Vera is a bbw mistress and she does not like dealing with people who are unreliable. This guy proved to be unreliable and she did not like it. She had to act in order to make him change and be reliable. She chose to use her bbw weight to deal with him and to trample him. The pain was out of this world and that is how he got to change.
Mistress Natasha did not like how rude her new slave was. She could not understand why he was rude yet she was his boss. He was supposed to learn a lesson so that he did not take anything for granted. The mistress used her bbw weight and body to stomp on his body and his face. She did not let him get away with the mistake he had made and she was ok with the outcome of it all.
Mistress Vera does not have to look far for something to use in dominating or punishing guys whatever the case might be. She has her own BBW body and that is perfect for the job. All she has to do is to facesit on a guy and she will instantly either choke him, make him feel pain or both. And usually, it ends with the person either peeing themselves or shitting themselves.