"...a cat!"
"Why?" you ask.
"I want to see what it's like!" she says happy.
Her ears become pointed and move to the top of her head.
Her pupils become slit.
Her nose becomes a small, pink triangle.
Her upper lip becomes split neatly down the middle.
Her hands and feet get paw pads and retractable claws.
She gets a foot-long tail.
Finally, she grows a thick coat of blonde fur to match her long, blond hair, all her clothes
disappear, and a collar appears around her neck with a bell on it.
"I didn't want to go all the way."she says "I wanted to be a catgirl, and your pet!"
"Really?" you ask.
"Really." she says smiling. Then she gets into a more catlike position, and asks "Will you
stroke me, please?"
So you do as she asks, and she starts purring.
"How long do you want to stay like this?" you ask.