Jeff kept being worried all along the ride from his house to Mr. Hanson's farm.
He really did not felt like chain-impregnating mares, but there was no guarantee that what he typed on his laptap would eventually work. As far as he knew, there was no choice but to wait and see for the changes.
The mini-van finally arrived, and he couldn't help himself but getting more and more aroused : the somewhat horsey instincts were kicking in as his junk got even more erect.
Mr Hanson, upon seeing Jeff and his cock, helped him out by leading him to the stables, while her mother would stand by and wait. It wasn't the best thing to stay outside the stables, but she wanted to give Jeff some privacy, even though he was nothing more but a horse to her.
In the stables, Jeff heard several neighings scattered a bit everywhere. Most of them were of a female trend, which decided him to strip himself out of his clothes and stroll around the pavement. He did not know why exactly did he do that, but he felt like he wouldn't need them now.
Mr Hanson did not say anything, and rather, led Jeff to a first box, where a Palomino mare was idling here.
" Alright, boy " the farmer said. " You do what you gotta do. I'll be back in several minutes to check on you and switch partners. "
Jeff began to be horrified. As to add to this already intensively humiliation moment, the mare was showing her rump, which had the effect of driving him even more aroused.
To top it all, it was at this precise moment that the Chronivac validated the soon unfortunate changes typed by Jeff.
His mindset completely evolved, and he found himself going to her, his cock of a stud rocking back and forth.
As he now was right behind her, fur crept out of his body, brown as much as of his hair in efforts to match it.
The call for big pussies was the strongest of all factors. Jeff plunged into the mare and began his session.
Of course, she went along and whinied in pleasure. But it only was the preliminaries.
Grabbing that fine piece of an huge ass, Jeff kept going in and out, blissful of his state.
But soon, those fingers receeded slowly, getting darker and solidifying up until the point where they were nothing but a travesty of his forder appendages, and rather some fine hooves.
The same happened to his feet : he found himself stappingoon enough the floor with a clear and distinctive sound in pleasure.
He didn't mind, not caring as he gained somewhat of an equilibrium, as he got himself taller and heavier. His body was now the right size, which allowed him to fit his cock, and much better impact in this horsey vagina.
Since the size was fixed, it was time for his trunk and limbs : his arms bent and gained additional muscles, raising down his shoulders whom metled inside his upper body already barrelling into the trunk of a stallion, while the legs grew heavier to support all of this mass, and while his ass got massive and wide, sporting a flowing horse tail.
From hooved feet to the base of the neck, there was nothing but a Icelandic horse who accelerated his rate of insemination, to the mare's greatest pleasure.
Jeff's moans went much raspier, sounding more and more like neighings akin to a horse, as his neck elongated and elevated a now ridicule-sized head, whose hair flocked down as a massive mane.
The adjustments were getting to an end. Soon, the ears leaned topside and grew, his face pushed massively into a fine equine muzzle, his eyes moved to his sides, and a brand new set of teeth replaced both his jawbone's contents and his regime to a herbivorian kind.
With that, Jeff climaxed, sending a lustful amount of semen in the mare's vagina, concluding perfectly.
With that, he regained his senses, and felt that something was wrong.
He soon got to the bottom of the problem, and became frightened by what happened.
" No... " he mentally cried, " I can't be a horse ! It's impossible ! "
Jeff realized what that meant : upon typing, he had probably set the chronivac to change him in order to accordingly fit his cock, making him a fine stud.
While he wondered, struck in terror, if there was a chance of becoming human again, Mr. Hanson entered the box, carrying a bucket. He filled it's content with Jeff's semen, who had not much of a choice by now, and looked in awe at the sight of the newly-changed horse.
" I forgot how much of a wonderful stud you looked. Those fillies are gonna be exceptional... "
Jeff did not know if he had to beam with joy or downright shocked at the prospects of being a father.
The farmer got up soon enough.
" Well " he added, " now's the time to change partners, big fella. "