You found yourself at Hermione's door. You opened the door and entered the room. You found Hermione wearing only bra and panties, on all fours with her ass raised in the air. Her face was hovering over a saucer of creme, which she was lapping up with her tongue, and there were several balls of yarn within easy reach. You also noticed that there were whiskers decorating her cheeks, cat ears poking out of her hair, and a tail waving around above her ass. She had golden, slitted cat's eyes, and a blush on her cheeks. The second she noticed your presence, she shot up into a kneeling position and froze. There was a jingling sound, and in her new position you could see the bell collar fastened around her neck.
"H- H- Harry. I- I can explain." she stammered
"It's okay, Hermione." you said
"Huh?"
"I'm not going to judge you for what you do in your room alone. I'm your friend." you reassured her
She relaxed a bit.
"Is that leftover from the polyjuice incident?" you ask
She nodded.
"Yes. Madame Pomphrey couldn't completely get me back to normal. So she had Professor Flitwick charm some jewelry to hide my cat features." explained Hermione
"It looks like you've come to enjoy some of the perks though." you replied
She blushed deeply and bowed her head a little.
"Yes. I have." she admitted
"It seems to me like something is missing, though." you commented
That really caught her attention.
"What's that?" she asked
"It seems like you enjoy being a house cat. But there's one thing that house cats have that you don't." you said
"What's that?" she asked
"An owner to dote on them and shower them with affection." you explained
"But who would-" she cut off as she caught on to what you meant.
"You would do that for me?" she asked in awe
"Of course. But that means you have to assume the level of authority of a house cat. Are you willing to do that?" you asked
"Yes!" she exclaimed
"Then repeat after me: I, Hermione Jane Granger,"
"I, Hermione Jane Granger,"
"Swear on my life and magic,"
"Swear on my life and magic,"
"To remain the pet of Harry James Potter,"
"To remain the pet of Harry James Potter,"
"To do with as he wishes,"
"To do with as he wishes,"
"Until my final days."
"Until my final days."
"So mote it be!" you and Hermione finished in unison
"It's done." you said
You fastened a leash to the collar, and began to lead her out of the room. She started to get to her feet, but you gently pushed her back onto her knees.
"Kittens walk on four legs." you told her simply
"Thank you Ha-" you put a finger to her lips
"And kittens don't talk. They meow and purr." you said
She opened her mouth, but then closed it, and smiled up at you.
"Meow." she purred sweetly
You scratched behind her ear, eliciting a pleasured purring. You led her out of the room.
What now?