Will stepped off the moving sidewalk into the farm environment. His friend Jake has told him of his Animalistic experience and wanted to try it for himself. He entered the queue for a cow and waited about an hour before someone had come to get him.
The scientist led him into the changing bay where someone what just finished reverting from a cow. The scientist flipped a paper on his clipboard. “So here’s a general rundown of what you selected. You’ll change, Go and get milked, graze in a field and chew some cud, and let the kids come down and pet you, that’s about it.”

Will stripped down and nodded along with the scientists until they led him into a small platform. The scientists injected the serum into Will and began his change. Will’s tailbone unfused as a long black and white cow tail grew out above his asshole. His nipples began migrating south as they got bigger and longer. The area above Will’s crotch turned pink and puffed up. It turned into an udder which quickly filled with milk as Will’s legs began changing. His toes curled and turned black, thickening into hooves as his legs grew taller and thicker. Will’s spine forced him into all fours as his genitals began changing. A hole opened up right beneath his new large asshole. It slowly unfolded into a vagina as his penis was pulled into his body. Her stomach started swelling along with her body, filling to the size of a healthy dairy cow. Her udder swelled again, filling with more milk since her body could handle the weight.

Will felt her arms stop shaking from the new weight of her body as hands started hardening into hooves, the muscles in her arms changing and becoming her front legs. Fur sprouted all over her body, leaving her head as the last change. Her hair was replaced by fur as her ears became long and floppy. Her lips began swelling to meet her nose and become a snout. Will let out a moo, nothing more a than a cow. One of the farm area employees wrapped a lead around Will’s neck and took her down to the farm house.

“Well Will, let's get you milked.” Said the farmer. He pulled out a bucket and a stool and sat down. He reached over and began pulling on her teats. Will let out the occasional moo and the farmer emptied her. A couple minutes later, the farmer had a full bucket of milk and left Will alone. She stood there with the other cows, just waiting for the next event when she felt a fly around her butt. Will began swinging her tail and eventually whipped it at the fly, knocking it down. Will would smile if she could but she couldn’t with her snout. The back of Will's pen opened up and let her out into a large field. Will walked around with no real intention when she came across a patch of overgrown grass. Will felt one of her four stomachs rumble since she hadn't eaten before getting changed. She bent her head down and bit the grass and ripped it from the ground. She chewed it and kept chewing for a while before a bell was rung and Will followed the other cows back to the barn.

Soon after Will returned, she saw a farmer leading kids down the cow section in the farm house. The farmer stopped in front of Will’s pen. “Alright kids, be gentle as this is a living being.” He said. The kids put their hands on Will’s short fur and petted her, it felt nice and relaxing. One kid even came up and offered Will one of those animal cookies which she gladly accepted. The kids shortly left after that Will began to feel sleepy as her eyes closed.

Will woke up again when a farmer opened the gate to her pen. “Will, your times up but we need to milk you again before you go.” He said sitting down.
He grabbed Will’s teats and began pulling, milking out the white fluid out of her udder. Will enjoyed this last milking before the farmer put a lead on her, taking her back to the changing area.