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DxD Demon Diet
🕑 Added 2025-10-23 18:12:33 +0000 UTCSeries: Highschool DxD
Characters: Rias, Akeno, Asia, Koneko, Sonia
Contains: Weight gain, round fatties, gas, hypnosis
Commission
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Rias, Akeno, Asia, and Koneko had all gathered in the Occult Research Club building. It was the standard ensemble except for the boys who had gone off on a training mission. That left the girls with little to do as Issei had been the lightening rod for various wacky happenings. Seeing as they expected peace and quiet, the four decided this would be a good time to simply relax and while away the time.
That time would be short lived, however. Unbeknownst to them, a fifth participant was present at their get-together. This figure had cloaked itself but lingered in the corner. It watched them closely, eyes sliding over figures she deemed too lithe. Yes, they were curvy and most bore full, voluptuous breasts, but that was nowhere near enough. A sinister smile stretched across her face as she saw one of the girls stand up.
‘What a shame, what a shame. Only two have any fat and it only goes to one place!’ The figure lamented to herself and shook her head. ‘I simply can’t stand to watch such lovely young ladies waste away.’
Akeno gracefully rose to her feet. “I’ll go prepare us something for lunch~” She cooed and exited the room, unknowingly being followed by the cloaked observer. It was the perfect time for her sinister plan to be put in motion.
Once Akeno entered the kitchen, she was surprised to see a cart already loaded with food. “I didn’t prepare any of this.” She murmured and sniffed the air. The aroma from the food was certainly enticing, but she wasn’t prepared to accept food of unknown origins.
Suddenly, a figure with red skin and flowing pink hair appeared beside Akeno. The demoness Bellavore giggled as she leaned into Akeno’s ear. “It’s ok Please accept the meal I made for you. Take it and share with everyone. Be sure to eat your fill and more” These words were spoken in a low, seductive tone, but they were also enchanted with a powerful spell. They were no mere suggestion. These were solid orders that would be obeyed without question.
Akeno’s eyes became foggy, and she smiled. “That sounds like a wonderful idea! I’ll get this to the girls right away.” Akeno grabbed the cart and navigated it back toward the club room. It was a slow and challenging process as the cart was so large that it nearly touched both walls. Not to mention the food was stacked to a comical height. Still, Akeno guided the cart back to the other girls, who were shocked at her quick return and the mass of her haul.
Rias blinked. “I know you’ve been practicing, but this is impressive…or perhaps excessive.” She said as she sniffed the air. The smell was enough to cause her eyes to fog over and her stomach to growl.
Asia also sniffed the air before her stomach growled. The noise was shockingly loud from such a petite young woman. She became flustered as her eyes quickly clouded over. “O-oh, excuse me, everything just smells so good.”
Koneko fell under the spell just as quickly as the others. She didn’t say anything, though. Instead, she grabbed the food as soon as it was within arm’s reach. Her petite hands sank into the soft buns of a large burger as she carried it to her mouth. Just one bite was enough to cause her flat stomach to bulge outward. By the time she finished the burger, her stomach was as large as a basketball and rumbled contently. “My compliments to the chef,” She eventually said and reached out for more.
What ensued was akin to a feeding frenzy. The girls didn’t fight over the food, but their hands moved in a flurry of motion. Food was grabbed and stuffed into their mouths at lightning speed. Everything edible was simply consumed and hardly savored.
The first part of each girl to grow were their bellies. They swelled as rapidly as balloons, and even created a stretching sound that furthered the comparison. Flat surfaces stretched rounder and rounder, filling out with even small bites (which became increasingly rare). Eventually, their sides began to bow and swell outward as their stomachs demanded more and more space. This progressed until their lower abdomens were nearly as large and rounded as yoga balls. This rapid growth stretched their uniform blouses to the point that gaps appeared between each button. None had popped yet, but their visible strain increased as pale skin was exposed between them.
Rias wasn’t necessarily a dainty eater. The gluttony she displayed in the moment was very uncharacteristic, though. She paid no mind and continued to stuff her face, both of her eyes spinning into swirls. “Akeno UUURRRRRPPPP this is the best meal I’ve HOOUUUUURRRRPPP had in my life!” Rias exclaimed between especially uncharacteristic burps. She practically inhaled her food, which caused her body to grow rapidly and gas to build in her stomach. Her belly had already reached her knees, and her hips began to expand and join the spherical shape of her lower abdomen. The curves were most pronounced from beneath her chest to her belly. Her skirt dug in slightly, which kept her upper and lower body distinct.
