A trade between one of my favorite artists  ezkerbkun and myself that took me an absurd amount of time to complete. But yay an actual story!

Yes, this all came from the toothbrush scene and my sister love. Please don't judge.

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Her job was an endless pursuit of squashing misdeeds and casual evils, trying to restore a moral balance in a world filled with injustice. Even if her duty could be thankless, her heart wouldn’t ever waver.

And now…the fiery bee has lost her spirit…

Karen frowned at the empty fridge located in the Araragi household’s spotless kitchen, hands to her hips while her eyes tried to trick themselves into seeing at least one pudding cup. The puddles of sweat she left at the front door soaked the floors, a messy after effect of her daily marathon trek through town. The jog that would drain any petite schoolgirl barely fazed the athlete’s endurance levels, but the hunger remained, a reward for her tireless patrol.

“Stupid nii-chan, I’m almost certain it was his turn to buy groceries this week…I won’t let this genius plan to slight your famished, adorable sister go unpunished!” Karen shifted her sweaty body into a rapid twist, shoes squeaking in on the kitchen floor in her rabid dead sprint. The stairs cracked under her stomps up to the Araragi second floor, her path taking a detour from the open doorway of her brother’s room. Instead, her own door slammed shut and she reemerged less than a minute later, her freshly washed skin free from the sweat soaked jumpsuit. Her acquired “punishment attire” lacked any such punishing qualities.

“Nii-chan will listen better if I…um…d-disorinitate him with my extra cutesy outfit!” Karen firmly pulled at her tight shirt and flattened her skirt to psych herself, making her mind ignore the heavy blush and obvious anticipation of catching her big bro’s gaze. Taking careful steps, her bare feet leaned into the doorway. Her head deflated in disappointment, finding no one but a half naked twin curled up and snuggling with nii-chan’s blankets…

Hah?

Tsuhiki moaned in her slumber, switching positions and showing off another patch of naked skin each time. Her shameless displays were nothing new to Karen, but smothering her body into nii-chan’s bed without an invite to her one and only sister…perhaps she was too wicked to be an enforcer of justice.

Her stomach knotted in two as she tried to decide between running off and conducting a city wide search for the pointy haired culprit or body slamming her selfish pointy haired partner. The twitching cramps violating her insides made the choice, knowing deep down she couldn’t last a city wide scavenger hunt with an empty tummy. That barren, groaning tummy the rest of her slim, toned body couldn’t ignore any longer. She couldn’t take one more step with it the way it was.

The dim bulb on Karen’s head lit up while her eyes warped fast between her flat middle clasped in her hands and that grossly exposed sister. The idea was so simple it astounded her simple mind she hadn’t thought of it before.

“Forgive me, sis, but your lewdness is finally catching up to you, ha ha~ It’s time you face justice, and my belly will be the prison” Karen licked her lips as she approached that soft snoozing body, her crotch and thighs flashing her famished sibling. Stretching her body, Karen scratched her chin trying to determine the best path to devouring someone whole. Tsuhiki’s face looked quite yummy, as did her meaty thighs, but she desired a slower burn for this particular punishment.

“Mmm…maybe her fat butt? Ah, that’d totally hurt a bunch…” She pondered out loud before a faint sensation tickled her legs. Looking down, she saw Tsuhiki’s bare toes twitching and digging into the mattress. The drool pooled and swished behind her lips seeing just how meaty the phoenix was from head to tasty toe.

Perfect~

Lacking any finesse or etiquette, the one true fire sister scooped the feet of the fake one and popped all ten toes straight into her gums. Karen’s mouth quivered at first bite, not from reluctance, but from how pleasant and tingly Tsuhiki’s skin felt against her tongue. The taste itself was another delight, the spicy tang oddly reminiscent of chicken wings, but Karen had a habit of eating fast and ignoring flavor when her tummy demanded stuffing. Her teeth pulled in both feet as she took a mighty swallow, not a hint of resistance as both legs slid inside and dived deep into her gullet. She took a dominant stance over her scrumptious sibling still off in dreamland, sitting on her knees on the mattress and sticking her butt out. Turning from bee to hungry tiger, Karen inhaled her siblings thighs and dug her face into the loose kimono, fully prepared to swallow her sister right out of her clothes just to prove some kind of point.

