Mistress Amy watched her slave for a while and knew she had to punish him if he was to change. She chose to turn him into a human pony as punishment. She forced him to carry her all over the house for a few hours and he was so tired he could no longer carry her. That was when she let him rest for a few minutes then did it again.
Mistress Milana caught her sleeping instead of doing the work she had given him and she was mad at him. She used a whip to ride his back like a pony. She did it for hours on end and she knew his back was breaking but she pushed him hard and she made him learn a lesson. She wanted him to know that she would not tolerate any nonsense from him.
Lady Karame knew her slave expected her to slap him or trample him after he had made a mistake. She did not want him to get used to one method of punishment as it would cease to be effective. So she surprised him with a pony play punishment. She undressed him, whipped him and rode him like a pony. She rode him for hours on end till he could not carry her anymore.
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.
Princess Serena loves ponies and she enjoys riding them all the time. However, she moved to the city where she could not have a pony. She lived in an apartment where she could not have a pony and because she missed riding ponies, she got herself a human pony. She got a loser and she turned him into her human pony. She rode him all the time and she did it for fun not as punishment.
Madame Marissa wanted to use her smoke to humiliate this loser. She spat on the ground and she crushed it and rubbed it with her boots. She had this loser lick the dirty soles before they were allowed in. She had a great time humiliating the guy and making him do all the naughty and nasty things that she had in mind. He had no choice but to do them as he feared something way worse.
Mistress Anna wanted her slave to learn to do things better so she made him do it. She did this by riding him like a horse. She had never done it before so it was humiliating as well as painful for him. She turned him into a human horse and she enjoyed riding him and whipping him. She rode him for long even when he was tired and made it a real torture.
To make sure her slave respected her, this mistress rode him like a pony. She knew he could do it for a few minutes, but she did not do it for a few minutes. She did it for a few hours knowing that it would break his back. She flogged him when he started slacking and she knew he was struggling. She taught him a lesson and she knew he had learned it.
This mistress rode her slave and did not want to know what he was getting tired. She was testing his endurance so that she would know what sorts of tasks to give him and how to customize her punishments. She enjoyed riding him but he was in a lot of pain because of how heavy she is. She did not want to know about her heaviness because she was on a mission.
This mistress was convinced that if she wanted her slave to learn how to be hard working, she had to be tough on him. She used him as her human pony and she rode him to toughen him. She rode him for so long that his body gave way. He collapsed and she whipped him to get him up again. He had to summon all his strength in order to carry her again.