As Tyler took the last of the injections the greatest pain happened.
He watched in the mirrors that were placed around so that he could see his transformation and the strangest thing happened. The mule that he had been transforming into suddenly took a drastic change.
He was human again.
What had this maniac done to him? Was this all just for his sick pleasure to see Tyler in pain?
But when he returned he seemed to be as surprised as Tyler.
Well now it looks like you are going to be one of my special subjects.
He injected Tyler once more and he went to sleep.
When Tyler woke he was in a barn in a stall with hundreds of stallions. The ones closest to him were bucking and so animated that it frightened Tyler.
A big burly man came and unlocked Tyler's stall and put a collar on him.
Time to breed. Was all he said.
As Tyler looked at this man he thought he had to escape. But he was naked and collared. And even though this man must have been almost 500 pounds of muscle and fat and 6' Tyler tried to figure out how to get away.
He started to pull at the chain attached to the collar and was quickly corrected.
He was brought into a stall where there was a strange bench and a waiting stallion.
Take care of him. The burly man said pushing Tyler's head down near the horses cock. Tyler smelled the spunk coming from the horse and was repulsed at first and then he quickly took the cock in his mouth and started sucking. It took just moments and he was drinking the cum of the stallion.
Do I have to drink their cum all the time he asked the man?
That was just to start. Get you use to the smell.
As he finished he jerked at the chain and strapped him down to the table face down. Waiting for the man to return he had at least taken the stallion away and when he returned with another.
It mounted Tyler and his formerly virgin ass was quickly filled to the hilt with horse cock.
One after another they filled Tyler's ass with their cum and he wanted to jack off but was restrained. The cum was drawing his mind away and he was enjoying every new load. They shot with such force and were replaced so quickly that not a drop was allowed to empty from his ass.
As the last one was released from his ass a dildo was shoved up his ass and attached with what seemed like a reverse jock strap. He rose from the table and noticed that his belly was filled with horse cum. It was so solid that it looked like he had swallowed a beach ball. The burly man took a tape measure and measured around. 60 inches.
Hum the man said to himself. That is a good start.
Good start Tyler screamed.
When we get into production your belly will be more than three times that size.
Tyler couldn't believe what he was hearing. He was going to explode.
As if hearing Tyler's concerns the burly man said not to worry he wouldn't explode the injections would keep that from happening.
This was truly a horror story for Tyler.
As he waddled back to his stall cradling his distended belly as best he could he sat down on the floor and the cum he was carrying made him so horny that he tried his hardest to reach his cock and jack off. It wasn't easy.
He jacked off several times and then went to sleep.
When he awoke there was a trough of slop that somehow smelled wonderful. He ate from the trough and went back to sleep.
The big burly man was poking at his belly and said wake up. We need to clean you up.
He too Tyler to an almost sterile room and took out the dildo and started to manipulate Tyler's painful belly. The cum started to release and emptied down a drain in the middle of the floor. He shoved a hose up his ass and soon all the cum was out of his belly that hung like a deflated balloon.
Time for round two.
This time his belly grew even more and he feared the burly man's words that his belly would be more than 3 times the 60 inch starter belly. He did the calculation in his head and realized it would be over 180 inches. How is that even possible?