She makes you the bitch

Once the two of you are in her apartment, she immediately says, "Strip." Once you've stripped, she points to the ground and you kneel in front of her. She stands over you, looking slightly menacing.

"Okay, tell me the truth. What was it you used to call me when I wasn't around?"

You're not sure what she means. "When was that?"

She kicks your thigh. "Don't be cute! Emma already told me. It's starts with 'stuck up' and ends with..."

You struggle not to answer, but Emma told you to follow Isabella's orders like they were her own, and not answering Emma's questions would be a horrible sin. "Stuck up bitch."

Strangely, Isabella smiles at the insult. "That's right! Except now you're going to be the bitch! So get on all fours."

You do it while she goes to the bag Emma gave her and pulls out a dog collar. She roughly puts it on you, then goes to another bag that was already on the table when you came in. She pulls out something furry, then approaches. When she's near, you see that it's a butt plug with a dog tail on the end. Emma has stuck a lot of stuff up your asshole lately, but the plug is bigger than any of them.

"Please don't," you manage to say, using more resistance than you knew you had left.

"Bad dog!" yells Isabella. She grabs a fashion magazine off the table, rolls it up and smacks you on the nose. "Dogs don't talk! Now, act like a dog. Only make dog noises. Only walk on all fours like a dog. Also, make your hands into fists. Right now! That's good, dogs don't have fingers. Unless I tell you to do something that you need hands for, you can't open your fists. They're just paws now."

Isabella walks around behind you. She very roughly shoves the butt plug into your ass. It really hurts, and you whimper like a dog, unable to do more.

Isabella walks back around in front of you. She smiles again, then bends over and scratches you under your chin. "You're going to be a good doggy this weekend. You're not going to do anything to remind me that you were ever a person. You're not going to get on the furniture. You're not going to bark unless you need something. If you need to pee, let me know and I'll take your outside. I have a little backyard because I'm on the first floor of the apartment building, so you can do your doggy business there. The neighbors might see you, but most of the ones with a view are just dumb frat boys. They'll get a laugh out of this."

She leans down, putting her face so close to yours that you can feel her hot breath. "One more thing. I didn't just say you'd be a dog. I said you'd be a bitch! And bitches don't have cocks and balls!"