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everything about you

Summary:

“Welcome to day one of your weekly training!” Zoey slaps something on the coffee table, excitedly hollering as she ignores the way Mira is currently imitating the expression of a fish gasping for water.

“Let’s. Get. You. Stretched!” Zoey says it like some game show host, dramatics exaggerated until her tone is borderline comical.

“Weekly… training…,” Mira’s mouth drops as her wide eyes land on the item Zoey threw onto the table.

It’s a toy.

A dildo to be exact.

It wobbles on the table from the force of Zoey’s throw.

//

or a polytrix fic where zoey puts mira through a week's worth of size training so she can take on rumi's demon form

Notes:

hiiii i've been working on this size training fic for foreverrrrrr lmao and it's all for jesse who came up with this idea in the first place, hope you really really like what i wrote!!

please take this with a grain of salt bc sex is different for everyone in real life, plus this is fiction so what might work here doesn't necessarily equate to the real thing in the real world. practice safe sex, yall!! writing polytrix in this au was super fun bc i literally just wrote them as lovergirls confidently and safely exploring their romantic/sexual life together, i think my teeth were hurting from how sweet their love is for each other lmao i have headcanons that the girls are all switches but for the purpose of this size training prompt, mira bottoms for the majority of this fic teehee

i had to split this into 2 chapters bc there's a character limit per chapter which is wilddd lmao
anyway, hope you all enjoy reading this! i spent way too long thinking about different sex toys and scenarios and limb positionings over the course of writing this fic since january lmfaooo

some songs i was listening to on repeat while writing this:
everything bout you - dress
start a war - jennie
handlebars - jennie and dua lipa
acts of service - doja cat
adult swim - kai

(See the end of the work for more notes.)

Chapter 1: prelude

Chapter Text

Big.

There's no doubt that Rumi is big. 

Big in confidence, big as she is bold on stage; big in heart, and big in the way she loves Mira and Zoey. And you know, as if she wasn’t god’s favorite already, she’s big down there too. 

And somehow Rumi in her demon form is even bigger as she encapsulates all of those traits and more. 

Mira can see it now—the way Zoey takes Rumi so easily despite the thick girth, the way it’s stretching out her pussy, the way a faint outline of a bulge extends from Zoey’s stomach—and yet Zoey takes it like it’s nothing. She takes it like a champ and she makes it look so beautiful while she’s at it too. Filthy desire framed by want and trust and affection. Everything that makes up the definition of unconditional love in Mira’s eyes—this is the picture that she sees in her mind: Zoey and Rumi tangled in one another, giving and taking in equal measure, pleasing each other not for their own sake for the love of the game. 

Desire thrums through Mira’s veins, simmering like a scorching sunburst beneath her skin as she watches her lovers. She’s warm all over, Mira realizes with a gobsmacked sort of awe, aching and dripping wet between her legs as she watches Rumi push deeper into Zoey, as she watches Zoey take every inch knowing the hard lines of her limits. 

Schlick schlick schlick. 

“O-Oh, god, please—Rumi!” 

Plap! Plap! 

As she keeps her legs spread open, Zoey throws her head back onto the pillows, kiss-swollen lips parting to release a guttural moan as she takes Rumi’s cock inside of her. Again and again. Deeper and deeper, those thick inches disappearing just to reappear, eagerly swallowed up by Zoey’s cunt as the sound of wetness gliding along slick flesh repeatedly fills the room. The obscene clap of skin punctuates the way Rumi bottoms out. 

Plap! Plap! Plap! 

“That’s it, baby. You take me so well. Just look at how much you’re dripping for me.” Rumi growls roughly, a low and throaty sound that has goosebumps erupting on Mira’s skin. She shivers and pants softly, her jaw going slack as she watches Rumi’s gaze flicker gold, a hungry intensity glinting in those eyes as she drinks in the sight of Zoey held in the hands of debauchery and depravity in equal measures. 

“H-Harder! F-Fuck me harder, Rumi!” 

