fat!

undertum!!!

[the-boons]

Here you are @dunkybritscuits!  A more Stuffing based fic, but I feel it is good, reguardless!

—————————————

Sans had just gotten off his shift after a long work at his hot dog stand, trying to go look around the majority of Hotland, seeing as he hadn’t been given the proper time to go around and see what was around. Besides, Mettaton’s hotel was probably more than enough of what he had seen. He hadn’t really gone through the rest of Hotlands, so Sans took it upon himself to slowly trudge through the hottest place in the Underground. That proved to be something of a mistake, already. He was  used to the cold, frigid chills of Snowdin, and the quiet, just right dampness of Waterfall. Hotland was a completely different type, so when he was slowly walking along to explore around there, he was a sweaty, sweaty skeleton, it all dripping down to the ground and his clothes getting quite damp from magical perspiration. You could make a slip and slide from how much water was being dripped down, and he was almost at his limit, until he entered a small, dark cave. As soon as he entered, he could feel the searing heat from outside slowly evaporate, leaving with a slightly warmer than Waterfall, but still very nicely temperature room.

Having not seen this cave before, he slowly walked forward, seeing that it’s rather dark and mysterious. As he slowly walked forward, he felt his leg go into something kinda..sticky. With it being so dark, he couldn’t make out what it was. Only that moving his legs were slightly hard. Shrugging, he started to do that, moving forward slowly, only to see it was getting harder and harder to move his legs, and after moving in farther, his legs were completely trapped. He couldn’t move at all. After hearing some scuttling, he could hear something slowly drop on down…and he could see some white, shimmering webs slowly come on down. At this moment, Sans could realise what this was. A spider cave. He had gotten himself stuck from not realising that he was in webs. Well, shit. Seeing as he really couldn’t move, he just slowly craned his skull around as something larger than just the base spiders came around, as the smaller ones slowly started to go this way and that, making a big web, as someone slowly dropped down onto it. A much larger spider, holding that of two teacups in her half a dozen hands. She slowly walked over, able to see perfectly in the darkness. “Oh ho hoo! Who’s this that had just gotten caught in my web? I see a skeleton, draped in a blue hoodie!” “Well, don’t worry, I’m Bone to be wild. Handle with care.” Muffet had giggled at the pun, already seeing interest in the skeleton. She had then started to examine him, going this way and that. Along with a decently plush stomach, she could also see some of that wonderfull, wonderfull Gold he had been storing up for the tab for Grilby. She could see this, and she could already see how she could con him out of his money. She giggled, and a spider almost instantly dropped with one of her best pastries she could ask for. “Would you like a taste of one of my pastries. It is a sample of the stuff I sell around here, and you will most certainly enjoy them. Huhuhu~” Sans looked at the pastry, slowly rubbing his chin. It was a sample of what she had in store. It would be rude to deny her something like this, and it’s very much free. He shrugged, answering: “Since I’m rather Gum to you, but I’m rather stuck at the moment. Since I got nothing to do, I guess I’ll Leg around and have one.” “Wonderfull. Enjoy the pastry~” She slowly then handed him the pastry, slowly pushing it into his mouth as he finished talking up and she said her own, it slowly going into his jaw. He accepted it, and slowly started to chew it, and his pupils shrunk. It was fantastic! He started to chew on it, swallowing it with a merryfull swallow. Muffet however, Ufufufued again, and slowly got another one, pushing it into his mouth. “Here, have another one~” “Well, Tibi- Hmph! Mmmm~” He was going to protest her putting another pastry into his jaw, but then he actually tasted the thing. Almost submissively, he started to chew on the second pastry, it also going into the swirling mass. She put one in again, this time with some spider into it. He slowly chewed, and despite the spider being inside there, it only added to the flavor. He had swallowed it, the poor spider going into the rest. His stomach was no longer hungry, but that didn’t matter, as Muffet put more in there. 8 pastries down, and Sans was starting to get full. His normally pretty standard and slightly pushing out ecto-tum had slowly been starting to push out after the 4th pastry, him starting to feel a slight fullness, that feeling to stop eating coming to him. A burp had also unlodged itself from his throat, and his gut gurgling silently, pushing out very slightly from his slowly shrinking shirt, unable to keep it at bay anymore. “Uuurp! excuse me. These were pretty good, but i must be going.” “Oh, can’t you stay for anymore? I think you can let yourself go a bit~” And a 9th pastry went through his jaw, and Sans chewed on it, despite himself. He knew he was full, but there was some kind of allure, some kind of reason he couldn’t leave. He HAD to keep on eating, and so, he did. Swallowing this one, another pastry had taken it’s place. And after that, another. Sans was starting to bloat out slightly more from each of these, his gut expanding and becoming more full than before. He was starting to feel that…Fullness, that pain when you’ve stuffed yourself and your feeling very full. After a whole dozen, he was feeling ready to stop. Muffet however, wasn’t done yet. She had put yet another one in his mouth, and despite the slight bits of pain, he still chewed the pastries. Muffet had added an addictive little flavor to it, so Sans would eat as much as he was fed. And she continued to stuff pastries in his mouth, Sans was holding his gut, as every single one that had been eaten added on to the growing discomfort in his belly. Not to mention,  he’d been standing so long, his feet where going to give way.

