Lady Natalie and Lady Elizabeth wanted their slave to be fit. They did not want a couch potato who only did house chores and nothing else. They wanted a slave who could handle a lot of other things. They forced him to work out by trampling and torturing him. They crushed him using their bare feet and made him stew in the pain of crushing his face and jumping on it as well as doing the same to his balls.
Mistresses Meg and Britney were pissed that this guy wanted to have a threesome with them. They had never imagined trying something like that and they felt insulted. They had to punish the guy and teach him better manners so they crushed him using their bare feet and made him enjoy the pain of it all. They did it together at the same time to make it even more painful for him.
Lady Samantha wanted her old slave to know that she meant business. But since he was old, she did not want to give him the same treatment she gave her younger slaves. So she used her bare feet to crush and trample his face. She made him lick and smell her feet too and luckily for him, she decided to use one foot and not both of them as that would have been even more painful.
Madame Marissa does not like deceitful slaves. When she realized her new slave was, she had to make sure she taught him a lesson as soon as she could so as to nip that habit in the bud. She tied him up to render him helpless and she crushed him using her boots. She removed her boots and trampled him all over his body using her bare feet and it was as painful as she wanted.