And Zoey who arches her back, crying out so beautifully, so shamelessly as she savors the stretch of her walls, that delectable burn of her muscles yielding to the steady thickness that splits her open, keeping her open for Rumi. She’s so beautiful, Mira thinks as she watches her lover writhe atop the bed sheets, expressing her pleasure with jerking hips and a mouthwatering arch of her back and shameless cries. 

God, Mira is breathless as she watches her lovers partake in each other. Indulgence at its finest. Her own arousal twists and bends in her belly, molten and malleable as she is witness to the way they move together. 

Seamless. Synchronized. 

And Mira wonders. 

She doesn’t really take anything bigger than Zoey’s or Rumi’s fingers, and the strap that Zoey uses on her is a slender small toy, just big enough to make Mira see stars whenever she indulges in letting Zoey take care of her. 

Mira wants it though. 

The way Rumi and Zoey drink and drink from that endless fountain of desire. 

She’s come to realize that she wants that too. 

She wants to take Rumi’s dick just like Zoey can. All of it. The sheer size of it is both terrifying and thrilling. But just thinking about having Rumi inside of her, stretching her out, being so full of that girth—it has Mira panting softly and whining at the lewd thought, the warmth between her thighs spreading to the rest of her body the longer the thought occupies her mind. 

She wants to know what it feels like—what that stretch would feel like, how hot and hard would Rumi feel as she’s filling up Mira’s cunt. She wants the roughness Rumi always applies to Zoey, that savage fucking that looks so animalistic, the hunger that flares bright in Rumi’s golden eyes as she takes what she needs from Zoey. And the way Zoey is so enthusiastic about it, so eager to give and take in this intimate dance the two of them engage in. 

Mira wants and wants, and she wants it so much. 




Breathy moans and the obscene claps of skin litter the bedroom, and Mira feels like a private audience to this unholy event. Riveted by the way Rumi growls, feral hunger paints her expression as her body lets loose, her guard relinquishing as she bears down on Zoey’s lithe figure. Slender legs hook around Rumi’s hips, drawing her closer until there is but a sliver of space between her and Zoey. 

It feels like bearing witness to a celestial event, pulled and lured by the gravity of her lovers like a moon orbiting her sun and stars. 

Natural. Inevitable. 

Undeniable. 

Mira’s hands circle her own torso, playing with her chest as she bites her bottom lip, stifling a moan that grows larger and larger, expanding in the space of her lungs until her control slips. She lets it out in a shaky exhale, moaning quietly as she pinches her stiff nipples, rolling them gently as the sting of pain-pleasure bites at her senses. It feels good watching them, her lovers thick in the midst of passion. It gets her wet, gets her going, and Mira whimpers as she watches vibrant pleasure cascade over Zoey’s and Rumi’s faces. Such visceral reactions that it spurs on her own arousal. 

With another breathless moan slipping out of her lips, Mira lets her hand snake down her navel, slithering past dark rose curls until her fingertips brush against soaked folds. A soft whimper, high-pitched and desperate, leaves Mira as she glides her fingers down her cunt, fingertips gathering wetness on her labia before smearing it over her swollen clit. Erratic are her hips as they jerk at the jolt of pleasure lancing through her when she strokes down her clit. Up and down, a rough circle before pressing down on the swollen bud. Again and again, shuddering at the electric shocks rippling through her body so pleasantly. 

“M-Mhphm…” 

The sultry noise that leaves her mouth garners Zoey and Rumi’s attention, and Mira blinks sluggishly through her haze of pleasure, flushing a lovely bright shade of pink when she realizes their attention is fixed on her. 

“Look at her, oh, she looks so good. Touching herself… hah, to the sight of us.” Zoey’s voice is a sultry purr, a hypnotizing force even as she’s getting ruined by Rumi. 

A huff of breath leaves Rumi, mirth and lust intertwining in her tone as she growls, half moaning as she continues to slam herself deep into Zoey. 

Plap, plap, plap! 

Rumi’s eyes remain on Mira even through her rough thrusts, and the notion is so dirty, so hot that it makes Mira whine. “I know. I know. God, she’s so pretty watching us.” 

