Lady Cathy wanted to shut this guy up and she used her head crushing fetish to do it. She did not have any issue with him and she felt that the best way to achieve her aim was to crush him and to smother his face, which is what she eventually did to him. She did not care how he cried or how he begged for mercy. It had to be done.
Lady Cathy felt that she was getting a raw deal from her slave and she had to punish him for it. That is why she did what she had to do to make sure that she punished him and taught him a lesson. She did this by forcing him to lick her feet. He was condescending and she was not going to accept that. He had to change and he did.
Lady Cathy loves when her foot slave worships her feet, she sits on the couch relaxing when her slave comes to her bare stinky feet and begins to lick her dirty soles clean as his hands are tied behind his back. This foot femdom loves humiliating her slave as she watches her pathetic slave sucking her toes laughing and smiling as he sits on his knees licking her feet like an animal.