These mistresses trampled their slave with their high heels but they were not done. They turned him into a human pony and enjoyed breaking his back with their weights
Denise loves horses and got an inexpensive way to have and maintain one. She opted for a human pony instead of a real one and she whipped it and trained it to act like a real one
She made him smell her stinky ass. And when he thought she was done, she used a whip to ride him like a pony her enormous weight notwithstanding
She made her slave carry her on his shoulders and tied a leash to him. But that was not all. She turned him into a pony and rode him
Jana is an unforgiving mistress. She did not forgive her slave when he messed up and when the time was right, gave out her punishment which was turning her slave into a human horse
When this slave messed up, she did not know that Mistress Janis would punish her that hard. She turned him into her human pony and rode him at her own pleasure
Denise's boyfriend had messed up and wanted to appease her. So she decided to humiliate him by making him her human pony and he had no choice but to agree
To make sure that her pony behaved and rode the way she wanted, Annabell brought along a whip which she used to great effect and made the pony do as she said
Katja was training her human pony how to ride properly. So she mounted it and whipped it whenever it did wrong or did not follow her precise instructions
Lady Cathy wanted the best way to dominate her slave and she decided to use him as her human pony. She's a BBW so she would do some damage