Madame Marissa tried to ask this guy about her debt but he conveniently forgot about it and pretended not to know what she was talking about. The mistress got pissed and she used her boots to remind him what she was talking about. He was shocked as she trampled him and she got him to lick her boots and especially her soles while he was still in a lot of pain.
Mistress Ava Austen and her friend mistress Ava Black love pain and they love it, even more, when they are the ones inflicting it. This guy tried to get them to have a threesome with him but he ended up regretting asking them for it because they had fun with him but all the fun was with them and he did not get to share in the fun. Just the pain and misery.
Goddess Nika was fed up with her slave always forgetting what he was told. She did not want to keep staying with a forgetful slave so she forced him to do the kind of stuff she knew would change him and have him remember things. So she wore her boots and she used them to trample and stomp on him. He never needed to be reminded again after that trampling.