The next morning, Mary awoke from a very pleasant sleep. She couldn't remember the last time she had woken up feeling as refreshed as she did at that moment. She sat up in bed, stretching her arms wide as a long yawn escaped her throat.
That's when she felt a few unusual things.
First, it had taken her a little more effort to push herself into a sitting position, as if her upper body was heavier than she was used to. Furthermore, her breasts felt much more bouncy than usual. There was also the strange sensation of something soft brushing against her back. It felt like a curtain, or...hair?
She looked straight down and her eyes beheld two perfect breasts. They had swelled larger and were round and perky. Feeling them with her hands, they bounced a bit and sent a pleasurable feeling through her body.
Then she turned around, feeling whatever was behind her shift as she did so. Cascading down her backside was a waterfall of bright blond hair. Mary had never had it cut below her shoulder blades before, and now it had somehow grown by the foot overnight. She jumped out of bed, again feeling the jiggle of her new endowments. She shook her head and her hair rippled down her body. The wavy strands reached all the way to the bottom of her ass, which itself was a bit rounder and tight. She sped to the bathroom to take her new look in all at once.
She had a perfect hourglass figure, something beauty models would kill their agents to achieve. her large round breasts and buttocks were framed by a torrent of three-foot-long hair. Even her skin felt smoother, and her legs looked like they would never need shaving again.
Mary beamed at the sight of her unexpected overnight makeover. She was almost sorry it was a Sunday; She couldn't wait to show off her new body at work tomorrow.
Then her mind turned to the box of vials. If the gender vial could really do this to her in one day, then the others could change her into animals. This thought intrigued Mary even more than the prospect of instant beauty. She had always wondered what life was like for four-legged critters, and now was her chance to find out.