This mistress lives in an apartment and as such could not have a horse in her house. She turned her slave into one and she had fun riding him in the house. She even had a whip at the ready to punish him if he did not tow the line. She forced him to do all she wanted and degraded him and tortured him painfully as he had to carry her around for hours.
Mistress Jamie-Kate did not have anything better to do so she humiliated her slave for fun. She turned her slave into a human pony. She rode him and even pretended to feed him by making him smell her shoes. She tied his shoe on his neck and let it dangle to his nose and he had to smell it as she rode him like a pony. It was humiliating for him but fun for her.