This mistress was not going to let her husband get away with flirting with another woman as she watched. She had to make it clear that he would not cheat on her and to make him realize she meant what she said, she made him lick her muddy shoes. He was shocked but he knew she was dead serious and so he licked them but more importantly, he changed like she wanted.
Mistress Zora found out that her slave was not easy to tell something as he did not listen. She had to teach him to listen and to take instructions. So the mistress did this by forcing him to lick her muddy shoes. He was humiliated and dominated but he learned his lesson the hard way and he did what she asked him to. He never messed again as he knew what would happen.
Given that her slave had messed up, this mistress knew that she had found someone to clean her shoes. It was not part of her slave's job description but she knew that he had to do it because he had pissed her off. So the mistress forced him to lick them clean and he had to do the same to the soles as well. He felt like puking but could not.
Mistress Anfisa wanted this loser to get some sense in his head and that is why she used her muddy shoes to dominate and to torture him. She had a great time torturing him and she ignored how humiliating it was for him. He tried to beg her but she did not listen to him. She ignored him and made him lick the boots until they were as clean as if they had been washed.