Mistress Zephy was repulsed by how this guy acted as a know it all. He tried to interject all the time and to make things about him. That pissed her off so much that she had to dominate him and show him that it was not about it and he had to stop that habit. He got scared as she trampled and stomped on him with her boots and he assured her he had learned his lesson.
This guy was threatening to be too big for his own shoes and mistress Zephy felt that he needed to be punished. And that is why she chose to put him in his place. She did so using her boots as she turned him into a human foot rest and then she also had him lick and smell her feet. He learned his lesson the hard way and he changed.
Mistress Zephy did not like the way in which this slave acted. She felt that he deserved to be put in his place and she was sure her boot femdom would help with that. It did as she asked him to lick her soles and she even spat on the soles and ordered him to lick the spit off the soles. He learned his place and they never had any issue again.