Once she had had him eat a final pastry of hers, Sans’s legs gave out, and with a small moan of pain, landed on his knees and legs, them both being stuck into the webs. He couldn’t move this way or that, and landing so harshly made him burp. He didn’t really have the energy to talk, eating 1 ½ dozen confections had left him nearly in a food coma. Muffet saw that he was near passing out, she had pulled out some spider cider, it going down his throat willingly, even if it expanded his gut to extreme stuffing. It felt like someone was nearly splitting his belly in half, and after finishing, it looked ready to burst, prime with Muffet’s handiwork.

She giggle and slowly ducked down to his back pocket, pulling out literally thousands of gold out of there, in plenty of money, to which she took back herself, putting it with the rest of her cash. “Uhuhuhu~ It seems you’ve been eating past the first one for actual money~ Don’t worry about the rest of it, I’ll make sure you’ll be here until you can eat the money’s worth of food you have payed for. I’m a very fair person, after all~ Enjoy the stay~” And gently taking her leave, Sans fell into a deep sleep. He was going to be here a while, and Muffet was going to make sure he ate everything he could until he had gotten his worth out of his cash

[my-undertum]

😂

[undertumtales]

Chili Fries Go Straight To Your Thighs

Undertum, Mild Smut, Sansby Stuffing, Messy, Force-Feeding Eating Challenge, Weight Gain, Belly Kink, Belly Rubs

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[my-undertum]

Whoh!

[undertumtales]

Burgers & Fries, Oh My

Undertum, Solo Sans Stuffing, Messy eating, Belly Kink Belly Rubs, Ecto belly, Slice of Life

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[my-undertum]

Soi cool

[undertumtales]

Let Them Eat Cake

Undertum, Mild Smut, Kink Shaming Fat Shaming, Hurt/Comfort Ecto-Tongue, Ecto-belly Belly Kink, Slice of Life, Gender-Neutral Pronouns

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[my-undertum]

Cool

[darnathedog-deactivated20170817]

[my-undertum]

Yep

[undertumtastic]

'Dog Stuffing

I just now wrote this up in the span of a couple of hours, so I apologize if some of the wording is a bit off or if parts of it aren’t embellished enough. I’m still not 100% confident to post here again yet, but I’m working to overcome that anxiety. And hopefully someone will get some enjoyment or something out of this. 

-Earth Gwee

Another day began in the underground. People went about their daily lives, getting up in the morning, bathing, eating breakfast, opening up shop or visiting friends… Just the same as it had been for years down here. Snowdin was no exception. 

Papyrus always began his days very early, before anyone else woke up. He was filled so much with a constant infectious energy it was impossible for him to sleep for more than a couple hours, if that. Although, it wasn’t quite infectious enough for Sans, who had had trouble even waking up for sentry duty. As usual. Still, he relied on his taller brother’s endless supply of encouragement laced, with annoyance at Sans’s laziness, to keep him going. He knew Papyrus just wanted him to succeed in life as much as he was, and Sans more than appreciated it. But old habits die hard.

Sans reflected on that for a brief moment on his way to his sentry station in the forest, taking an idle glance down the tree-flanked pathway leading to big, locked stone door to the ruins. He would have to visit the old lady behind it again sometime during one of his legally-required breaks. He chuckled to himself, running over the new jokes he had in his repertoire. “She’s gonna love that one,” he said, taking a seat behind the counter of his station. He breathed out a long sigh and just sat back in his chair. He knew no humans would be showing up today; they never do, but he waited anyway. 

