Embraced Within a Cavernous Booty A Shrunken Roommate (Re-upload) chapter 17 by copier · original author: azazel8

[This chapter was written in collaboration with kla]

“…my thong, so you can experience what you missed with Dr Forest.” Your eyes boggled as Allira turned sideways to show you the swell of her rear in all its glory, running a hand across the smooth flesh before reaching in to fish out the incredibly overstrained piece of underwear which you were apparently intended to replace. From what little you could see of the tortured undergarment as it was pulled from it hellish prison, it may have once been intended as panties, put had found itself swallowed by the mammoth behind it was expected to hold, every inch dripping with sweat.

As she worked to get a good grip on the buried fabric, Allira continued to speak in a manner that did nothing to put you at ease, as if anything could right now. “I’ve always had such trouble finding panties or thongs in my size. Most of the time I have to settle for ‘close enough’ and end up ruining them within a couple of weeks.” Breaking the most persistent seal of sweat with a wet slurp, she smiled as her panties finally started to emerge. “So this will be an excellent way both for you to see just how useful you can be, and to let you experience the great joys of being used firsthand.”

You tried to stutter out a protest, to let the redhead know that you had already experienced being used by oblivious and malicious women alike, and there had been no joy involved, at least not for you. That you had never wanted to be used as Rachel’s thong. That you didn’t even know her. Unfortunately, Allira chose that moment to turn away fully as she tugged her panties down to her feet and the full moon of her booty filled the sky above you, your voice unheeded and attempts to signal distress unseen. For a moment you feared the sky would fall upon you, that you would be buried beneath your so-called caregiver’s derriere as she fell back on the bed without a care, but then the panties were finally freed and with a kick landed on the bed scant inches from you.

For the briefest of moments you were pleased just that the used garment had not fallen directly upon you. Then the heat of their presence flooded over you together with a pungent scent. You choked on the fumes, thick and oppressive and speaking of the burning miasma from which the now liberated panties had emerged. Already you could feel sweat pooling on your own squishy flesh from proximity alone, and you could scarcely imagine how bad the smell must have been at its source. Above, Allira turned back to you, and through watering eyes you watched her bend over, tortured bra straining to retain her chest as you were left staring straight into her cavernous cleavage. You tried to focus, but between the fumes and the sight before you your mind was unable to do so.

Slender fingers closed around you as Allira giggled cutely, misinterpreting your stupor as one of awe and anticipation. Hands began to work you once more, undoing what progress you had made towards reforming. Compelled into action, you tried once more to explain that this whole situation was wrong, but the ochre-skinned beauty simply spoke over you as she began to knead you like dough, hands working in concert to form you into a long string. “When I was younger, I had a few… growth spurts.” The blush on the young woman’s face made it clear she wasn’t just talking about height. “I was constantly having to get new underwear to fit me, and I had such difficulties with sweat and… other issues. I still do honestly.” Her expression turned wistful, though the blush remained. “Back then, I wondered how my mother, who is as curvy as me, never had trouble getting panties that fit, and why she never seemed to have to worry about staining her pants with sweat. So, eventually, I mustered the courage to ask her while shopping for new underwear for what seemed like the hundredth time. I was surprised by what she told me, though you could probably guess.”

There was a pause in which Allira waited for you to make a comment, though after glancing down at her hands and your thoroughly mashed form she realised her error and continued with another giggle. “Well anyway, it turned out my mother had been using a tiny as her thong since before I was even born, and it had been the only thong she had worn for that entire time.” The redhead’s deft fingers had put a stop to any attempt you might make to protest further, ironing over your mouth and stretching your face to form what you dreaded would be the seat of your intended thong form.

Already in pain, you wondered why your one inch form was even able to be stretched this much, beyond what anyone could reasonably expect, and just how thin your body had become. Ignorant of your thoughts, Allira continued to weave her story of some other man’s similar misfortune. “You see, my mother was dating a boy when the shrinking epidemic first swept through their home city and the boy was unfortunate enough to catch the virus. They were on a date at the time, and my mother suddenly found the boy she had been kissing near instantly reduced to an inch in height.”