For the moment.
Rias was unaware of how her breasts swelled despite how they took up more and more of her peripheral vision. She simply couldn’t get enough food. She reached over her expanded mass and stuffed her face without remorse. The rapid intake of food brought with it some air that rumbled in her stomach. It didn’t take long before some air rapidly shot past her lips. “BUUUUURRRRRPPPP, excuse me.” Rias quickly apologized, but this was just so she could eat more. She swallowed more food, each bite bigger than the last. The food itself seemed to grow in size too. Everything on the cart was larger than before, but no one noticed that.
Bellavore giggled mischievously. She had cloaked herself to enjoy the show, but she was by no means a passive participant. Her magic caused the food to grow in size. The sizes tripled, but the calorie content quadrupled.
Akeno swelled similarly to Rias. Her chest became fuller as she stuffed herself. The top button of her blouse strained and strained until it popped with enough force to fly across the room. Akeno didn’t notice its absence or the revelation of her cleavage. She was too focused on eating. She stuffed herself with incredible speed so that her belly already stretched past her knees. While her sides did fill out, most of Akeno’s growth was focused forward. More buttons on her shirt stretched until the second-highest button popped. That button flew to the side and gently thwacked Asia on the side of her head.
“My, this food is sinfully delicious! I UUUURRRRRRPPPPP outdid myself!~” Akeno giggled, unaware that her eyes progressed from foggy to swirling. She stuffed herself more rapidly, ignoring how her belly rumbled. Her focus was so focused on eating that she almost fully blocked out the muffled FFFFRRRRRRTTTTT that sounded beneath her.
“Oh! BUUUUUUURRRRRRRRPPPPPPPP!” Asia gasped at the sudden impact, belching afterward. She had been in the middle of chewing her way through a gargantuan meat bun when the button struck her. The fog over her eyes slightly dissipated, and she blinked. “Does something feel off to you girls?” She asked and almost came out of her daze before Akeno guided the meat bun back to her lips.
“Don’t be silly, we can’t let anything go to waste. Eat now, think later.” Akeno cooed and patted Asia on the head before she resumed her feast.
Asia slowly nibbled a few bites before her eyes glazed over again. An additional bite and few seconds saw her eyes further fog until they swirled like pinwheels. Her bites became more rapid, and her body continued to swell into a spherical blimp. Whereas Akeno and Rias quickly developed larger breasts along with their rounded bodies, Asia looked slightly more pear-shaped. Her breasts did well, but it was hardly anything compared to her lower body. Her hips stretched outward in both directions, while her butt thickened and rounded behind her. The more she ate, the more spherical her middle became. This included a broad arching curve that started beneath her chest. This curved outward in front of her, behind her, and on both sides. The curve was more pronounced in her front, giving her a giant belly. The curves gradually tucked inward to her lower body. Still, this made her appear as if she were more inflated than fat.
Asia’s belly rumbled like a cauldron, but her mouth was still full of food. Built up gas had nowhere else to go but her rear. FFFFFRRRRRRTTTTT!!! Asia failed to notice the sound. Her ear was filled with the sound of her chewing. She didn’t notice the second and third gaseous outburst as she focused solely on her food.
Koneko almost appeared the same, but that was only because her chest didn’t increase much at all. The curve of her spherical body practically began from her collarbones. Her chest curved in sync with her belly, but she still appeared as flat as usual. That hardly bothered Koneko. In the back of her mind, she just took this as less of an obstacle to stuff her face. The swelling even started right below her arms. It almost looked like her head was attached to a giant sphere.
Which wasn’t far from the truth.
Again, Koneko hardly cared. Hypnosis or not, she focused on the food and only the food. She didn’t pay attention to how her body bloated and rounded. Nor did she acknowledge the creaks and groans that sounded. Those noises made her seem more like a blimp. Squeaking stretches and groans one would hear when they rubbed a filled balloon.
“HOOOOUUUUUURRRRRRRPPPPPP!” Koneko belched without shame. She lazily licked some crumbs and bits of frosting from the corner of her mouth. After that, she moved to licking her fingers clean. Every motion radiated the image of a lazy, fat cat. Her eyes had transitioned to the swirling voids like Asia. However, the twirling was slow. “I can’t reach the food.” She grumbled.
Koneko was, as of ten minutes ago, petite and compact. That was the generous way of calling her short. Being short came with short arms. Her form might be rounded and full, but her arms had remained the same. They were touched with flab, gently thickened from shoulder to wrist, but they couldn’t reach around her bulk. There was no chest in her way. However, there was a rounded belly that reached beyond her hands.
