She contemplated using the female vial again, taking the entire thing for good measure, but she remembered how it hadn't worked the first time back at her house. Maybe if she tried two full doses?
Pulling it out once again, Mary uncorked the vial and poured the entire liquid down her throat. Then she corked it, watched it refill itself, and drank it again. Her changes weren't as immediate as the last time, but after a few seconds her udder and tail finally started to recede.
However, Mary wasn't taking any chances this time. She waited in nervous anticipation for the udder to return. One minute passed. Two minutes passed. Mary began to believe the worst was really over. She was about to unlock the door and return to the party when it hit her again.
The cramping was even worse than before. Mary shouted in pain as her udder forced its way out yet again. As it swelled, Mary felt her tail returning as well, her spine cracking as it grew. Other parts of her body began to ache in tandem with the growing pressure in her chest.
By now Mary was sideways on the floor, curled over her udder. Her waist expanded along with it, straining her pants. Inside her shoes, her feet shifted and grew. White fur began to spread, starting in her waist and growing up to her breasts and down her legs. The udder's teats jutted out even more this time, almost six inches long, as the udder itself seemed more full than before. Mary was softly moaning as it completed its growth. Now her feet ached inside their shoes, her pants zipper was threatening to break, and she could no longer completely hide her sweater over the size of her udder.
When Mary was able to stand, she was afraid to look in the mirror. It took a bit of willpower to muster a look, and when she did, her fears were realized. The fur she had grown, thankfully, did not extend beyond what her clothes could cover. However two long, pointed ears stuck out prominently from her head. Her entire body also seemed just a little bit heftier. Her sweater certainly didn't look as baggy on her as it had before.
"Oh no," she began to sob at the futility of her situation. "What am I going to do now?"
A knocking on the door startled her, causing her to bang her udder painfully into the sink and remind her of its no longer pleasurable pressure. "Mary?" It was Jeremy's voice. "Are you all right in there?"