Mistress Gaia wanted to have fun in the house without having to go anywhere. So she turned her slave into her human pony. The slave did not know what she was planning but when the mistress took her to her fetish room and she turned her into a human pony, the slave knew that it would not end good. Mistress Gaia inserted a butt plug which had a pony train which she wagged for the slave as she rode her.
Mistress Gaia was pissed at her boyfriend and she had gotten to a point she did not even want to be with him anymore. She decided to dump him and she did not even think twice about it. She sat down and came up with a plan to dominate him then dump him. So she made him a human pony and humiliated him by riding him. As if that was not enough, she humiliated him in front of a guy who would be his replacement.
Goddess Jeanne does not like rude people and this guy was one. She felt that she had to do something about it and so she chose to ride him like a human pony. The mistress had a whip ready in case he did not do as she ordered. He was humiliated and in a lot of pain but there was nothing he could do about it. He had to obey.
Princess Serena wanted to show this guy that she could humiliate him without beating him and she used him as a human pony just to show him what she was talking about. She humiliated him a great deal and he cried as she did her thing and he wished that he had not dared her to do her worst. He was now turned into a human horse and he had to endure it all.