Mr. Morrison smiled, thinking what good fortune it was that this fine horse had come to his stud farm.
"Tomorrow we will see how well you put that equipment of yours to work on my mares," he told the horse as he left for the night.
Jared stood there alone in his stall and pondered the situation. He was glad he could still think - at least he still had his mind, but his mind was awash with bestial instincts. Simply being a horse was enough of a shock, but being a young boy, Jared had not yet experienced true sexual desire. Yet standing there he could smell an oddly intoxicating scent in the air - the scent of mares. His large cock grew and he slowly slapped it against his belly without him even thinking as he drifted off to sleep.
The next morning Mr. Morrison came to Jared's stall to find him clearly in a state of sexual anticipation.
"Whoa, sorry there pal. I guess it was mean of me to put you in a stall so close to the mares. Don't worry, it's time for you to get some exercise" he said to Jared, who was quickly awoken from his dreaming.
Jared was still unsure exactly what was in store for him, but he knew this - he had to somehow let Mr. Morrison know that he wasn't a horse, but was a boy. The man led him with a rope down to a much larger stall which had several horses within milling about - from their scent Jared knew they were mares.
The instincts within his mind wanted so much to be with those mares, but Jared pulled back, rearing up onto his hind legs and letting out a loud whinney.
Mr. Morrison tried to calm him down, confused why he pulled away from the mares, "What's wrong fellah? Don't you want to have some fun? You must be new at this I'm guessing... here let me help you".
He managed to pull Jared within the pen and left him in the corner, while he went over to one of the mares, who was clearly noticing the stud's presence.
Jared started trying to write the word 'help' into the dirt on the floor with one of his hooves. He had just manged to finish the word despite the sexual desires in his head when Mr. Morrison came over with a mare, presenting her to him.
The mare turned her rump towards Jared and started to urinate in front of him, sending an enormous amount of her pungent scent into Jared's nostrils. His mind was thrown back - never had Jared experienced this kind of feeling - pure lust. He sniffed eagerly at the puddle on the floor, and then raised his head to her rear. She was dripping in anticipation, her lips opening and closing.
Jared's cock throbbed for her as he quickly let go of any inhibitions and reared up, landing with a dull thud on her back. He probed hastily at her rear, trying to find that sweet hole. Mr. Morrison watched from behind the stall wall, letting him pleasure her without his help. Jared finally hit something very warm and moist, and he quickly thrust forward, taking steps and bucking his hips forward to allow his entire member to fill her void.
The feeling of her tight vagina tightly wrapping around his huge cock as the scent of her and the other mares hammered at his nose pushed the human part of Jared back into the recesses of his mind with ease. For those delicate brief moments, there were only two horses in the middle of heavy fucking. Finally he came, shooting huge thick loads of cum into the mare, so much it spurted out around his cock onto the floor in splotches. And as he withdrew his satisfied member more cum dripped from her used mound.
As Jared stood there, his mind slowly came back to him. He was still in a complete daze from his first mating, human or otherwise.
Mr. Morrison then noticed the word 'help' on the ground, although it had been messed by the hooves of the horses, not to mention their fluids, but he could certainly read it.
"What the hell is this?" He wondered aloud.
Jared then grew excited as he saw Mr. Morrison reading his message, rearing up again and pawing at the ground. Mr. Morrison took this the wrong way, "Ah, you enjoyed that didn't you. Well there's much more where that came from. I think I'll leave you in here with these gals for a few days. I'm sure you'll have them all pregnant within an hour, but doesn't hurt to be sure hehe."
Jared panicked, knowing somehow that any more time in this room with the mares and he would no longer have his mind - already he could feel the sexual urge again as the other mares attempted to get his attention. His drooping cock began to fill with blood again, coming erect, when Jared made a decision...