Carter strained painfully as he heaved his growing body onto two legs. His ass and stomach had gained considerably more muscle and fat, while his arms and legs had lengthened and readjusted to the point that they now looked nearly fully bovine. Further developments included the growth of his neck, muzzle and tail, as well as the spreading of tough black and white hide over his body.
Carter wobbled for a few moments before ungracefully slumping forwards to rest his new front legs over the stall door. He let out a pleading bellow at the doctor as he continued to watch in amusement. Seeing his former captor rapidly being reduced to a common dairy cow was amazing to watch. This bastard deserved everything he was getting and more.
“I bet you wish I had some more of my antidote with me, don’t you?” Jenkins reached out to stroke Carter’s muzzle as it flattened and stretched out. The former farm manager gave a pitiful moo, desperately hoping that the doctor would have mercy on him.
Jenkins gave a dramatic pause before dashing Carter’s hopes. “Not to worry, I’m sure you’ll enjoy being a cow once you get used to it. An unlimited supply of food, being milked twice a day, being fucked by handsome bulls…”
Right on cue the large black bull in the stall with Carter snorted, making the changing man tremble in dread.
Then, as if the serum had been listening to the doctor’s words, the changes started to reach Carter’s most sensitive areas. Four pink rubbery nubs quickly poked out on the man’s lower torso, while his two human nipples faded away. These growths quickly descended towards the floor as Carter’s new udder began to form.
Carter’s face scrunched up with humiliation and discomfort as the pink fleshy milk sacks seemed to inflate like balloons. However, things got even worse when the serum triggered milk production. The changing man groaned in disgust as his udder started to fill with milk, causing it to feel large and heavy as it dangled between his legs. It seemed the bovine variant of Jenkins’ serum turned its subjects into perfect milkers.
Doctor Jenkins watched eagerly as Carter’s udder continued to fill to a size that was on the limits of what was naturally possible. When it was all over, Carter’s new teats looked ready to burst. The pink skin was stretched taut, with large veins clearly visible on the surface. The four nipples were now long and fat; almost sausage-like as they stood erect on the fleshy growths. The whole thing swung heavily whenever Carter shifted slightly, making him groan out in frustration as the need to be milked steadily crept into his mind.
However, there was another important change that the serum had yet to instigate. Afterall, the formula was designed to make effective breeders as well as milkers...
With Carter still reeling from the last change, he was caught off guard when he felt an intense burning sensation in his crotch. Carter shut his eyes, hoping that the next change wouldn’t happen if he didn’t think about it. Sadly, this was merely wishful thinking.
Carter’s whole body trembled as he came suddenly. However this climax was much longer and far less pleasurable than normal. Instead his balls were merely emptying themselves in preparation for their imminent repurposing.
Sure enough, Carter’s limp dick and shriveled balls were pulled up closer to his tail. He winced as his scrotum reshaped itself, forming a pink fleshy mound. This mound soon developed a vertical slit running down the centre, surrounded by the tight, firm pussy lips of a virgin cow.
The changes to Carter’s new sexual organ rounded off as his old penis slipped inside the new opening to form a highly sensitive clitoris, which was soon nestled snugly inside her warm wet cunt. Following this, a new channel tunneled inside Carter’s bovine body, connecting his newly-minted sex to his developing womb and rounding off the last of the changes.
Now, where the farm manager once stood, was a common dairy cow. There was nothing human, or even male left. Mr Carter was now a ‘SHE!’
Dr Jenkins smiled as he studied the shame and humiliation on the cow’s face. He stroked Carter’s new snout and played with her ears, making her moo in dismay. “All right girl, I know you must be frustrated, what with that hefty udder and those female hormones racing through your system!”
Carter bowed her head slightly and mood softly, still pleading with Dr Jenkins to turn her back.
Jenkins smiled as he looked behind the cow. “Don’t worry girl, soon those problems will all go away...”
Carter didn’t have long to consider what he meant before she let out a sudden gasp, as she felt a long slurping lick right over her exposed vagina. She mood out in protest as the bull gave a second, third and fourth lick to his soon-to-be-mate. Carter was stunned as she felt her sensitive cunt being teased for the first time, and the feeling deep inside her of what she knew was her first bovine heat blossoming.
Meanwhile, Dr Jenkins just stood back and watched. Looking forward to seeing Carter accept her new lot in life…