In an instant, you're a catgirl. A look in the mirror confirms that you're a cute one two. You have black hair that goes down past your hips and the fur on your ears and tail is black too, except at the tips, where it turns white. You have a nice figure and respectable C-cup breasts. You also note that you are naked, save for a bell collar around your neck.
You turn back to your host brother.
"What did you do to me?" you demand.
"You see, I am omnipotent," he says. "So, I made you into my pet catgirl. If you're good, I might change you back."
"If I'm good? So you didn't make me super obedient or loyal or something?"
"Nope. You'll do what I say of your own free will. First order, call me Master."
"Yes, Master," you say.
"Good girl, now, suck my dick."
You...