Mmmfh…don’t take this the wrong way, sis, but you’re proving yourself a better meal than an official fire sister! If I gave you a single lick on the cheek before, I would’ve ate you up every day~ I can’t wait to see nii-chan’s face when I’m carrying you like a baby~”

Distracted by her own pride, Karen suddenly noticed her sister’s bare tummy was filling her mouth. True to her reputation, her disturbing physical strength and efficiency had gobbled up Tsuhiki in less than 3 gulps.

“Mmmgh…Rousokuzawa…s-stop…not tonight…” Tsuhiki murmured in her half swallowed state of peaceful sleep, her feet smushed at the bottom of the bee’s stomach unaffected by the invasive stomach acids. Rolling her eyes and her tongue, Karen extended her lips and swallowed up her chest, leaving everything but her head and shoulders obscured behind Karen’s stretched out pink skin. Even with an everlasting spirit dwelling within her, Tsuhiki’s diminutive stature when next to her amazonian sister meant she couldn't resist the power and strength of Karen's gullet alone. A slight jerk backward was all it took for her to slide straight down the muscly passageway, tumbling down as a fat bulge before being dumped completely inside, surprising even Karen.

"Mmf, I wanted to taste more of your face, Tsuhi-*URRRRRRRP*" The thick cloud of gas choked out, the premature arrival of its sought after reward conjuring up an abrupt need for release. Her girly clothes barely covered the smooth sister bulge taking plenty of space on a pervert’s mattress. The imbalance made Karen’s legs wobble, settling to plop down and rest side by side with her inflated gut.

“So…sweaty…this shouldn’t be hard to deal with…” Her determination wavered as the gut busting meal settled properly as dead weight pinning her down. Swallowing her sister was supposed to give her the energy to push her thick legs across town for justice’s sake, but the gurgling paunch did what most heavy meals do; keep her lazy butt immobile and fatigued. “I…*urp*...didn’t think this through, did I…”

“mmgh….mmf?....MMGH?!”

Awakening half crushed in a shallow acidic pool greeted Tsuhiki as well as it could have, Karen catapulted away from a cumbersome escape into sudden sleep by the expected violent tantrum. Shaking and stretching her limbs into the wet walls failed to make any negative impact, seeing as the dull thuds only made Karen start to giggle from the bizarre sensations. Her loud wails of confused aggression became muffled by the soundproof padding of skin, a response Karen found adorable over unsettling from how helpless the phoenix looked packed into her lap.

“It’s okay, Tsuhiki…as long as you fight, my gut can’t possibly win, hehe. I’ll let ya out…later…” Her slurring confidence in her partner was horribly misplaced, downplaying how efficient her tummy was in dealing with the toughest of its nourishing spoils. Even if her plans were aborted halfway through, she had finished her end goal of a stuffed belly so she felt free to yawn and relax into the mattress creaking under the weight. The pleasing thoughts of her brother begging for forgiveness faded under the satisfying fullness from sweet sister. Her heartbeat dulled and her breathing steadied, it wasn’t hard to doze off under the warm belly blanket.

Tsuhiki’s voice failed her at last, a scratchy howl pitifully dying out after shrieking at her sister’s horrible words of comfort. Only the groaning chamber answered her, tightening around her to end all of her erratic strikes and contort her melting limbs into a small pocket. All that explained her current state as a softening ball of protein was her own hypothesis, Karen going off the deep end in her moral principals. After so much sheet snuggling they did together in their brother’s room and suddenly it’s a crime worthy of execution? Tsuhiki wanted to get the last word in, but her head spun as best it could from how much it hurt to think. The dulled pain despite bathing in the rising pool of sickly green meant her sister’s iron stomach had claimed her lower body, almost amusing the twin in vague pride for her tormentor. The love in her heart failed to fade even as she awaited the acids bubbling at her neck, dissolving the skin cells to reach inside. At last, she accepted a premature end that wouldn’t actually come.

so sweet and pure sister…g-go ahead and claim your reward from your sinful twin…

The few hours that afforded Karen a post meal nap crept by, her hands never leaving her bulging expanse curiously rounder than before. Poor Tsuhiki’s malleable form held out as well as it could, meaning she had to endure fresh excretions of acid that bathed and liquefied her regenerating skin and muscle. Karen’s obnoxious snores kept her beating at the walls with unreserved aggression for a whole hour until she lacked the energy or limbs to continue. Her semi solid state burbled idly without any disruptions from then on, her conscious mind begging for an exit frying faster than her body could.

