Mistress Victoria wanted to dominate her partner because she had realized that he was not serious with the work they were doing. He was fond of doing his own things and not paying attention to what they did. She felt that he had left all the heavy lifting for her and she did not like that. That is why she had to punish the guy and she did not hesitate to do it.
Mistress Cecilia and mistress Viola had realized that this guy was not the kind of person they wanted. He was lazy and he was entitled. So they had to do something about it. They chose to degrade as well as humiliate him and they did it with their dirty soles. He wished he had never met them as they cruelly humiliated him and made him realize that they would not allow him to continue being lazy and entitled.
Mistress Cecilia does not like to take crap from anyone and when she noticed that her new slave was used to pissing her off, she had to make him realize that he was doing himself a major disservice. The mistress cruelly forced the guy to lick the soles of her sneakers and when he was done doin git, she kicked him in the face before she trampled him on the head.