The praise blooms in the center of Mira’s chest, warm and thick as it spreads through her body. Her arousal tightens in her belly, delicious pressure curling there as she rubs at her clit roughly. Another moan spills out freely as Mira touches herself in front of Rumi’s and Zoey’s heady gaze. 

“Go on, baby. Keep touching yourself.” 

Zoey’s voice coos sweetly as Mira spreads her thighs further apart, blushing fiercely at how eager she is to show herself off. Wetness glistens on her inner thighs, glinting beneath the bedroom light as it slides down the curve of her ass, dew drops shining before it stains the sheets. 

A wet squelching sound repeats itself as Mira works her hand, lithe fingers circling her clit rapidly, faltering when that pleasure bursts over her in a swelling bubble. A ragged gasp rips out of Mira as her hips jerk, unable to control her movements as she chases after that euphoria. 

“You’re so pretty, Mira. That’s it, yes, yes—“ 

“Nghhhh!” 

It’s not surprising the way Mira’s orgasm rushes up to meet her, vivid molten heat churning in her core as she touches her clit. She cries out, shuddering as Zoey and Rumi keep on watching her, witnessing her unraveling even as they fuck each other. The sound of slick skin sliding and slapping and colliding unfurls in the air, and Mira whines as she lies on the sheets, thighs trembling at the intensity of her high. 

“R-Rumi, I’m—she’s—“ 

“I know, I know—come with me—hah!” 

Rumi and Zoey follow after her inevitably, their shared cries chasing Mira’s like their pleasure was tied to hers. There’s something amusingly profound about it, Mira thinks, threaded fates and all that bounce around in the hazy fog of her mind. 

With a glance over to her lovers, Mira sees Zoey and Rumi slumped into each other, their bodies curled together as they shiver and soak in the aftermath of their shared climax. Mira hums as she drags herself over, pushing her front against Zoey’s back until she’s holding her, sandwiching their maknae between herself and Rumi. 

“Closer, baby.” A soft husky voice beckons her closer, she can’t tell if it’s Zoey or Rumi, just registers the warm affection curling in every word. 

Warm hands slide down her forearms, curling around her sides, and Mira sighs happily when they draw her into their embrace as well. 

This is it, this is exactly where she’s meant to be—crushed between cool, soft sheets and warm skin and devotion dancing on her body in the form of roaming, affectionate hands. 




Curiosity prods at her, gently in the form of tentative thoughts as Mira’s gaze drifts between Zoey and Rumi. Admiring their bodies, the stretch of supple skin and toned muscles, rippling and relaxing with every breath. Glistening with sweat and exertion, a tantalizing sight that takes Mira’s breath away, stunned by how beautiful her lovers are. And then her eyes dip to the shiny coat of release between their thighs, and Mira gulps as desire ignites itself anew at her core. 

“How do you…,” Mira’s words taper off as Zoey and Rumi glance over to her, their gazes utterly soft and so full of affection, something akin to honey-thick warmth. She swallows thickly, a bashful expression unfurling across her face as she feels the tell-tale warmth of embarrassment and want tinting her cheeks and the tips of her ears at the same time. 

When Zoey and Rumi look at her like this, it never fails to fluster her. 

“How do we…?” Zoey prompts with a quiet smile, her fingertips skimming the curve of Mira’s hip. She’s patient as she drags the pads of her fingers across Mira’s skin, taking her time with a soft hum under her breath, like she’s got all the time in the world for Mira. 

It punches the air out of Mira’s lungs, makes her feel all warm and gooey and loved whenever Zoey does this for her. Lets her gather her thoughts and rebuild her confidence until Mira feels like she can stand on the foundation Zoey has laid out for her. She swallows thickly, her chest warm and full with affection for her lover as she finds the bravery to get the words out. 

“How do you take Rumi so easily? When she’s so big like that?” The words blurt out of Mira before she can think to filter them. Or word them in a more refined manner. It’s blunt and honest, and Mira feels herself blushing as she tries to bury her face into Zoey’s shoulder. 

Soft giggling comes from Zoey as her hand rises to stroke at Mira’s soft pink hair. Affection and mirth bloom, and when she catches Rumi’s eyes, they’re a mirror of her own feelings. 