It was only a minute of waiting though, because after that minute Sans had a rather peckish urge. He only had time for a small breakfast today and it had been a while since he last ate. “Hm. Wonder if…” He searched around behind the counter for his stash of hotdogs and hotcats but found only stray bottles of ketchup, mustard, and relish, all of them nearly empty. “Damn…" 

Glluuurrrrglglblrgll…

He stood up straight in reaction to the noise and instinctively glanced down at his slightly distended gut. He placed his hands around it, feeling it gurgle in empty protest. Seems he was quite a deal more than just peckish. He was full on hungry. Powerfully hungry. Hungry enough to eat ten or more ‘dogs. But his stash wasn’t here. It was all the way in Hotland. He would complain as much as his magic stomach currently was, but he shrugged. "No worries. I know a shortcut.” He walked around the support post of his sentry station and disappeared in an instant, ending up right next to his station in Hotland with perfect ease. “Just like walking through a door.”

The atmosphere and landscape here were a stark contrast to Snowdin. Though he didn’t feel any temperature difference, being a skeleton, he could certainly imagine how stiflingly warm it was here. The station stood near a precarious cliff with a sheer drop down into the glowing, bubbling lava below. He’d hate to be the unlucky bastard who fell in there. Not that many people did, but still.

rmmbmglgl gwooorrp

He grabbed his tummy when it rumbled again. “Jeez, pal,” he chuckled and patted his belly. “You’re bubbling more than the lava." 

mrrrrrglrl

He ignored that and knelt down behind the station to find exactly what he’d been looking for: his stash of hot dogs. About a hundred of them! Plus the appropriate condiments of ketchup, mustard, and a little bit of relish. Even his condiment choices traveled far. After taking his seat behind the counter, he grabbed a 'dog, placed it in a bun, and topped it off with a thick line of ketchup. "All righty then. Let’s dig in, shall we?" 

And dig in he did. Though his teeth never opened, he was able to take a large bite of the 'dog, at least half of it, before chewing and swallowing. It took just a few seconds for Sans to completely consume the savory, water sausage confection. Just for the hell of it, he lifted his shirt and gazed down at his tummy, watching the chewed up pieces of magic food drift down and swirl around inside. 

His belly appeared a light cyan blue, reminiscent of the blue magic he usually dealt with, with a consistency that matched that of gelatin. It was firm to the touch but pliable like flesh. Inside was like a thick, watery substance, translucent. His spine could easily be seen behind it. It functioned like a normal, fleshy stomach would, just one big stomach-like organ. Sans had created this belly out of his own magic a while back as an experiment and he hadn’t gotten rid of it since. Despite the rest of him being nothing but bone, his magic belly was essentially an extension, an expression, of his own body. Because of that, even if he wanted to get rid of it, it wouldn’t be easy. He didn’t need it necessarily, but it was interesting, if a bit fun, to keep around.

gurrglglglrrrrmmmmlgh

His tummy gurgled strongly a second after the first bit of food entered it. It wasn’t nearly enough to curb that powerful hunger of his. So, without much thought, he went for more 'dogs. Each new one was lathered with ketchup, some with mustard, a few with a combination of the two or all three. He was in complete and total bliss right now, just filling his hungry belly, savoring the sweet taste of each 'dog that touched his teeth. The world around him mattered little. The only thing that mattered was curbing his huge appetite. He felt each and every bite hit his stomach like a stone in small pool of water. Little by little, the magic mass filled with its contents, becoming more opaque and obscuring his spine. 

Sans stopped for a moment to breathe and assess the damage. He’d already eaten a quarter of his stash, and he was still hungry. This hunger must have been insanely more powerful than he’d initially thought. He glanced down at his belly. Streaks of light and dark consumed magic danced lazily inside his slowly growing dome. It emitted very faint burbles and groans as it just barely began the process of digestion. He felt a strong bubble rise up to his throat and burst out in a loud hiccup and a belch. He exhaled and gave his belly a gentle pat. Yet he did not feel full. Not even close. 

More and more he ate. In about a half hour’s time, he had gotten down to half of his 'dog stash. He ran out of ketchup and had to resort to mustard and relish, which were less desirable but still doable as taste enhancers. Sans just kept munching and chewing and swallowing without much sign of slowing down. More and more his tummy rounded out until it peaked out from under his shirt, exposing its glowing self. Once in a while, he would rip a hiccup or a burp, which only increased in frequency as he ate. He sat down behind the counter, on the rough ground next to his slowly shrinking stash. His belly rested on his femurs as a big, gurgling, glowing blob of magic. 

This was the downside to this magic belly of his, the "payment,” if you will. Keeping it around meant a higher magic consumption requirement than normal, which meant a higher demand for food. But, as per usual, Sans was too lazy to try and get rid of this belly and just enjoyed the food it demanded, which wasn’t always a good thing. It led to him moving more slowly than without the belly, much to the dismay of Papyrus who had to put up with his brother’s increased laziness. As much as Papyrus nagged, he nagged at Sans out of worry for his well being. Not only did it effect Papyrus, it effected Sans more deeply. This belly was draining him of necessary energy, energy he could be saving for if a potentially dangerous human were to fall into the underground. It was a vicious cycle that Sans had chosen to keep himself in. He knew he needed to fix this problem somehow, maybe come to a compromise of keeping his belly without the risks, but he never got around to it. He didn’t want to. Which only worried his brother even more.

