The girl smiled at Belinda, unaware that the anthro mouse in front of her was not just another human in a costume. She shuffled a few steps towards Belinda and looked at the expired cheese crackers in her mouse-paw. Belinda chuckled to herself, eager to share the scrumptious snacks with a friend.
"Of course you can have some!" Belinda squeaked as she held out a paw full of crackers to the little human girl. The girl grabbed a few crackers from Belinda and grinned as she put one in her mouth.
Almost instantly, the crackers took an effect on the girl. Her incisors grew longer slowly as she chewed. Her face began to stretch out painlessly the more she ate the crackers. Her nose melded with her upper jaw, turning a light pink color. Whiskers grew out one at a time from the sides of her growing mouse-muzzle.
Belinda watched curiously, chewing on a few of the crackers herself as the five-year-old human shifted before her eyes. She wasn't sure why, but she found the girl to be more likable as the changes progressed; the whole human thing wasn't really working out for her...
The girl made short, mouse-like chittering noises as she continued to process the crackers in her mouth. Her face began to sprout short grey hairs and her ears grew, not unlike the transformation Belinda's ears underwent. The girl's new mouse ears moved a little bit up her head, developing a light fuzz on the back. Her eyes darkened to a shiny black and the rest of her skin turned the same color as her pink muzzle.
At this point, it would have been difficult to tell if the girl's head was actually that of a common mouse in a short brown wig. The changes continued down her body; her crumb-covered hands crackled and popped as they morphed into unmistakable, five-fingered mouse paws. Her polished finger-nails vibrated a bit, turning into sharp claws.
The changes neared their end as her feet also changed into mouse paws and her whole body was covered in sleek, grey fur. She swallowed the bits of saliva-covered cracker.
The former human girl looked up at Belinda, who sported a mousy grin and a look of approval at the new anthro mouse before her. The young mouse looked up at Belinda with her innocent mouse eyes. She made a few sniffing noises and squeaked once before a loud rip sounded. A long, bald mouse tail shot out of the new mouse's pants, causing her to turn her body and get a look at it. She looked back at Belinda with an embarrassed look on her mouse face, her tail flicking behind her.
Belinda stood up off the pile of garbage she had been sitting on. She locked eyes with the young grey mouse anthro standing in front of her.
"Well, looks like someone was hungry!"