Mistress Alice was angry at the way in which this guy had acted. He had refused to follow her instructions and he had ended up messing up big time. She was furious at him and she had to make sure he listened to her next time. That is why she went out of her way and she cruelly dominated him by turning him into a human pony. It was degrading and humiliating.
These pony slaves needed to be punished and mistress Cristianali did not hesitate to do so. The mistress asked her friend to join her and the two of them had fun torturing these human ponies cruelly. They had them crying and begging them not to punish them and instead give them a second chance for them to make things right. The mistresses ignored those requests and let them get the punishment they deserved.
Mistress Claudia was not messing around when she had her husband turn into a human pony. She felt that he was taking a lot for granted and she wanted things to change. So she forced the guy to do things her way and to stop taking things for granted. He had to learn to consult first before he took some decisions and before he did some things. He learned his lesson.
Mistress Amy wanted to dominate her landlord because he was a pain in the ass. And he was trying to hit on her. So she invited him to her house and when he showed up, she turned him into a human pony. She rode his back all over the house and she did it for a long time until he learned to stop all the things she did not like.
Lady Sandy wanted to show her friends how to dominate and she did it in the stable. She turned the loser into her human pony and she forced him to carry her while he was naked and doing it on his sand yet he was on all fours. Whenever he hesitated or did not do things as expected, the mistress did not hesitate to kick him and she did not care where the kicks landed.