This guy was a colleague to mistresses Lana and Joanne. They did not want him to continue being a pain in the ass so they punished and tortured him as cruelly as they could. He had to feel pain and he felt it as they rode his back for hours and did not care that his back was nearly breaking. He had to stop being nasty and change if he was to avoid such punishments in future.
Mistress Lana is never shy to try new things. That is what makes her feel alive. She hates routine and as a result, she is always trying to find the best way to do things. And that is how she got herself trying pony play training. She did not think it would be much fun but as she rode the back of this loser, she had more fun than she anticipated.
These mistresses are not easily offended but this guy managed to do it today. He felt great that he had done it because very few people get to do so. What he did not know was that he had stirred up their anger and he now had to be punished. The mistresses turned him into a human pony and he had to endure all the pain they directed his way.
This mistress felt that this guy was not doing things like they had agreed. And to send a message, the mistress turned the guy into a human pony and rode him all over the house. She did it for fun and enjoyed how hard it was for him to do it. He felt like he was going to collapse from what she did to him. He regretted not having done what they agreed.
This mistress and her friend wanted to come up with a human pony competition and so they told their friends who agreed. Now it was time to teach and train their human ponies to do tricks and to race fast. They also taught them about endurance. These mistresses went especially hard on the loser so as to make sure he won as they were the ones with the idea and they had to win.
Mistress Lana wanted to teach her friend mistress Joanne to ride a horse. But they did not have one yet so she had to teach her friend using a human one. So the mistresses turned their slave into a human pony and they enjoyed dominating him. At times they rode him together and he felt pain he had never felt before. His back was killing her but the mistresses did not care and they did not let him rest.