Lucina was looking within some of her family's lore. She was told from her father that she had a secret hidden within her: she had the ability to transform into an animal under the full moon. She would be in control, however, instincts could kick in sometimes, and she would be animalistic then.
Lucina didn't know what this was to be, but she was curious about it. She had come of age, and willing to find out what it was. She was had read that it would be best to head into the wilderness in order to make sure that their animal would feel at home.
Lucina was quick to hitch a ride, and she made sure to leave her sword behind, seeing as she wouldn't need it, and would flip out if she lost it. Lucina paid the horseman when they arrived in the area. Lucina looked around, and saw that there was lots of trees, and a few open spaces.
"I wonder if this will be like a wolf, or a bear," said Lucina to herself.
Soon, the sun was gone, and the moon shown down. Lucina felt something pop out of her mouth. She was shocked to feel flat, bucked teeth. She then felt her hand tingling, and lifted it up to see black fur growing on her fingers, as her hand swelled up, ripping her gloves apart, and her hand now a massive paw! She lifted her other hand to see it had followed as well!
Lucina's body then got larger, as her breast shrank into her body. She was also a bit hunched over a bit, and her nose curled into a pig like bunny nose. She then cringed, as she felt something growing from the base of her spine. She looked between her legs, and watched a large white cotton tail burst from her skirt, and she realized what she was becoming
I'm turning into a giant rabbit! she thought to herself, Next time, I'll be sure not to wear clothing!
Lucina's feet felt cramped, as her boots were stretched to their limits. They burst open, revealing giant fuzzy rabbit feet! Her legs then ripped out the top part of her boots, and her bodysuit, as they got thicker, revealing black fur in the process.
As of now, Lucina's body was now covered in fur, and her hair receded as well. Her face bloated up, and her ears popped into floppy rabbit ears, with her tiara popping off, and her cape snapping as well. Then, her body got so big, her tunic and body suit started to rip apart. Soon, it got so tight, she had to rip it off. She was not proud to do this.
Lucina looked at herself, and saw in the river nearby, that she was a giant rabbit indeed. She was not expecting this. However, it was done, and she decided to explore the wild in her animal form. However, she also unconsciously let her instincts kick in, and she raided some gardens with many vegetables.
That morning, Lucina woke up, and felt like she had a massive hangover. She shook her head, and saw that there was a bit of an impression in her bed. One with a massive body, and thick ass.
"Oh, this is going to be a hard one to explain to the servants," she said to herself, as she itched her ear with her foot.