Meeeow!
Maddie wakes up in the morning to sunlight in the window, feeling refreshed. her Siamese cat rubs against her sleeping face and meows again, seeking attention. "Aww, Tinkerbell, you woke me up!" She complains lightheartedly, used to being a cat owner. Feeling you stir awake inside her butt, she says "and good morning to you too, TB. I guess I have two pets to feed and water, huh? Why don't you show your owner some love and appreciation while I get that ready."
With expert control, she pushes your upper body out of her enough so that you can pull your arms free, just enough to massage and worship between her cheeks while she makes the short walk to her tiny kitchen and opens a can of wet cat food for Tinkerbell. "Getting two different kinds of pet food seems like a hassle, but you're small enough I think Tinky can share." She thinks at you out loud, scraping some residue off the can with her fingernail and sticking it in her crack for you to grab. "Mm, yummy, eat up quick while I get ready now."
Maddie is not a girl that takes a lot of time to get ready in the morning, relatively speaking, but you manage to choke down your soggy morsel in time before you find the cheeks part and you're dangling over the darkness of an empty toilet bowl, its current occupant's body blocking out most of the light. Maddie is American born but her parents weren't, and one tradition she inherited from them is using a bidet to clean up after using the toilet. Today, though, she feels like it's doubly useful because she can just turn it on to give her 'rear passenger' some water.
Without knowing that it was coming, you're caught by surprise and almost inhale several lungfuls of the sudden forceful stream, before she pulls you out of her entirely and sets you on the toilet seat between her legs. Your eyes have had a little time now to adjust now, and you're part relieved, part exhausted, and part in awe as you get your first good look of Maddie's body in the nude - the front end of it, anyway.
Your eyes go from her toned, bronze thighs to where they come together in a mass of short-trimmed pubes, up her toned belly, over her extremely generous boobs and pretty face. If only she'd treat you as well as Debbie did, you think, you wouldn't mind this change of owners one bit.
But that feeling doesn't last for long. She nonchalantly proceeds to relieve her bladder and empty her bowels right in front of you as if you aren't there, only looking down as she washes her butt off afterwards and teasing down: "Paying attention? I might make cleaning up back there your job from now on, so I hope you are. Who knows? Maybe whoever end up buying you will pay extra for that skill. Well, I can think of a lot of different things some of them might want a tiny bitch for so of course we'll be learning all of them for auction day." She finishes up and starts patting herself dry.
You don't think you want to go through all this 'training' so you call up hopefully: "You could sell me back to Debbie right away, Mistress. I'm already trained for her and I'm sure she'd pay extra." But she just looks down in annoyance. "That salesgirl? No way she can afford what I'm planning to sell you for. No more bringing up your previous owners when I don't ask about them, understand? I don't want you reminding all the customers you're secondhand goods. I'll let it go this time, but next time you'll be punished."
"Yes, Mistress. I'm sorry, Mistress. Please don't punish me!" You feel your hope die out inside, but don't let it show as you apologize and beg for mercy. Looking down at you between her thighs on the toilet seat, she seems content with that for now - but then something catches her attention behind you. "Uh, oh." She chuckles, seeming more amused than concerned despite the wordage.
The hairs on your spine stand up as you hear a threatening meowl behind you. Maddie hasn't closed the bathroom door, being used to giving her cat free reign of the apartment and you turn around to get your first glimpse of Tinkerbell fixing her predator's eyes at your tiny form up on the toilet seat. You look up frantically at her owner... now yours... for protection, but she makes no move to help and teases you instead. "Oops, I guess she's mad about you stealing her breakfast, huh?"
In spite of this, it seems like she's joking, and you think you're saved after all as she gets up and steps forward, treating you to a gorgeous view up between her legs in the process. But that relief is short lived as she does nothing to dissuade the cat, after all, and instead just stops to squat down with her ass pressed against the seat in front of you.
"I think we best get you back in your home before she eats you instead. Don't you?" She holds it open for you with both hands, giving you a clear view of her brown eye winking playfully at you as it anticipates welcoming you back into your quarters, rubbing it in.
On the ground, an angry looking cat. Behind you, an unflushed toilet bowl. You don't want to go be trapped in there again, and especially not like this. But as the cat looks ready to pounce and makes another angry sounding hiss, it's clear you only have one place to run and this is it. You tell yourself at least it's cleaner now, as you run and hurriedly thrust your arms into the narrow cavity, climbing in to safety.
...
Maddie spends the first half of her day mostly living life as normal, but with considerably more good cheer as she dreams up sales pitches for her little cash cow - more like cash mouse, she laughs to herself - deciding to clench all of a sudden down below while she mops a kitchen floor. She's starting to enjoy the seemingly involuntary struggles she gets in response from that, stimulating her inner depths in ways no other toy quite manages. No wonder that hot little number at the fashion shop got carried away and started showing off. Good thing I'm smarter than to risk losing my investment like that myself, though. She thinks.
Halfway through the day, she finds an unoccupied bathroom and uses one of the stalls to take you out of your confinement. Without being told why, you have some hopes that she's letting up now that it's your second day, but it turns out she just wants to turn you around so you can have your head sticking out and feel your tongue working her butthole for the rest of the day.
"I bet it's gonna get real sweaty back there when I work out later, though, so don't be afraid to tuck yourself in if you think you're going to drown." She grants magnanimously, pleased to hear you groan "yes, Mistress" but warning you to be more enthusiastic with your answer next time.
It turns out that you manage to withstand the river of ass sweat waterboarding you throughout your owner's time on the treadmill, hours later. But it's more or less a moot point, since you can't bear the pain of having your head squeezed between her cheeks during sit ups. Two reps is enough to make you give up and retreat, backing up into the darkness where you're sealed off and trapped until Maddie decides to let you out again.
...which doesn't happen until the following morning. Your dinner and breakfast are shoved in through your prison door for you to enjoy, more fishy-smelling cat food which she assures you will be good protein for your muscle growth. For added humiliation, she adds that she let her cat eat first and then gave you the leftovers, so you don't have to feel bad about stealing from Tinkerbell this time.
After a few more days of this routine, both you and Maddie are starting to get used to your new role as her secret butt pet. Which means that Maddie has to start making some hard choices - unlike, you, who has no choices whatsoever.
The final court date where her former bosses are supposed to receive sentencing is in four weeks now, at which point she'll finally be able to reach out to her old contact list again and see how those silver-spoon bitches felt about making one more, really expensive, under-the-table purchase from her. As much as Maddie is recently starting to come around to the appeal of using her little tiny bitch boy this way, it's probably time for her to start training you on some less, ah, high-security assignments now that she thinks you've been broken in.
You've become settled in enough with the change of owners that she can trust you not to get lost again, if she starts letting you leave your home occasionally during the daytime.
...
Right?
Option 1: Right. You are trained in a variety of roles over the next few weeks.
Option 2: Right. You are trained in a variety of roles over the next few weeks - but Maddie starts to really like having you. Maybe she should pursue a rental model, for regular income?
Option 3: Wrong! Maddie slips up in the bathroom at the mall, giving you a chance to escape to the adjoining stall and call for rescue!