As Mary slept through the night, she could not imagine the changes taking place to her beautiful human body. Slowly, soft fur of black and white began to grow from her once pale human skin. It crept slowly up her body, starting from the bottoms of her feet and making its way slowly up her legs to her torso, arms and face. As it did, her slim, trim body began to put on weight and muscle, ballooning out naturally to a graceful but vuluptous body very unlike its former size. Mary shifted, squirming as she flexed her fingers and toes, not realizing that they were merging. Long claws grew from each digit, as her pinkies slid away, and her fingers and thumbs became more pudgy. Pads formed on her palms and the bottoms of her feet as her breasts swelled lightly and a stub of tail grew out from the small of her behind.
Through all this, Mary remained perfectly unaware, smiling in her sleep even as her insides gurgled and shifted and changed. Her clothes had become uncomfortably restrictive against her now more chubby, bearlike body. She was still humanoid, with a vaguely human face but that swiftly changed. Her ears rounded and darkened, moving atop her head as her face pushed out into a dark muzzle tipped by a moist nose. In her jaws, her teeth became sharper and senses more keen. Her tongue running over new fangs as her hands caressed her new form. Mary was only dimly aware now, thinking herself only in a dream. Then, slowly her eyes opened, now soft golden instead of brown. Rubbing her eyes, and still bleary, she shifted her paws out of bed to go to the bathroom, turning on the light she suddenly saw her image in the mirror...