Bellavore noticed this and nearly wept. She remained cloaked, but she approached the cart. She grabbed an enormous eclair and ferried it to Koneko. The girls might have been under her hypnosis, but it could still be broken. That’s why she was as gentle as possible. She didn’t squeeze the eclair, so as not to stain her fingers with chocolate, squish the dough, or eject the ungodly amount of cream inside the pastry.
Koneko blinked.
Koneko then grabbed the eclair. ‘Whatever,’ was all the thought she devoted to a floating eclair. Why question it when she could eat it? The creamy filling exploded into her mouth, but she sucked it down with ease. A small part of her thought Issei might have a wise crack for this. The majority of her mind was absorbed with how delicious her food was. The swirling effect in her eyes ramped up to full speed. She was entirely in Bellavore’s clutches.
Koneko crammed the rest of the eclair down her throat, and her belly lurched forward. It rounded further, taking up her entire torso. Her breasts failed to expand, but they were curved to match her expanded abdomen. More floating desserts offered themselves to the girl. She devoured them as casually as most people breathed.
Each indulgence wrought immediate effects. Koneko’s body bulged out further and rounder in near-instant surges. The growth was so rapid that it produced sound. Fwmp! Bwonph! Pumff! Koneko ignored the sounds in favor of eating. As long as the food floated to her, she didn’t have to worry about anything but eating it.
However, the rapid consumption caused Koneko’s stomach to grumble. Each bite was eventually interrupted by loud UUUUURRRRRRRPPPPPPPSSSSS and the occasional trumpeting PFFFFFRRRRTTTT.
Bellavore watched her bloated beauties with heart-shaped pupils. It was painful to just watch. She tensed and relaxed her hands, flexed her fingers, and struggled to keep still. She was invisible, but that didn’t mean she didn’t have to be quiet. She had to bite her lip just to suppress a joyful squeal.
It was a good thing, because the door suddenly swung open.
Sona Sitri stormed into the room, panting and lightly soaked in sweat. “Rias! There’s a rogue demon on the loose! Whatever you do, don’t-“ She stopped and blinked. Her eyes poured over the four rounded demons in front of her. “It seems I’m too late.”
While late, Sona’s entrance had an impact. The loud SLAM from the door had startled the girls. Their eyes cleared, the hypnotic spell dissipated, and they were suddenly aware of their bloated bodies.
“O-oh my goodness!” Asia squeaked, her cheeks turning bright pink. She reached out and poked at her body. Her hands sank into the soft, bloated state of her body. Lithe fingers slid over smooth curves until puffy arms could bend no further. This prodding confirmed that this was Asia’s body. Not a puffy suit nor an illusion. The memories of her gluttonous antics flooded her consciousness. “I can’t believe I lost control of myself like that. I’m no better than a greedy piggy!”
Asia’s pouting face and choice of words made her seem cute despite the shocking circumstances.
“Ugh, I can’t get up!” Koneko tried to tilt her body or shift her position. Neither was accomplished. All she could do was jiggle in place. Her arms and legs were much shorter than the other girls, but her body was almost just as round. She couldn’t reach out to grab anything, and her legs were buried under her bloated body.
Koneko’s face contorted into frustration and embarrassment. Part of her thought that she couldn’t let Issei see her like this. There’s no way he’d keep frank comments to himself, and she couldn’t hit him in response. Her embarrassment rose when her struggles disturbed the gas within her. More burps flew past her lips, and farts were muffled against the couch cushions. Still, the sound resonated in her ears.
“Someone’s gonna pay big time!” Koneko snarled as she doubled her efforts to stand.
Akeno didn’t react immediately. Her cheeks flushed slightly, but her expression was taciturn. She focused on her last coherent memory. She stepped into the kitchen, and the food was already there. “Ara, it seems I fell right into a trap…that being said, I wonder what Issei will think of these!” Akeno giggled as she grabbed two handfuls of her breasts.
Akeno was pleased at how soft and voluptuous she was. She had always possessed a prodigious bust, but the increased size and shape were appreciated. Her nimble fingers continued to test and prod the plushness. She’d need time to acclimate to the increased size, but it would be manageable with time.
The belly was another issue, though. Akeno slid one hand to her stomach. She pursed her lips. It was soft, yes, but the size was conflicting. Akeno had liked her slim figure, and she didn’t appreciate being hypnotized into ruining that. “I’m all for feminine curves, but this body is just one giant curve.”