A dull sensation traveled across her bare belly, Karen wincing in discomfort after being stirred out of her post meal nap. She tried to swat at the source, but it refused to budge or relent, only adding on the pressure until an unavoidable consequence.

Urrrrrrrrrp!

Aaah!

THUD

Karen’s eyes blinked open, an adrenaline surge from the familiar voice falling away. She failed to push her bed filling stomach to the side, but the black ahoge rising over the edge of her paunch confirmed her suspicion.

“Nii-san….good morning.” She yawned and scratched what she could of her pale expanse, mostly sure it hadn’t shrunk since her abrupt passing out. The roundness was peculiar but she was satisfied with the sloshy touch her fingers gave it, the thought of Tsuhiki enjoying a bath in the center warming her heart.

“I-It’s 9 at night, Karen! …Y-You are Karen, aren’t you? I’m going to sprint away if you’re some hideously bloated doppelganger!” Koyomi’s cowardice remained firm in the face of this monstrosity hijacking his bedroom.

“Does Nii-san rub his hands on monsters around town? You’ll lose them one of these days if you’re not careful.” Karen should’ve been angrier from his rude accusation of shapeshifting, but her heavy, unmoving meal clouded her mind in continuous fatigue. “How long were you sexually harassing me and my tummy, eh?”

“I-It was an inspection, nothing more! The first thing I see coming home is an empty house and a blob of fat eating my sheets. You and your sister’s safety was my top concern.” He tried to look cool and confident, but his sweaty frame kept gawking at the boulder of fat shifting and groaning. His fingers fidgeted against his palm as it called for him to continue thrusting into what looked like at least four pantries worth of food.

“Don’t worry, we’re both safe right here…mmh, I’ll punish you later for your crimes…” Karen rubbed her thighs against her gurgling mound, trying to tuck Tsuhiki in as much as herself in for another hours of snoozing, not realizing her words were a little too explicit.

“Eh? Both of you? From here I only see one blob of a little sister before me…” The elder Araragi’s blood ran cold in an instant after the implications penetrated his painfully thick skull. Lacking any grace, he rushed forward and pushed both of his hands straight into the blobby bulge. In quick fashion, Karen’s eyes popped out as her mouth spewed a toxic cloud that enveloped the room in a mist of basted phoenix fragrance.

“D-Don’t just! Aaangh~” Her eye sockets watered in an instant from the vulgar sensations and the putrid belch, a full inspection started at the hands of her older brother’s focused assault. She sat up as best she could, focusing all of her effort to witness the havoc. Koyomi’s startled gaze was an unnerving sight for her, but not as disturbing as the wry smile that immediately replaced it.

“Is this an illusion? A dying dream? After all of these peculiarities, I’m now faced with the terror of one twin eating the other?!” He had already dug hard enough to find a solidish shape imprisoned in the center, but his hands refused to give in at a single conclusion. A hidden switch turned on inside him, the pervert was determined to see how much of the phoenix had plumped out the surface and underside of his remaining sister’s belly.

“Nii-san, hold on! C-Can I at least explain before you go hog wild! Stoop…haah~” Karen was hopeless before her brother’s so called bout of “terror”, apparently having always secretly held a fascination with her stomach. The twin-on-twin gluttony was killing off his rationality, his grin aimed back up at Karen’s squirming nervous expression.

“Tsuhiki-chan always seemed like the one who’d do something like this, were you scared of that too, Karen-chan?” He laid his chin down into the squishy surface, playfully offering a small pause for a response.

