She awoke with a painful stomach. To her foggy eyes it looked large and full, but her insides told her different. She heard it gurgle as she rolled off the bed and onto the floor. Making her way to the kitchen on hands and hooves, she heard her bell clatter noisily and began to wake up fully.
What was she doing on the floor? She was supposed to be walking on two legs, not four. Once she was a complete human, and living a content life. This life was rather nice, too, of course, but suddenly the absurdity of lazily eating and sleeping all day became clear. She had to stop this descent.
She struggled to pull her heavy body up to the table where she had left the vial box days before. She pulled it down to the floor with her as she landed with a dull flop. Her thick fingers plucked out the human vial and she wrapped her thick lips around the entire thing. She guzzled it down completely, then sprawled on the floor to wait for its effects.
It took some time, as her initial change did, but it happened. In minutes, her fur receded, her horns and tail shrank into nothing, and her hands and feet returned to normal. Her udder flattened and completely disappeared and her breasts shrank back to normal.
Unfortunately, all of the fat that her body had accumulated over the days remained, as did her strange jewelry. She attempted to stand back up, but she still couldn't make herself balance properly on two legs.
"Whooooy is this haaaappening?" she mooed. Mary was surprised by the cow-like moo that remained in her voice. Shouldn't that have disappeared with the rest of her features? She looked around her body frantically for signs of lingering cowishness, but found none. She heard her bell clattering as she did so, and finally realized that her accessories might be the true cause of her behavior. With nimble human fingers, she was easily able to strip herself of the rings, bracelets and bell collar that had been sold to her.
She tried once more to speak. "Testing. Hello? Helloooo?" She purposefully drawled the second "hello" to confirm it. "Yes! I'm back to normal!" she elated. "Well...sort of." She regarded her large body with disdain, but thought there must be some way to shred those pounds without going to the gym.