As Mark was on his way back to the Stable, Georgina found herself naked and bound in a back room of the Stables. She could hear the sounds of Princess getting mated with on the outside, her neighs and whinnies of protest had turned into those of pleasure. Whatever was going on out there, Georgina knew that was without a doubt her final fate.
She had to do something, anything to occupy her mind right now. She didn't want to imagine what her life would be like if she became a horse, the prospect of losing her humanity was simultaneously terrifying and arousing to her because of whatever the hell they were doing to her.
She could imagine a stallion mounting her and penetrating her warm leathery mare... no, she couldn't think like that. She had to focus on getting out of here. She closed her eyes and tried to think, hardly noticing as her mind started to drift away, to another time and place entirely.
"Such a shame, your fellow knight ran off without you," a woman that looked like the stable woman only dressed in what could only be compared to evil sorceress getup said. "You're all alone in here, and soon you'll both be horses in my beautiful herd."
"You're not going to get away with this..." Georgina said as she struggled against her bonds. "We didn't do anything against you, why are you doing this to us?"
"Don't you get it?" The woman said as she patted Georgina's cheek a little. "You're all useless as humans, so we're going to actually give you a purpose. Humans are nothing more than animals, and all we're going to do is show you your true selves. Enjoy the last moments of humanity while they last, I'll be back soon."
Georgina groaned a little as she tried to struggle against her bonds, she wasn't going to let that witch win without a fight. She was being kept in a stable with other horses, no doubt more innocent victims of the same witch who wanted nothing more than to turn them all into common animals.
To her surprise, however, the bonds gave way and came loose. She blinked in surprise and used her now free hands to untie herself, she was still naked but she didn't have time to worry about that. She went into the stables themselves and looked around, most of the stalls were locked but she found one that was still unlocked. It housed a black stallion with a white mane that looked like he was as restless as she felt.
"Shhh, it's going to be okay, we're both getting out of here and maybe I can find someone to reverse this accursed spell," she said as she placed a hand on the stallion's muzzle before walking him out and climbing up on his back. "Come on, let's get out of here and back home!"
She and the stallion galloped out of the stable and into the forest that surrounded it. She felt like she was finally home free, but with each step of the mighty stallion she felt him rubbing against her bare pussy and let out a moan. The pleasure of the mighty stallion between her legs was getting to be too much for her to bear, and it was already affecting her body.
Black fur started to coat her body starting from her pussy and spreading out as it did. Her feet hardened, molded together, and formed hooves but she didn't care. She moaned in pleasure as she rubbed her increasingly wet pussy against the mighty stallion's back, the pleasure and arousal getting to be too much for her.
"Ohhh... yesss... faster... harder..." she said as the fur reached her breasts and a tail sprouted out of her butt. She wasn't even sure if she was calling out to the stallion to run or to fuck her as hard as he could. She no longer cared as her transformation continued, her face now covered with black fur as it pushed out into a muzzle, leaving an anthro mare, but not for long. The heat grew in her loins, her transformation was almost complete and she needed a male inside her now. "Whoa!"
The stallion instinctively came to a stop as Georgina jumped off his back, still unaware of her transformation. She saw a rock and leaned on it, pushing her new tail to the side as her now fully horse pussy winked at the stallion invitingly. She didn't care that he was an animal, all that she cared was that he had a cock and he was going to alleviate the heat in her loins.
"Fuck me you huge stud, make me your mare!" She said with a loud whinny as she invited him inside her. The stallion happily obliged and positioned himself above her on the rock and pressed his cock against her pussy for a moment.
In a brief moment of clarity, Georgina realized that something was wrong. Why was she about to let this stallion mate with her? She was human, wasn't she? She raised a hand to see it hardening into a hoof and was about to protest when suddenly the black and white stallion thrust into her and she let out a loud neigh of pleasure.
Georgina was far from a virgin, but this was like no sex she had ever experienced before as the stallion plowed into her like a freight train. Her human mind's protests were quickly swallowed up by the absolute pleasure of being fucked by the stud and her transformation began again in earnest. Her arms grew out until they were as long as her now hind legs and her fingers became full hooves, she let out a last human cry of pleasure as she whinnied loudly.
Her chest barreled out as her breasts migrated to between her hind legs to form her new teats. She no longer cared as her neck and butt became that of a mare with each thrust intoo her. She was loving it, shee wanted nothing more than to be a mare, to bear this stallion's foals as he penetrated her faster and deeper, his medial ring rubbing against her insides.
She felt his balls slap against her hindquarters, her body now that ofa beautiful black mare as he thrusted faster into her. Her human mind's protests had been silenced as it gave into the pleasure of the animalistic mating, no longer caring about what was happening to her.
Finally, she and her mate let out a loud neigh as he cummed deep inside her and her vaginal walls clamped down to draw out as much seed as she could. The illusion is broken, she was back in the Stable, in reality, still bound as Mark slowly dismounted from her, their mixed juices pouring out of her pussy.
"I told you the illusions were a good idea," a male attendant said with a chuckle as they undid Georgina's bonds. The black mare barely remembered being human anymore as they prepared to lead her into her new stall. "We've got two new horses with them, we're going to meet the quota in no time at this rate."
"Yes, I suppose you're right, I'll make sure the higher-ups know what you did, as long as it works," the female attendant said as she leads the stallion into his stall. "Soon we'll have enough to beat out the rest of the Zoo, and everything will fall into place."