Cassandra looked back in the mirror at her diapered self and then back at the ring on her finger before making a wish that would do something very important. "I wish that only I could use this ring, and that I can use it even when I'm not wearing it or near it." Cassandra wished before taking off the ring and putting it on the counter with a nod. Now she wouldn't lose the ability to wish if she lost the ring, and no one could stop her from wishing.
Now Cassandra's mind started to wander as she put her hands on her hips, feeling her diaper crinkling beneath her hands as she thought about what to wish for now. 'I've always liked animals... maybe I could be part animal.' Cassandra thought before making her wish. "I wish I had a black cat's tail proportional to my size." She wished, turning around the having her back to the mirror as she watched the change happen.
It started slow, a small nub sticking out above her diaper before it grew quickly, becoming covered in sleek black fur as Cassandra felt the new nerves and muscles in her tail as it finished forming, starting to swish around lazily behind her as she smiled and stretched before feeling her tail with her hands.
'How far do I want to go...' Cassandra wondered as she looked at her diaper before deciding quickly. 'Pretty far, no need for clothes, even diapers.' She decided, taking her diaper off and standing naked in front of the mirror as she made her wishes. "I wish I had cat ears in place of human ears, cat paws in place of and hands, three rows of breasts, the ability to walk comfortably on all fours and fur covering my nipples and vagina unless aroused." Cassandra fired off, causing her changes to start as her ears started to tingle.
Watching in awe at the mirror as her ears migrated up her head, becoming covered in black fur before enlarging and morphing in a pair of cat ears that gave her a stronger sense of hearing as she blinked, smiling as the next change began. Her hands and feet started to morph as well, her fingers and toes shrinking as claws grew out of her fingers and toes, thick pads forming on her palms before her hands inverted themselves, forming them to face down as fur covered her new paws. Next her chest started to gurgle as four more nipples formed on her chest before breasts inflated behind them, giving her three pairs of C-cups as Cassandra smiled at herself in the mirror.
Next her hips popped and cracked, forming her onto all fours as her spine locked in place, making her now a quadrupedal girl as her fur started to grow down her back to her tail, a nice thick line down her spine that branched out in six places to form fur around her nipples and exposing the rest of her breasts. the fur even went past her spine and concealed her ass and genitals she she smiled, looking at herself in the mirror as she padded the floor. "Pur-fect" she joked, giggling before staring at her nose for a moment. "I wish I had a cat's nose." She said, watching as her nose shrunk and her sense of smell improved. "Much better" she said before trying to stand up on two legs, and failing and falling on her ass. "Right... I walk on all fours now." she realized again, flipping herself over as she stared at the door. Now what?