Melanie gave her father very little thought, and did not even know it was his birthday. She was eating a bowl of porridge when it suddenly began to taste disgusting to her. Rummaging in the refrigerator, she found some leftover meatloaf, and devoured it in a couple of bites. OK, she thought, but still kind of mushy, bland and overcooked. She went into the backyard and saw a squirrel on the ground. Suddenly she knew what she was really hungry for.
With the claws and teeth that had suddenly appeared, Melanie pounded on the squirrel, killed it and began to feast. The raw meat was delicious, and the bones splendidly crunchy. The blood made a splendid sauce. Her raspy tongue liked her kill clean. She kicked off the stupid pieces of material--she remembered that the humans called them "clothes"--that were hampering her movements and noticed that her skin was changing from a dull monochrome, adopting vivid colors and contrasts. She felt something growing from her butt and gave her new appendage an experimental twitch.
Melanie was now an orange and black striped girl with the tail, claws, teeth, tongue and digestive system of an adult Bengal tiger. The physical changes stopped there, but the mental did not. Melanie's sense of herself as a human girl was replaced by a sense of herself as a tigress. Her still predominantly human body became disgusting to her, weak and soft compared to her true identity as a tigress. She now thought of humans as prey--delicious, delicious prey.
Joey the rabbit in particular.