A nod comes from Rumi as she snuggles closer around her girls, taking advantage of her big demon form to easily encapsulate Mira and Zoey in her giant arms. She rumbles a purr and lets Zoey take the reins on this talk, keeping an attentive eye on their lovergirl in the meantime. 

“Well, I’m used to it. It takes a lot of patience and stamina.” The cheeky wink Zoey throws at Rumi makes their giggles turn softer and high-pitched. She coos at the grumble Mira gives her, finding her blushing face adorable. She lets the silence linger between them, allowing time to let Mira’s train of thought disembark before she asks, “Are you curious, Mir? Did you want to… try Rumi?” 

That gets a snort out of Rumi. 

“Don’t try to sell me like some kind of product.” 

But the amusement in her eyes is lighthearted. She reaches around Zoey to hold Mira’s hip, squeezing gently, affectionately as her grip becomes grounding, a steady presence that says I’m here for whatever you need. 

Mira sighs at the gentle touch of her girlfriends, the nerves once dancing in her belly are now diminished thanks to their comfortable demeanor and their clear communication. They don’t mock her or downplay her embarrassment or curiosity, and Mira feels at ease with how open-minded and sweet they are. She melts at their attention and concern, huffing lightly as she leans further into their touch. Like a satellite drawn into her lovers’ orbit, unable to pull away from their gravity. 

“Maybe… I do.” 

“Oh, yessss! This is great news hehehe…” Zoey’s tongue sticks out as she steeples her fingers together, laughing low and dramatically as she rubs her hands together like some sort of cartoon villain. 

“Great news for you?” Rumi’s brow raises as she pokes at Zoey’s side, guffawing at the squeaky yelp she lets out. She pokes a few more times just to see Zoey giggle and blush and squirm like a wiggly worm, beyond amused at her reaction. Then her gaze sweeps over to Mira, amusement quietly shadowed by gleaming concern. “Are you sure? I’m not exactly… the average size here.” 

They all glance down at Rumi’s dick. It is certainly not the average size when she’s in her demon form. 

“I think that’s part of the appeal, babe.” A lecherous grin tugs at Zoey’s lips as she lightly elbows Rumi. The agreeing nod Mira gives makes Rumi splutter, and now they’re both sporting pretty pink blushes while Zoey giggles hysterically between them. 

“I dunno…” Rumi’s concern appears between her brows, knotting at the center of her forehead as she worries her bottom lip between her teeth. 

“Rumi, I do want this.” Mira says as she reaches out a hand, her palm resting on the flat of Rumi’s stomach. She brushes over the hills of Rumi’s abs, sliding her hand leisurely along the lightning shaped patterns crawling up Rumi’s side. Rumi melts from the caress, purring softly as she leans into Mira’s touch. “How could I not?” 

“Okay, okay, fine. But only if you take the time to work yourself up to my size!” Rumi huffs before she leans in closer, brushing their mouths together in a tender kiss. Her words are quiet and firm when she pulls back slightly, soft lips grazing against Mira’s, “I don’t want to hurt you, Mira.” 

And Mira positively melts at the palpable concern, flushing softly at the care and affection dripping from Rumi’s tone. She leans into the kiss, humming against a pair of soft lips as she feels her own chest wobble, helpless against the adoration flooding the space between the cage of her ribs. “You won’t. I know you won’t, Rumi.” 

“I can help!” Zoey butts in with a wicked grin, excitement sparkling in her eyes as she leans in and kisses Rumi and Mira in quick succession. Her arms encircle both of their shoulders—struggling a bit with Rumi’s height before she leans down—and the curl of her lips has the pair pausing, slightly fearing for their lives at Zoey’s savage smirk. “Oh, I have soooo many toys for you to try out, Mira! We’re gonna get you stretched, babe!” 

“Please don’t ever say that to me again.” Mira groans and buries her face into Zoey’s shoulder. 

Rumi merely chokes on a bark of laughter while Zoey only responds with a maniacal cackling laugh. 

The corner of Mira’s lips twitches before they curve into a smile, pressing into the soft skin of Zoey’s shoulder.