Akeno managed to get to her feet. Her belly knocked the cart and its remaining food over. “How am I going to cook like this? I can hardly see in front of me!” The slightest step caused Akeno to bump into something. The tipped-over cart, Asia, and Rias. Truly, she felt like a massive bouncy ball. Every bump caused her to stumble as springy fat pushed back on every obstacle.
She wouldn’t mention the mounting pressure in her stomach. That would be unladylike~
“What the hell?!” Rias cried out, giving the most shocked reaction of all. She stretched her arms as far as they’d go and groped around her body. Everything was soft to the touch, quickly sprang back to place after squished, and boasted incredible weight. Rias was used to her breasts having this soft, springy, and even heavy property. It shouldn’t be spread across her entire body, though! “The last thing I remember was Akeno bringing all that food in. Don’t tell me I fell for a curse so easily!”
Rias tried to get to her feet, but it was absurdly awkward. She usually carried herself with grace, but now she had to shift and hobble to get off the couch. Her balance was entirely out of whack, too. She rose to her feet for a second only to fall back. This caused the couch to break, and she rolled onto her back.
Koneko and Asia were jostled by the broken couch. They rolled into each other and bounced off of Rias.
Rias groaned from the impact. Her stomach quickly began to groan louder. She tensed, knowing what was about to happen. She opened her mouth and let out a loud BUUUUURRRRRRRPPPPP, which was instantly followed by a trumpeting FFFFFRRRRRRRRBBBBBBBTTTTT!
“This is mortifying…” Rias hid her face in her hands. The embarrassment was short-lived, though. It was quickly overpowered by anger. Rias felt her magical energy surge like an erupting volcano. She threw herself to her feet, hands clenched. “Sona, tell me everything you know about this rogue demon!”
Bellavore had tucked herself into the corner. ‘Eheh…it seems I’m the one who bit off more than I could chew…she’s scary.’ She thought and swallowed nervously. Oh well, she could make a quick break for it, rally, and strike again. A little hiccup was no reason to abandon her game. She slowly snuck toward the window. She kept herself tucked right against the wall, not wanting to bump into any of the clumsy food blimps.
Sona approached Rias. “I’ll spare you a long story. The Demoness Bellavore uses invisibility to sneak up and hypnotize her victims. She then forces them to stuff themselves. First, you bloat like a balloon, but eventually, you’ll end up a massive blob.” She reached into a bag and pulled out a scroll. “If she’s around, then this will reveal her.”
‘Shit.’ Bellavore cursed and started to sweat.
“Well, if you’re going to reveal me, then let me save you the trouble!” Bellavore exclaimed and dispelled her invisibility. She leaped into the air and cackled maniacally. “Yes, it is I! The most grandiose demoness of all time, Lady Bellavore!” She boasted and basked in the stares of her would-be toys.
Bellavore dropped to the floor as a fireball exploded in the space she had just occupied. All of her boastfulness was gone as she looked at Rias glowering at her. “I uh…ahah…ha, yes. Y-you were all so easy to fatten up!” She tried to act more confident as the others readied their own magic. “BUT I AM NOT FOILED! Yes, I shall spread chaos and calories…elsewhere…bye!”
Bellavore leaped out of an open window and unfurled her wings. She flew as fast as she could. Bellavore was a stuffer, not a fighter!
Rias dove for the window. She was fully intent on chasing Bellavore and burning her to ash. However, the window frame had a different opinion.
It was the inverse of trying to jam a square peg into a round hole, but Rias’s size made it just as impossible. Her head and arms passed through. She somehow managed to squeeze almost half of her body out as well! Yet, the rounded point of her body became wedged tightly.
“What? Oh, come on!” Rias reached for the window. She wanted to try to push herself the rest of the way, but her arms were too short. She kicked and shifted, but she couldn’t get through.
This erratic movement stirred Rias’s tummy. She blushed as a loud FRRRRRTTTTTTTT escaped her. Even with the window blocked, she heard it. “Someone push me or something! We can’t let Bellavore get away!”
“I’m on it!” Asia waddled over as quickly as she could. It was more of an awkward shuffle, and she let out a constant stream of toots as she went. By the time she reached Rias, she realized her arms weren’t long enough to do much help. “Um…if I lean forward, then I’ll fall. What if I-“ Asia thrust her belly forward. It bumped Rias’s rounded lower half. This managed to nudge the stuck demon a single inch.
