"This can't be real." Chery thought. "There's no way this can work." A few seconds went by, and she felt the first edge of disappointment.
Then she felt a prickling on her skin, and a few coarse brown and black hairs growing in. "It's working!" she thought "I'm going to be a dog!" She hurriedly began removing her clothes so as not to rip them during transformation. Buster gazed on, curiously.
The first few tenative hairs were followed by a host, as most of Chery's body was now covered with them. Next she felt a peculiar tugging at her face. She glanced in a mirror, and saw that her nose and mouth were being drawn forward into a muzzle. Her nose turned black and wet, and there was a brief spasm of pain as her teeth reshaped themselves while her jaw realigned, her human weakness replaced with a dog's powerful, crushing jaw muscles.
Like many American women, Chery had never been happy with her weight. She wasn't fat, but she always felt like she carried too many pounds. It was with particular pleasure that she felt herself shrink as fat melted away to reveal a core of lean, canine muscle. At the same time her breasts deflated, divided into multiple pairs, and migrated down her body.
The changes were coming faster and faster, so fast that Chery lost the ability to trace them individually. Her hands and feet shrunk into a dog's paws, while her nails grew into claws. A tail grew out of her backside. She pitched forward, onto all fours, as her arms and legs shortened and thinned into a dog's fore and back legs. Her buttocks shrank into a dog's hindquarters.
At the same time, her sensory apparatus was reprogrammed. She lost the ability to see colors, but this was more than compensated for by the rich world of smells and sounds that were now open to her.
Chery was a dog now. "I'm beautiful." She thought. "I'm beautiful." She reveled in the compact power of her new form. For the first time in many years she was happy with what and who she was.
Buster was also happy.