“No, I-”

“And yet she’s the pale fat spilled out before her family. I never imagined this taking place honestly, I would’ve warned you it wouldn’t be a simple task breaking her down.” He abruptly hugged both sides and listened in on the inside, eager to find out if she’d resuscitated herself back into a living mass he could tease.

“Nii-saaan, p-please…control yourself! Tsuhikis…t-totally fine inside me…” Karen defied his piercing words, but being put under the spell of his kneading hands slowly broke her resistance. Her mouth hung agape like a baby bird as she resigned to the rhythmic pleasure. Her tummy buckled as both brother and sister leaned their body weight into it, breaking apart Tsuhiki yet again just as she was starting to reform parts of her upper body. The steady, solid paunch deflated further from the combined pressure, making the bean bag of partial human goo spread the quarts splashing inside out. Both panted heavily in the aftermath, a mixed reaction of lust and disgust in their sister blorping struggle.

“So devilish, onii….super, super devilish…” Karen stifled her moans, trying to put strength in her shame and enforcing voice but failing completely under her own peaked desire. Her brother responded with barely a small twitch while his exhausted face pancaked into the sloshy smooth surface he laid upon. The stomach awash with flames and slurry groaned in annoyance, knowing that it put an extra heavy dent in its immortal meat pile. Its owner ‘s eyes lit up in shining desires that matched her belly’s cries, taking a long alluring look at her remaining brother turned demon. Her goals were still in sight now, revenge for the missing pudding that started this ongoing tragedy of the Araragi household.

“D-Don’t get mad, onii-chan, I have to avenge Tsuhiki and my defiled womanhood now.” Karen clenched her arms, dragging her brother’s face close to her stretching jaw. His weary eyes blinked into the darkness while his chin and pointy hair became drenched in built saliva, the fire sister’s immediate moan of satisfaction greeting his ears before the plunge…

Her stomach was soon restored to its former solid glory, albeit with the shrill tones of her brother’s despair.

“That’s enough for today….*urrrp*” Her face still wore a mask of weary pleasure, but it all fell away once she was forced back into dim consciousness by her shaking belly. The fatter thighs did a fine job in bending her belly inwards, Karen giving the massive expanse a final rub down with her toes as well. She listened in on the sharp pangs of a healthy digestive system, more prideful than guilty her family helped train it so effectively.

“Good night onii….”

The second course dunked himself into the sister slop again and again, a futile self harming struggle while he kept bargaining with the snoozing princess. Hours upon hours of a final struggle. Araragi was claimed at long last by the mixed broth after Karen yawned and turned over in bed, smushing her brotherly food baby into a widely stretched paste. In his last moments as a bro-blob, he prayed to the heavens that he’d take some precious real estate all over her body.


—

Three days in an uninterrupted food coma, and the Araragi sibling left standing was far from amused. She was a tad embarrassed at being utterly wrong on her brother and sister’s digestive resistance, seeing as her belly had shrunken down into a miniscule deposit of fat that fit into her right hand.

Still, most of her embarrassment lay in how enormous her breasts and butt had become, Tsuhiki and Koyomi welcoming her with an aggressive jiggle at both ends. Her tracksuit clung as tight as it ever did, digging into the wobbly breast size that dwarfed Hanekawa-san’s gifts by several letters on a bust chart. She lacked any clue the squishy fat in her hands held any sentience, the silent agony of her completely innocent sister continuing in a true permanent state.

Her cheeks jostled and shook in her wobbly step, baring all of her brother’s compacted nutritious features. She knew deep down he’d be somewhat satisfied forming another life as her ass meat, always keeping her secure under her midsection.

Her nervousness tripled with her body’s new delightful girth, Karen patted herself down and looked out to the blazing sun while shutting the front door. She breathed in deeply, focusing her senses and strength…..a thunderous belch of loose black hairs joining her exhale.

“I think I’ll need to add an extra 20 miles today…”

theweirdone445: I'd love constructive criticism and explicit opinions on my works. I aim to improve and your feedback is very important to me.

Of course, any words of praise are appreciated too! :)

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