and this was after she had tied him up and whipped him while naked.
Madam Tulpan realized that she had a slave who was prone to messing up and she knew she had a lot of work on her hands. And she also knew that if she did not scare the shit out of him, he would never change. So she taught him how to eat her shit and that is what scared him to the point that he had to change his ways.
Mistress Zephy felt that she deserved a better grade than her professor had given her. She tried to talk to him but he did not respond positively as she had hoped. And that was why she chose to shit on him. He was shocked by what she did and he was scared too as she made him eat her poo as well as drink her pee. He did what she wanted after that.
Mistress Iside found out that her boyfriend had been lying to her and she was not amused. But she knew that she had to do something to make sure he did not feel comfortable lying to her. And so she made him eat her shit and that sent him the message that he would regret it if he ever messed with her. He did not as he did not want a repeat of the domination.
Mistress Natalia had a nosy colleague who was also a management pet and would tell them all that her colleagues did. She did not want that to be a thing anymore and she made her colleague eat her shit. The colleague was scared and knew that she could not afford to continue with what she had done as it would lead to more punishment and humiliation which she did not want.
Mistress Wael had given this guy some work to do for her but she realized that he was an unscrupulous contractor and he needed to be punished. She knew that the best way to punish him and to make sure he did his work the way it was supposed to be done was if she scared him. And she did so using her shit which he had to chew and swallow.
These slaves thought they were smarter and they tried to con this mistress but she would have none of it. The mistress turned on them and she made them her human toilets and fed them her shit. They were shocked at the treatment she gave them but it also sent them a strong message and they learned their lesson by the time she was done with them. They never tried that again.
Goddess Amirha wanted to show this loser that he was the sort of person she was not going to forgive. She was sure that he needed to be dominated and that is why she used her facesitting to torture and to degrade him. But as she facesat on him, she felt that it was not enough and she turned to shitting on him and he was forced to eat her shit.
Mistress Bastienne is the kind of girl who does not take chances when she wants something important. She was sure that this guy had top secrets which she wanted to lay her hands on and since she did not want to take chances, she went straight to dominating him to get the info. So she shit on him and as he ate her shit, he gave her access to the info.