This mistress values her time and when this guy wasted her time with things that did not help her, she had to show him how valuable her time was. She did this by forcing him to undress and trampling his dick and especially his nuts. This she did with her sneakers and she enjoyed how he cried in pain and begged her for mercy promising never to waste her time again.
Goddess Sheila is the kind of person who does not care about anyone or anything. If you mess with her, she has to punish you. This guy did and she did not care that he was significantly older than her. She made him a sneaker slave and he had to lick and smell her sneakers until they were clean. That was when she let him go and warned him never to mess with her again.
When mistress Natasha noticed that this loser was becoming unruly, she had to put him in his place. She did this by forcing him to lick her shoes and in particular, her soles. That took the slave by surprise and he did not know what to do but by the end of it all, he had gained a new respect for the mistress and he did not disobey her again.