Mistress N does not like people who backbite. She realized that her slave had done so and she was not ok with it. She felt that he had to learn to do things better and so she used her trampling fetish to punish him and torture him. The poor guy had no choice but to endure the pain and humiliation of it all. And he learned not to backbite.
This mistress and her friends do not like bullies. When they caught this guy bullying others, they had to do something about it. They went to him and they humiliated him. They threw him down and descended on him with their shoes. They trampled him cruelly and not even his cries of pain were enough to convince them to let him go. He cried and begged the mistresses to let him go promising never to bully again.
Lady Natalie and lady Elizabeth saw hard trampling videos online and they appealed to them and they wanted to try them. The mistresses rented out a slave since they did not have one and they had fun humiliating them. The mistresses used their bare feet and stomped on the loser and had him in a lot of pain. He was lucky they did not trample him with their shoes or heels.
Drew knows that not every man is into being humiliated and degraded. But she also knows that she is hot and many men want a piece of her ass. And she makes sure that she uses that to get what she wants. She makes them think they will get a piece of it and she gets her chance to humiliate them by trampling them as hard as she can anywhere she wants.