Deciding that if she was going to try a change it might as well be a big one, Cally took out the vial and
waited for it to turn green. Cally had always wanted to go to Australia. She loved everything she'd seen about
the place, the scenery, the wildlife, especially the kangaroos. Uncapping the vial, Cally drank it in one gulp
and said "Kangaroo". She considered taking her clothes off as she waited, guessing that is the vial worked, it
would probably be better to be naked. "If the vial works?" She thought. "What am I thinking? There's no way
this is actually going to..." Cally's thoughts were cut off by a pain in her abdomen that quickly began
radiating outward, traveling like fire down her legs. Cally heard a cracking sound as if the bones in her feet
were breaking and felt the muscles and tendons shifting painfully. The pain only increased as Cally felt her
shoes becoming unbearably tight. With a tearing sound her feet burst free of her shoes, stretching and warping
into long paws. Fur began too appear on her feet and spread up her legs.
As the fur spread, her muscles began cramping, and Cally was forced into a crouching posture with her
weight on the balls of her feet. When the fur reached her knees, Cally watched as her calves began distorting,
the muscles bunching and tightening. Nothing however, could have prepared her for what happened as the fur
reached her hips. As soon as it touched her spine, the growth of the fur sped up dramatically. It ran up her
spine and onto her face as Cally felt her ears pull back onto the top of her head and her face push out into a
muzzle. Her neck lengthened with a series of cracks as new vertebrae appeared and her spine stretched. Then
the sensation of stretching ran down her spine to her tail bone which began growing at an alarming rate.
Within seconds, Cally felt her tail burst through the seat of her pants on its way to a final length of over
4'.
Then with a wrenching sounds her hips widened to gigantic proportions, giving her the lower body shape of a kangaroo. At the same time the muscles on her thighs, hips and ass seemed to explode with growth, thickening and bulging into a powerful musculature built for leaping. The fur now covered most of her torso, and a pouch had formed on her stomach. Her breasts actually expanded several cups, threatening to split her shirt at the seams. Finally, the fir moved down her arms as her hands became slightly paw-like. Then it was over. Cally surveyed her ruined clothes and beastly form with a mixture of shock and delight.