You laid down in the stall that night and tried to get some sleep. If you were going to be stuck as a horse then you might as well try and relax, maybe there was some way to reverse the process if you refused to do whatever the attendant asked of you. You just wanted to get some sleep and hope that maybe this would just wind up being a bad dream or something.
But what wasn't helping right now was the fact that you were surrounded by mares, and you could smell all of them. Maria was in the stall next to you, you could smell her heat but she was fast asleep, you envied her for that. She was probably used to this by now, but the same couldn't be said for the other two mares around you.
Across from you was a dappled grey mare that was almost as restless as you were. She couldn't sleep and was pacing a little nervously in her stall. You could remember seeing her name was Caroline, she whinnied a little, swishing her tail and you could make out the winking outer lips of her vagina.
On the opposite side from Maria was an Arabian mare named, Jessie you thought, that probably had it worse out of the three. She was rubbing her hindquarters against the wall of the stall, right next to your face which just made the situation worse, your new horse cock had slid out of its sheath and even in the dim light you could make out its massive length.
"Well, it looks like my new stud is eager to start early," the familiar voice of the attendant said and you looked up surprised to see her standing there. Only instead of the human she had seen before, she was an anthro horse that smiled at you broadly. "Don't be so surprised, this isn't your average zoo, its as much as my home as it is yours now. So, what to do with you now. I could let you mate with one of these lucky mares, or I could let you wait longer, that will make you more easily to deal with my handsome stud, what to do..."