Goddess Kira had a lot of time on her and she had to make sure that she passed time. It was important for her to dominate the guy and to humiliate him in a way that he had never been before. That is why she chose to use her high heels and her foot worship to do it. He was turned into a foot slave and humiliated for the mistress' fun.
Goddess Leta had asked this guy to do a project for her and she left it for him to handle as he assured her that he was capable of handling it to a high standard and meeting all the key performance indicators. But he failed and in her eyes, he was a loser. For that, he had to be punished and she did this by cruelly whipping him. He learned his lesson.
Mistress CatDeluxe needed to get even with this guy and she felt that she had to do it with foot worship. She chose it because it was easier for her to execute and it would not make her get tired like the other methods. She did not bother to make her feet dirty as she knew that she had dirty shoes which would do what she wanted. That is how she used them to crush and trample this guy.
Mistress Tatjana had looked forward to having the time of her life with this guy but he was not a good lover and she had to punish him for making her think that he was up to the task when in fact, he was not. So she used her foot worship to humiliate him and that is how he learned his lesson and he worked on becoming a better lover to him.
Mistress Saida wanted the truth from this guy but he was not forthcoming. So she had to change tact and come up with a way to force him to do it. That is why she chose to turn him into a foot slave and make him lick her feet as well as her soles. He learned his lesson and he knew that the easiest way to avoid that was to give her what she wanted.
Mistress Tiffany was pissed by her slave and she was further angered by how unrepentant he was. She was pissed about it and she had to make sure he learned to repent for his wrongdoings. So she used her dirty boots to punish him. And she made sure he learned not to do the things that angered her. As she crushed his head with her boots, he regretted why he had done so.
Lady Zora wanted respect from this guy and she had to make sure she got it. He had not been as respectful as she would have wanted and that was not ok with her. So she had to come up with a way to dominate him and make him respect her. So she used her boots and warned him that if he did not respect her, he would only blame himself for what happened.
Madame Marissa came home and found her slave lazying around instead of doing the chores she had left for him. The extremely unhappy mistress noted that it was not the first time the slave was doing it. He had done it before and to ensure that he stopped that habit, she punished him with her feet and her boots. She stomped on his bare chest, inserted her boot in his mouth and she got him to lick her muddy boots.
Mistress Felicia wanted her feet pampered and she was going to be damned if she paid someone to do it. She had a slave and that was one of the things he was supposed to do for her. She forced him to lick her socks first before he licked her bare feet and gave them a good rub. It was so soothing that it calmed her and she slept soundly.
Madame Marissa did not like her slave's cooking. She wanted him to put more effort to it so she punished him. She forced him to eat his own bad food after she had crushed it with her boots. She made him eat all of it despite the danger to his health. She then told him to learn how to make better food if he wanted to avoid such humiliation in future.