Lady Nora knows how to control and that is what she did to this loser. She knew that he loved to do crazy things and she had one in store for him. She was sure he had never been turned into a foot slave and foot dominated the way she did to him but she did not care. All she was interested in was to make sure that he licked her feet, her soles and endured her trampling.
Lady Nora needed to dominate this slave and she settled on using her feet to do it. She cruelly trampled the guy and she laughed at him. He wished that he had never pissed her off but it never worked out the way he had thought and the mistress had to punish as well as torture him. That is why she used her foot domination to pass her message as painfully as possible.