In this moment, he just focused on what made him happy, forgetting about the ramifications that would come from this. He had eaten all the 'dogs that made up seventy percent of his stash. Onto the hot cats. His condiments were running out. The mustard ran out. All that was left was the relish. Now he was slowing down. He needed to stop and breathe. “Urrrp!” he loudly belched. “Ugh… Man… Getting a bit bloated–hic!” His belly had bulged out so much now that the shirt had ridden up to its crest, a tightening, unhappy, bubbling mess inside. After eating ninety percent of his total stash, he finally felt achy. He moaned to himself, rubbing his exposed, stuffed middle in a circular fashion, trying to ease the tension and aid in the painful digestion process. 

Ninety-five percent down…

Ninety-seven percent down…

Ninety-eight…

He gave up at the last one. He slumped to the ground, face up in a heap, letting out a loud groan. After consuming ninety-nine hotdogs and hotcats, the skeleton finally felt a shred of regret. He had never eaten this sheer of an amount before, enough for it to start backfiring on him. Sans had rendered himself immobile. He could only feel that aching pain in his engorged gut. He only heard it burbling away, working laboriously at all that consumed magic. “Now I know… what a stuffed turkey feels like… Urp!”

Sans couldn’t even doze the food away. He just lay there in agony. But after a little while, he heard firm footfalls approaching him. He knew exactly whose feet those were and he cringed a little.

“Sans? Sans! Sans, where are you?! Why aren’t you at your post in Snowdin Forest?!” Papyrus leaned over the counter. His eyesockets popped wide at the sight of his brother before them. “Sans?!" 

"Hey, Papyrus…” Sans waved weakly and hiccupped.

“What in the world happened? What did you do to yourself this time!”

“Uh…well…” Sans’s cheekbones turned a slight shade of pink. He tried and failed to avoid his taller brother’s gaze. “I got hungry.”

Papyrus tilted his brow. “You got hungry.”

“Yeah. S'all I got. I’m, uh, kinda in pain here, bro." 

"Of course, you’re in pain! You’ve engorged yourself far beyond your limit! I knew you’d get yourself into trouble when you created that organ or yours!”

“Yeah… Hic!” He hated to admit it out loud, but Papyrus was right. “I don’t think I can even take one of my shortcuts.”

“You know this means I have to carry you home, don’t you?”

“Yeah… I know… I guess I’ve been too full of myself lately. Heh-heh. Ow.” He winced.

“Argh… Even in this state you still make terrible jokes…” Papyrus gave an exasperated sigh, walking around behind the station, and proceeded to lift up Sans from under the shoulders. He grunted profoundly from the effort.

“Nyeehhhh! I swear, Sans, you deliberately make yourself this lazy!”

“If it’s any consolation,” Sans replied rather calmly, holding his poor belly, “I don’t think I’ll be doing that again.”

“Nrrgh! Good!” Finally, Papyrus got a good hold on Sans and lifted the heavy skeleton into his arms. All that training with Undyne, plus his own natural strength, paid off. Too bad it involved taking his immobilized brother home. 

“Now then, let’s get out of here as quickly as possible. I don’t want to spend another minute on Conveyor Planet.“ He then jogged briskly down the path to the elevator that would take them down to the first level. 

In a minute, they arrived at the river dock and requested the River Person take them back to Snowdin. They had said nothing to each other the whole trip back. Sans could feel Papyrus’s embarrassment radiate off of him as his carried him down the main street. Some of the town residents stopped and stared, only making Papyrus feel more embarrassed. But it wasn’t embarrassment for himself, just concern that people would wrongfully judge Sans for being this monumentally lazy. He only wanted Sans to do better than his best self, and for him to squander that away to this extent was one of Papyrus’s biggest worries. Sans knew that, and he felt guilty for it. He probably wouldn’t change his ways completely, but if only to make his brother a little happier, he’d have to make a decision. 

