If he had been asked this before, Mark would've turned it down, but this body felt way too amazing to him. He loved the feeling of mating with Sophie and his mind was going to the idea of mounting more mares. He was more excited than anything, his horse instincts were driving him to want to take Georgina like the mare she would soon be.
He eagerly nodded his head and the attendant smiled a little as she patted his side. "Excellent, I thought you would agree to this kind of thing, now let's get you out of this so you can go show Georgina the pleasures of being a mare."
It only took a few minutes for the two of them to be freed from the trap. As Mark's cock slid out of Sophie's vagina the combined juices of their sex dripped out of her winking slit. He no longer cared that his humanity was gone, he loved being a stallion stud, all he could think of was mating with more mares.
The two horses were lead back to the barn. Sophie was placed back in her stall next to Princess, who was currently in another room, before the attendant lead Mark into another room. Georgina was bound and moaning as she felt a vibrator penetrating her vagina which had started to turn into a mare's vagina.
The attendant pulled out the vibrator as a scent hit Mark's nostrils and his cock slid out of its sheath again as he let out a whinny.
"Well, someone's happy to see you, Georgina," the attendant said with a smile.
"Why are you doing this to us?" Georgina asked with a moan. "We never did anything to you!"
"You're human, that's enough, such a useless species, but we can change that," the woman said and nodded to Mark. "Soon you'll be a horse just like Mark here, and you'll love it just as much as he does."
Georgina was about to say something, but let out a moan when she felt Mark's muzzle pressed up against her as he took in a deep sniff.