In panic, Mary could barely let out a "I'm fine!" With trembling fingers she uncorked the vial yet again. I have to get out of here! She swallowed the vial, plugged it, swallowed it, plugged it and swallowed again. After what felt like ages, her body changed back to its human form, but she knew it was very temporary.
She bolted out of the bathroom, nearly slamming it into Jeremy's face. "I'm sorry, I've got to go!" she shouted as she ran into the main room. Jeremy chased after her, shouting.
She bumped into several people, spilling drinks all over her sweater. Not stopping to apologize, Mary made it to the door. She had barely turned the knob when Jeremy grabbed her shoulders.
"Please, don't go Mary," he coaxed. "I really wanted to see you tonight."
"Jeremy, I'm flattered, really," Mary said in a hurried tone that hardly sounded convincing, though it was true. "But now is definitely not the best time."
She opened the door as it hit her. The pain was more intense than ever before. She screamed in agony and fell to the floor. Jeremy tried to pull her out of the doorway, yelling for everyone to get back. The next sight they saw sent fear down each and every one of their spines.
Mary's body swelled, gaining a layer of tough fat. Her stomach swelled more than anything else, pushing up her sweater and revealing a rugby ball-sized cow's udder for all to see. Its six large teats were erect and seeped while milk. White and black fur covered her body from head to toe as a ropey tail shot out behind her. Her face elongated into a cow's muzzle with a wide pink nose. Her ears stretched and grew to the top of her head, where they were joined by two newly-formed gray horns. Mary's feet burst out of their shoes, hardening into black hooves. Her hands followed suit and her arms lengthened and thickened to support a proper four-legged stance. Finally, the hair on her head completely fell out as her mind emerged from a pain-induced limbo. She opened her eyes to see everyone in the room staring at her in horrified silence.
She lay there, almost naked and fully cow. A torn sweater was all that still clung to her body. The rest were in tatters underneath her.
Mary saw a look of shock and pity on Jeremy's face, and her bovine eyes let out a tear. She weakly maneuvered a hoof to point to her purse, hoping he would look inside and find the vials. Maybe...just maybe...they would find a way to bring her human form back for good. If not...she just hoped they took enough pity on her to kill her right then and there.