Goddess Barbie knew that this guy needed to be humiliated and she did not hesitate to dominate him. The mistress had to make sure that he was in pain and that he was humiliated at the same time so she used him as a human pony. And she did it while she was wearing a sexy bikini so he was also turned on but denied as he was not in her league.
Goddess Barbie was bored in the house and since it was snowing hard outside, she did not want to step out of the house unless she really had to. So she came up with a way to dominate her slave and have fun at his expense and she did it with her pony play fetish. She turned him into a human pony and she rode him all over the house for fun.
Mistress Celeste knows how to make her boyfriend do whatever it is she wants. Today she wanted him to be her human pony so she used her sexiness and pretended it was foreplay that she wanted. He knew she was wild and naughty so he agreed and she rode him all over the house but she did it while naked so that he believed it since she knew it was not really a foreplay thing.
Princess Violetta and her friend empress Joschi had an agreement with this guy. He was to let them do what they wanted to him and he would get what he wanted which was a threesome with them. So the mistresses rode his back as a human pony and they did it while they were all naked. It was fun for all of them despite him feeling some pain from carrying them. It ended up being foreplay for them and they had a great time together.
Princess Diavolo used her whip to enforce the discipline of her slave because she could tell that it was waning. She did not want him to become the sort of slave who did not heed her calls and who did not follow her instructions. They were not equals and she did not want him to behave as such. So she got on his back and she rode him as a human pony while whipping him.
Mistress Isabelle had beef with this couple and she had to show them that she was not their regular girl. She wanted them to understand that she would not hesitate to torture them and to punish them if they messed with her. So she turned them into her human ponies and she rode them all over her back yard until she got tired of it and they nearly collapsed from her weight.
Mistress Gloria felt that her slave was too slow and in an effort to punish him, she chose to use him as her human pony. She rode him while he was naked and she did not care about anything he wanted. The mistress knew it was painful and that is why she did it repeatedly so that it would be a lesson for him and one that he would not forget.
Princess Sue wanted to try something new but her boyfriend was uptight and he was not very receptive to new ideas. She was not going to let him continue being like that so she waited until he was horny and she gave that as a precondition to them having sex. After a few days of refusing, he finally accepted and she rode him as a human pony. It was painful and a little humiliating but it was also a slight turn on for him.
Mistress Ronja and her friend lady Lucy wanted this guy to know that they were not going to allow any failure. So before they sent him out for the top secret mission they had for him, he had to be humiliated and tortured a little bit so that the mistresses would be sure that he would not mess up. He was turned into a human pony and humiliated before they let him go.
Princess Sue was not satisfied with the way her boyfriend handled issues. She had expressed her views numerous times but nothing seemed to be changing. So she had to find a way to do it differently. And that is how the mistress found herself in need of a better way to express her dissatisfaction. She settled on using him as her human pony and he learned from the pain and humiliation he felt.