He felt himself getting hairy.
Looking at his arms, he saw light tan fur quickly sprouting all over. "What?" he said, shocked. How was this happening? he wondered. Then, it hit him. "Emily!" She was using the Chronivac!
He had to get to her room now. He took a step and tripped on his pants landing on all fours on the carpet. His clothes seemed to be growing on him, but realized that he was actually shrinking. The fur had now spread over almost all of his skin, and now he was feeling other changes happening. His face seemed to be stretching out in front of him, as he felt something starting to grow out of the base of his spine. His hands before him appeared to be shrinking as his fingers became pointier and sharper. "Noooo," he howled as he realized what he was becoming. He could hear his voice changing with his growing ears, which had just flopped forward. He shrank and stretched for a few more seconds until the changes stopped. Where only a few seconds ago a young boy had stood there sat an adorable yellow Labrador Retriever puppy surrounded by a boy's clothes.
He wanted to say, "fuck." What came out was an adorable bark.
***
Emily heard the bark and smiled. She stepped out into the hallway to find her little brother had become an puppy.
"Oooh," she cooed. "Aren't you just adorable?"
He looked up at her fearfully, she appeared larger than ever. He whimpered.
"It's okay, Baby," she said as she gently pulled him out of his clothes. His tighty whities clung to a rear paw for a second, but then quickly dropped off of him, leaving him without any trace of his former human identity. "Don't be scared. I just thought you might have fun for little while as a puppy."
He looked at her past his long muzzle and then down at the floor far below him, he felt so powerless. He barked, and she kissed his forehead. "You're such a cutie, I could eat you up." She walked him to their parents' room and set him down in front of the mirror in there. He trotted over to it on his four big paws, amazed at how normal traveling on all fours felt. When he got to the mirror, he stood up on his hind legs and rested his paws against the glass. A furry faced puppy stared back at him. He had to agree with Emily. He was one cute puppy. His tail wagged unconsciously.
Emily smiled. "You have the run of the house, Jeffy. Just try to stay out of trouble." She patted his head affectionately and then turned to leave. He barked, but she didn't stop.
She walked to her room and shut the door. He galloped after her, skirting around his pile of boy clothes, to her door, and found himself totally helpless to get to her now. Even if he had been large enough to reach the door knob, he had no fingers to grip it. He scratched at the door with his claws and yipped futilely, but she did not respond. "Damn," he thought, as he sat down on his adorable furry ass to think. "What am I going to do now?"
***
Inside, Emily was back on her computer. With Jeff safely occupied, Emily felt safe to really start experimenting with the Chronivac. She had her own stats open again, and was clicking through different options.
"Hmmm," she said. "That's interesting."
She found that she could...