Lady Scarlet needed to make sure that this guy stopped being judgmental. He was always judging her and she did not like it. That is why she chose to use her shit to deal with him. The mistress made sure she tied him up and that he could not resist what she wanted to do to him before she cruelly had him eat her shit as well as drink her pee.
Lady Scarlet did not want to deal with anyone who was out of control and when she noticed that this guy was, she could not comprehend it and she had to dominate him for it. That is why she chose to do what she did and she degraded as well as humiliated the guy for it. The guy cried but the mistress did not care about it and had to ensure he ate the poo and drank pee.
Lady Scarlet loves to dominate new slaves as a way to make them realize that messing with her was not in their best interests. It was also a way to make them fear her and always follow or do whatever it is that she wanted them to do. And after using shit to dominate this loser, she knew the slave had learned his lesson and would not mess with her.
This guy talked shit about these mistresses and he was shocked when they used shit to punish him. He did not expect such kind of punishment and that is why he was so shocked. But his shock did not help him as the mistresses used their shit to teach him never to talk shit about anyone. He tried to plead for mercy but the mistresses ignored him and did what they wanted to him.
Lady Scarlet was seduced by this guy and she could tell he was really into her. She knew she could try the scat fetish she wanted with him. So she told him she would fuck him if he would try scat femdom with her. He asked what that was but she told him he would find out. He agreed and was shocked that he had to eat her poo but since they were both naked, he ate it knowing he would get to fuck her.