This chauffeur had been careless and these mistresses did not want to have such a slave. Mistress Samantha, mistress Dula and mistress Elektra had to torture the guy and they did it with their shit and with their pee. The guy learned never to mess with them and he also learned never to be careless as that was going to be catastrophic to him. It was a painful lesson that he never forgot.
Mistress Samantha found out that this guy had done the opposite of what they had agreed and he was totally inconsiderate in all he did. She was pissed about it as she had put a lot of money to what they had agreed and she stood to lose a lot in the process. So she had to make sure that he learned his lesson and she did this with her fisting femdom. He had to endure the pain and humiliation of it.
Mistress Samantha wanted to test whether this guy was suitable for what she wanted him to do for her. So she used her fisting fetish to test him and he passed the test even though she fisted him painfully in the ass. He had a high threshold for pain and she was impressed with him. She offered him the position immediately when she was done testing him and she knew he was up to the task.
Mistress Samantha noticed rebellious behavior in her new slave and she did not like it. She felt that he would be a problem later on and she did not want to take any chances. So she used her fist to fuck him in the ass and she made him feel pain he had only read about and that made him change and he never angered her as he knew what she could do to him.