It also caused Rias to release more gaseous outbursts.
Akeno came to Rias’s side and giggled. “Wow, look at these!” Akeno was able to widen her stance and lean forward. With her breasts being pushed against Rias, she had more than enough stability. Akeno abused that stability and reached out to squeeze Rias’s butt. She groped whopping handfuls of one bubbly butt cheek. “I’m certain Issei would like to play with these. Ooh, Rias, you naughty girl!” She raised her hand and roughly spanked Rias.
“EE-UUUUUURRRRRRRPPPPPPP!” Rias squeaked in surprise, but the sound turned into a long burp. “Akeno, knock it off! If you aren’t going to help, then go away!”
“Ugh, you guys are ridiculous!” Koneko grumbled and took a few steps back. She knew there was no way for her to run. Instead, she threw her weight forward and rolled. She managed to bowl toward the group.
Koneko’s body slammed into Asia with incredible force. Koneko was sent rolling in the direction she came from, but Asia had been squished between the cat girl and Rias. She shrieked in surprise, let out a trumpeting PBBBBBFFFFFFTTTTT, and she was sent toward the ceiling.
Rias?
Rias was nudged slightly forward. She was still stuck.
“BUUUUURRRRRRPPPPP damn that demon! I swear I’ll pay her BBBRRRRRTTTTT back!” Rias attempted to slump but only managed to let her arms dangle.
Sona had watched all of this. Truly, she felt embarrassed. “I’ll pay for the damages but…” She waved her hand and destroyed the wall of the Occult Research Club. This freed Rias, who flew off, looking like an escaped parade float.
“Thank you, Sona~” Akeno waved before she entered the chase, quickly joined by Asia and Koneko.
“Wait! I have more to tell you!” Sona took to the skies, desperate to catch up.
Meanwhile, Bellavore had slowed. She continued to fly, confident that she had lost any potential pursuers. “Phew, that was closer than I’d like.” She shrugged and giggled. “Doesn’t matter! I’ll get those girls back later! I can unwind and play with those angel girls heheh wait why is it cloudy all of a sudden?”
Bellavore barely managed to dodge a bolt of lightning from the sky. She looked up and saw dark clouds that pulsed with energy before they discharged more powerful bolts.
“Wholly moly!” Bellavore gasped and quickly dodged the barrage. Once clear, she looked back to see Akeno with a broad smile…and sinister eyes. “Uh oh.” Rias, Koneko, and Asia were all with her, too. The girls had grouped up and seemed ready to dish out their payback.
Bellavore couldn’t outrun them, so she would use her ace in the hole!
“I surrender!” Bellavore halted in midair, hands raised. “I’m so sorry, I’ll undo my spell, and I swear I’ll NEVER do it again! Please don’t exorcize me!”
Rias and Akeno managed to stop on a dime. Asia, however, was clumsy. She bumped into Koneko, and the two tumbled through the air. It was almost like an old comedy sketch the way they tumbled and collided, burping and farting as they did.
Rias ignored that and flew slightly forward. “I think that’d be letting you off too easily.” She grinned, and the corner of one eye twitched.
“I have to agree! Please, make it a little fun for us~” Akeno clenched one fist from which lightening began to crackle.
Bellavore gulped. “Fun? Eheh…yeah, I can make it fun. Ever heard of hide and seek?” She smiled before her body disappeared into a puff of smoke.
The fog quickly dispersed, and in its place were multiple imp-like beings. Each looked different, but all shared two traits.
Red skin and pink hair.
Bellavore had been replaced by pint-sized caricatures of herself. One flew to the front, her hair trimmed down to her shoulders. “We’ll hide, and YOU SEEK!” She giggled and zoomed off, easily five times as fast as Bellavore had been.
The other imps offered small waves before they too darted in different directions.
This was also when Sona managed to arrive. “Huff huff…Too late. I wanted to warn that members of Bellavore’s family can split off. The scroll I had was meant to prevent that.” Sona sighed and wiped sweat from her forehead.
“What should we do now?” Asia asked, nervously rubbing her belly.
Sona reached into her bag and distributed scrolls to the others. “These are forced teleportation spells. If you use them on the imps, they’ll be sent to my household. Right into a cage prepared to hold Bellavore. We should split up before they cause too much damage.” Sona’s expression hardened. “We aren’t the only people she can target after all.”
The girls exchanged glances, and then they flew in different directions.
Bellavore wanted a game of hide and seek, and the girls couldn’t help but give in.
TO BE CONTINUED
