Lady Cathy did not like how this guy had lied to her. She wanted to have a great orgasm with him but he did not even make her cum. She was pissed at him for wasting her time and she punished him for it. She crushed his face with her ass and given that she is a bbw mistress, she did a lot of damage by sitting on his face.
This mistress was pissed off when this guy made fun of her weight. She was pissed but it did not affect her self esteem like other mistresses are affected when they are humiliated or made fun of. But she had to make sure the guy never did that again so she dragged his ass to her house nearby and she used her big ass to crush him and his face till he begged for mercy and promised to apologize to those he had hurt and never to do it again.