Mistress Anja had a good name to protect and she was not going to allow this guy soil her good name. She had to punish him when she realized he was out to soil it. She asked her friend mistress Valentina to help her punish the guy and after a short discussion, they settled on femdom toilet as the best way to punish the guy. He ate their shit and learned his lesson.
This guy was unprepared and mistress Anja did not want to deal with him as she was sure that he was not ready. So she used her shit to punish him and it was cruel for him. He never expected what she did to him but she did not care what he expected or did not expect. He had to do what she said and he had to prepare well for it.
Mistress Anja needed to dominate this guy and she did it with her shit. She made sure it was hot shit direct from her asshole and he had no choice but to do it as she wanted him to. He cried and begged her to stop but she did not. She had fun laughing at him and having fun at his expense and she did not care about anything else.
Mistress Anja felt that this guy was too quick to lose interest in things and she did not want it to continue. She wanted it to stop and so she had to make him get an incentive to stay the same. To not lose interest. So she used her shit to dominate him and that is how he learned never to piss her off with his lack of or loss of interest.
Mistress Anja needed to punish this guy and she did it in a way that the guy had never experienced before. She was doing it to teach her friend how to do it. Her friend needed to learn how to turn a slave into a human toilet and that is what mistress Anja did before she let her give it a try. For the mistresses, it was fun. But for him, it was not.
When this mistress asked this guy to lick her ass, he refused. He did not know that he had been commanded to do it as opposed to being begged to do it. He realized his mistake when it was too late and now instead of licking her ass, he had to drink her pee as well as eat her poo. He had to then lick her ass as she had asked.