Mistress Agma and mistress Jucy had to get info from this girl and they decided to humiliate it out of her. That is why they chose to trample as well as humiliate her using their feet and socks. The socks were stinky but she could not do anything about it. She was forced to lick them clean and she did it to avoid pissing them further. And she gave them all the info they sought.
This mistress found out that this guy was a spy and she did not like it. She did not want any spy near her and since she had caught him, he had to do what she wanted which was to tell her who he worked for, what their mission was and what intel he had collected thus far. He told her after she choked him with her stinky and sweaty socks.
This mistress was working remotely on her laptop when her slave interrupted her. She had asked him not to do that but he seemed to have forgotten and done it and the mistress was pissed. So she punished him cruelly by forcing him to lick her feet and endure her trampling while she worked. That was to ensure that he did not disturb her until she was done with her work.
Mistress Mara was out to dominate and to humiliate this guy and she did so using her socks. She made sure that her socks were smelly before she used them to degrade this loser. The mistress laughed at the guy as he licked and smelled them and he made faces as he did it. She did not care what he was going through. He had to do things her way.
Mistress Emma made her boyfriend lick her socks and her feet while she played video games. He had pissed her by doing things behind her back and she was not ready to even talk to him so when he tried to explain himself, she humiliated him by forcing him to lick her socks and her feet which she made stinky intentionally in order to humiliate him and teach him a lesson.
Madame Marissa felt that this slave took her for granted. He did not act like a slave and he acted more like the owner of the house. She could not stomach that so she punished him and she did it using her bare feet. She asked him to lick her socks and she even made him chew them. He was humiliated but at the end of the day he learned his lesson.