The giant nurse smiled brightly, eyes flicking down to you with a warmth that belied her intentions. “But that tiny, he didn’t want to return to some distant family, he wanted to stay with my mom. My mom had struggled for years to find comfortable underwear, just as I do now, and it hadn’t gone unnoticed. That little trooper declared right then and there that he wanted to support her as a thong for the rest of her life.” Chestnut eyes sparkled now like a young girl reading about a prince charming saving a willing princess, and you felt your blood run as cold as it ever had. You could feel your body being worked wholly into the shape of a thong, and as you were lowered to the floor, you looked up in mounting horror as you realised the full scope of the delusions you were dealing with.

Allira noticed none of your fear, seeing only a tiny who had been morphed into a form in which you might one day learn to find the same happiness as her mother’s thong had found. “That was twenty years before Baker’s Law, so they hid their unique love from the world. Officially he went missing along with so many others after the epidemic, and I hope they too found that same happiness. You could say that my mother’s thong was a real pioneer.” She smiled at the thought, even as she began to work you up her own legs, making sure to position your face to receive the maximum benefit as her mother had shown her. Hopefully, one day you too would be able to experience and provide the same bliss as her mother’s thong, though she dared not hope that it might be with her.

As you found yourself accelerating upwards, unable to flee or even protest, you wondered if Allira even knew the name of the man you were now doomed to imitate, if she ever wondered who he really was. Such thoughts were scrubbed away as you were pulled between the nurse’s buttocks with a silent scream, the massive curves parting reluctantly to allow you passage as you instantly found yourself entombed within a world of heat, sweat and overwhelming miasma, which you knew was only the beginning. It was not the first time you had been in a position like this, but never before had the woman using you had quite as much junk in the trunk as the massive and oblivious Allira.

The weight of each cheek, pressing against you as if desperate to touch one another, felt as if they were going to crush you to paste, regardless of how soft the flesh was, and it only got worse as the redhead pulled you tighter, stretching out your tortured limbs and twisting them into knots. The pain of your tied-off extremities though was quickly lost against the much greater agony of Allira pulling you tight within the depths of her ass, the heat and smell reaching a crescendo as you found your face press against a surface you would rather not contemplate too deeply. To think that another man like you had experienced something similar to this for some twenty-five years was a near unfathomable thought, and with what little consideration you could spare for someone other than yourself, you wondered if any consciousness at all even remained within his abused body.

For the longest moment, if felt as if you were going to break. That you were just too small for this kind of thing and this torture would come to a blissful end when your body was torn apart. But instead you held form, your body stretched and tortured but resolute, even as Allira gave her butt a little wiggle to test your fortitude, sending a massive vibration through your prison as you groaned in pain. If your groan was heard of felt, your new wearer paid you no mind, her voice from above carrying no hint of concern or remorse. “There. I’ve never had a thong that has fit me so well in my life little one. Can you see now, how useful a guy you can really be if you just believe in yourself?”

You were in no position to respond, and in truth Allira did not expect one, confident that you were experiencing the bliss of being used as so many had before you, and taking your first step towards recovery. As she pulled back on the rest of her clothing, her only regret was that you could only experience one part of her at a time, as there were so many potential jobs she couldn’t wait to introduce you to, but that would come in time. As you suffered, she began to walk around the room, butt cheeks sliding together laboriously as they chewed you up with the barest of movements from your host, who was merely taking the time to straighten her bed and dispose of her used panties. What was painful for you however, sent a shiver of pleasure down the massive nurse’s spine, and she bit her lip for a moment as she ran a hand across her posterior with a happy and content smile.

Reluctantly shaking the moment off and reminding herself that she a job to do, Allira turned to leave the room once more, steady footsteps carrying her towards as the door as she headed out to…
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April 23, 2025
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