"Be my pet-girl"

You stand in frosty silence for a full twenty seconds, it's awkward, but you're sure as hell not going to be the one to break it.
"Okay." Amy says finally. "If that's what it takes." This is followed by another long silence.
"Elliot," she asks, "what...what is a pet-girl?" You probably should have expected this question. Innocent little Amy has probably never heard of petplay. You take a deep breath and prepare to explain.

You feel your heart race in your chest. There is no way she is ever going to agree to this, but you may as well keep going now that you've said it. Anyway, if she can't handle it and thinks you're a total freak, maybe it'll help her get over you faster.

"Well, it's basically what it sounds like." You explain. "You will be my 'pet'. You would sleep in a cage, eat from a bowl on the floor, wear a collar all the time and sometimes be led around on a leash by me." You can see Amy literally trembling at this point as she digests this information. "You wouldn't just be my pet though, you will also be my girlfriend, so we'd still fuck." Amy almost recoils as you say this.
"Are...are you saying you want to," her voice drops to a whisper, "have sex, with some kind of pet animal?"

"NO!" you say quickly. "Absolutely not! It's just a--a roleplay fantasy I have. It's harmless." Amy still doesn't seem so sure. "Look, it's all about dominance and submission." You explain. "A master/pet relationship is symbiotic, they both gain from it. Take a cat, for example, cats are naturally energetic, playful, curious, a little mischievous, I'd like it if you were all of those things and more. And conversely, I will take care of you, as any good master takes care of his pet. I will look after you, play with you, caress you, give you plenty to eat, and a place to sleep and so on." Amy seems a little calmer now that you've explained it, but still very apprehensive.

"Whatever it takes." Amy says. "I said I'd do whatever it takes to keep you as my boyfriend, and so if you need me to be your pet-girl, then I will." My heart is racing. It's actually happening. She's agreed to it. All my fantasies are coming true. I'm going to have a cute girlfriend/petgirl. She looks at you with those big blue eyes and asks: