Mistress Sveta caught her slave jerking off to her photos and she was angry. She did not want someone with perverted tendencies staying in her house. She punished him to make sure he would never do what he had done again. She made him lose her photos and she punished him by riding him like a pony and whipping him as cruelly as she could manage to. He never did it again.
Mistress Sveta had never ridden a pony before and she was dying to. She could not get one in her house so she turned her slave into one. She had fun making the slave carry her around the house. She would whip the slave painfully when she felt that he did not do what she wanted or that he was slow. It was painful for the slave but fun for her.
Mistress Gaia and her friend were not pleased with what these losers were doing. So they sought to punish them and they did it humiliatingly. The mistresses settled on pony play training as their mode of punishment. They rode them as ponies and they broke them as it was manual labor. They had to pull makeshift carriages as well as be ridden like human ponies before they were let go.
Mistress Anna is an adventurous girl and she loves to try different stuff. She wanted to try pony play training so she got a loser to try it on. She rode him for hours on end and she nearly broke his back with her weight. She whipped him to make him endure the pain. The loser was humiliated and tortured but the mistress was having the time of her life.
This slave was not meeting mistress Sheena's expectations of him and she was pissed. She had to teach him a lesson and she forced him to do as she wanted. To signal how serious she was, the mistress forced the loser to be her human pony and she rode him in the house. She even whipped him when he got tired and that got him going again. It was brutal.