As you entered the stables you noticed how it was completely empty with the exception of a single horse at the black horse at the back.
You couldn't completely remember what they told you about the animals in this place so you decide to come closer to this animal.
As you come close to it you you notice the luxurious black coat that the animal possesses. You notice all the minute twitches and knickers it makes.
As the black stallion shakes it's mane your mind starts to fog out and receive strange apparitions.
You see yourself on all fours and when you look down you see hooves instead of your hands.
You can see yourself taking off your clothes and releasing the latch of the stallion's gate.
As the apparition ends you notice how you are at full mast and staining the front of your jeans.
Your mind feels foggy and somehow knows that what the stallion is asking you to do is right.
You start to shiver from anticipation as you slowly take off your clothes and throw them into a pile. When you reach your boxers you take them off due to being completely wet as your dick springs to attention.
You have never been this hard in your entire life and it's making you excited.
The black stallion neckers loudly and knocks against the gate as your mind starts to fog up again and receive visions.
In this one you open the latch as the vision quickly shifts to you looking at the ground on all fours with 2 black hooves on either side of his hands.You realized that you were In between the stallion's forelegs.
As the vision ended you fell 2 legs down on all fours realisig what the vision was entailing.
All of a sudden you couldn't restrain the burning feeling in your loins and went to the stallion's stall gate latch. In an impulse you slid the pivot up and backed away from the gate.
"Click"
You've never been this aroused in your entire life.
The stallion whines and slowly pushed the gate open advancing towards you.
As it slowly advanced towards you the rhythmic Clip Clop was making your cock twitch.
The stallion towered over you as you noticed it's cock slowly slide out of its sheet facing directly towards you.
First person:
I realised he was waiting for me, but I also knew he wouldn't wait forever as he whinied looking straight at my cock.
Memories flashed in my mind of me being on all fours with his forehooves on either side of me.
I realized what he wanted but could I?
My cock started throobbing at this point and my hormones started talking for me as I went down an all fours and crawled in the center of the corridor.
As the stallion advanced towards me I could feel his presence. As he stopped I saw his black hooves on either side of my hands as he started breathing hot air down my neck and hair making it wet.
I saw his hooves on either side of my torso
As he applied pressure locking me in place.
The stallions cock started tracing along my back and legs as he adjusted himself.
Then I felt his cock position between my balls and my member as I started to panic.
The stallion waited for a second probably to allow me to visualize what was about to happen to me.
The stallion started pushing slowly and then increasingly harder as I came all of my seed onto the barn floor, again and again, it wasn't ending
And then something insane started to happen. The stallion was advancing in me somewhere where there wasn't anywhere to advance.
He was going slowly but he was advancing into me in between my member and balls.
My cock went crazy at some point with and orgasm out of thin air as the stallion was pressing against my prostate
The constant pressure drained it all through my dick until there was only a small stream dripping down.
The stallion now was pushing increasingly hard as I could feel my belly bulging.
Unbeknownst to him his brand new orifice was splitting and creating something all to familiar to the stallion.
The lips of a mare.
The boy blacked out after a while as the stallion plowed the remains of his cock and balls into his abdomen to be reporposed to his new gender and species
When he woke up he could feel something was very wrong. When he touched his belly it was like a soda can was pressing outwards. When he ran his hands along it it twitched. Realising what that meant he ran his hands to his backside where his cock should have been to find nothing.
There was a smooth curve until the stallion's cock entering his pussy..
The stallion's head went down to his. He smelled his breath to check if he was breathing. He whined and then without any announcement he started drawing his dick out and then sliding it back inside all the way.
Each time his head would rock back and forth.
He noticed his hands slowly balling up as HIS fingers receded back into his hands bar 3 of them that formed his hooves and forelegs.
A similar process occoured to his legs as they lengthened into his pasterns and hooks. His tail sprouted soon after as it was quickly swirled out of the way by the stallion.
As he looked down as his torso was bulking up into a slick mare's body he looked down at his forehooves implanted on the ground next to the black stallion's hooves.
As his head finished elongating and his eyes were moved to the side of his head accompanied by his ears. He was finished and fully formed into a mare.
The stallion bit his newly formed mane as he quickened his pace and caused a rising sensation of pleasure in his belly which climaxed into an orgasm, however instead his muscles relaxing the pressure in jos loins climbed again and again on peaks like his mind couldn't handle.
As the stallion climaxed he spilled his steaming hot load onto the walls of his brand new uterus.As he climaxed for a whole minute his mind going black with pleasure.
As he came down from his orgasm the stallion dismounted making him feel empty as he pulled his entire dick out of his mare. He came along to his face as his eyes glowed and everything went white.
The boy suddenly found himself in the scientist's room with the brain headset being disconnected from his mind as alarm bells were going on on the monitors.
We couldn't pull you out without causing you to go brain dead, were sorry. You knew the risks.
Nothing happened, you see I m still a human!
As the boy checked himself all over he stuck his hands in his pants as it went a little deeper then usual trying to find his dick.
His mind went blank realizing that it wasn't there as he looked desperately at the scientists.
The reproductive organs are the first to go.You will turn into a full mare by the end of the week.
If there's is any consolation you're not the first male to subcumb to the stallion's charms. There are about 3 more in the barn outside.
As he opened the door he saw 3 other boys or what was once boys at various stages of the transformation process, the first with hooves, the second one even having a tail and torso. And the furthest along one had the body of a mare except the head which was still distinctly male.
There was also a girl in the process of changing as she had hooves.
What are you changing into? He asked
My name is Paula, but at this point, it's more appropriate if you called me Paul...
Why?
She lifted her skirt to reveal a sheathed dick attached to her belly.
You took down your own boxers revealing your Mare's cunt.
Her face lit up while saying.Do you want to be my partener?
Mark smiled and said: Sure thing girl. I'd like to get to know you better.
You're the girl now! she said
Their transformation slowly progressed through the week as they grew hooves their tails, manes and muzzles.
They completed their transformation 1 week later.
A Black mare and A Chestnut stallion enjoying each other's bodies.