At last, they were home. Papyrus somehow managed to open the door and push his way through with his shoulder while still carrying Sans. He gently placed Sans down on the sofa, allowing his belly enough room to lay out. The belly jiggled a little from this action, painfully sloshing about. Sans suppressed a groan and rubbed the bulbous mass. "Thanks, Papyrus…”

“You know I worry about you, Sans,” Papyrus replied in a firm but gentle tone. “I understand this organ you’ve made is a part of you, but you can’t pretend it doesn’t do some kind of damage. I worry that you’ll let it… overtake you! Or that you’ll… fall down! Or something!! I won’t ask you to go on a diet, but please, at the very least, promise me you’ll do something about it!!“

"You’re right, bro. And, uh… I’m real sorry for making you worry.” He took a deep breath in and sighed, resting a tired hand on the crest of his overly stuffed belly. “You know how I am with promises, but… I’ll see what I can do.”

“Thank you, thank you, thank you, Sans!” Papyrus rushed into a tight hug. “You don’t know how much that means to me!”

“Y-you’re welcome…” Sans choked. His stomach gurgled threateningly. “Uh, careful. I don’t feel so good, remember?”

“Oh! Sorry!” Papyrus immediately released his hold and withdrew. “I have an idea! Once you’re all better, we can go visit Undyne! Maybe she could help–!”

“Whoa, whoa, baby steps.”

“Hm, you’re right. She’s a bit too advanced for you. Maybe Doctor Alphys can devise something for you that would help! She’s very resourceful!”

Sans’s grin widened weekly. He chuckled softly as he lay back down to rest. In spite of his guilt for making his brother worry so much, Sans still felt eternally grateful to have him around. Dealing with this issue he had created for himself would be challenging, mostly impossible for Sans, but he at the very least would make the effort not to overly indulge that much again. In time. For now, he just listened to Papyrus drone on, finally able to slumber. He had a huge meal to sleep off.

-The End-

[my-undertum]

Cool

[undertumtastic]

Curiosity Killed the Pap

Hey there! So, Gwee has already made a nice fanfic which I absolutely loved but now it’s my turn. Mind you I’m not as good as she is but its eh. Anyways, I hope you guys enjoy.

~Anthony~

~This FanFiction Contains…~

Heavy Undertum

Magic Stuffing

Weight Gain

Immobility

~Characters~

Papyrus (Main Character)

Sans

Chrono

     Another day, another dollar down in the underground. Papyrus, as usual, have woken up earlier than the two skeletons, Sans and Chrono. He was cooking his famous spaghetti for breakfast, which they didn’t eat. Both of the smaller skeletons would always make an excuse that “They were late for a meeting” or “They had some work to do” yet when they came back, Both of their guts were as big as a beach ball and once they went up to their rooms, all you can hear is moaning and bellies growling. 

     papyrus heard the both of them come downstairs and had a face of curiosity. He quickly turned to them and stopped them. “STOP RIGHT THERE YOU TWO!” Chrono and Sans stopped right next to the door before slowly turning around with Chrono slowly saying, “Yeeeeeeesssss?” Papyrus crossed his arms and started to speak once again. “WHAT IS IT WITH YOU TWO AND GETTING FAT? WHY DO YOU LIKE IT SO MUCH?” Both of them sighed before Sans stepped in.”Hey bro, that’s just us. We just like it” Chrono crossed his arms and nodded. “Yeah. It feels warm and cushiony like. But, of course, you wouldn’t know that Papyrus.” Papyrus felt very intimidated by this. “HOW DARE YO-” Just when Papyrus was about to finish the sentence, the door shut as the two left.

     Papyrus was starting to feel down, sighing before turning off the stove and sitting on the couch. He continued to think about what they were doing. How big are they planning to get? How big do they wanna get? Why do they wanna get that big? These questions were racing around in his head before finally, he made up his mind. He was starting to get too curious not to know how it would feel like. He was going to get more spaghetti to stuff himself with before thinking and remembering that he had magic to use. He put on the lid of the pot to keep the spaghetti good and fresh before going back to the couch. “ALRIGHT…”  He took a deep breath”..LET’S DO THIS..” 

     Papyrus started to get nervous and hesitated a bit before slowly raising his hand, making a small glow on his hand appear, which was slowly growing. It only took a few seconds before a glow could be seen in his ecto belly. Papyrus was shock by this and stopped, blushing an intense orange. He was extremely nervous at this point before starting to grow a face of determination. “NO PAPYRUS! YOU CAN DO THIS. IF SANS AND CHRONO CAN DO IT THEN SO CAN YOU!”  Papyrus pulled up his hand once more before taking a deep breath. He started up the magic once more and let it grow inside of him. papyrus looked down at his slowly growing gut before starting to blush once more. His gut was starting to grow and grow, slowly forming flabs, rolls and all in all one large gut. Papyrus was starting to get nervous and tried to stop once more, but it was because of that nervousness that the magic didn’t let him stop. 

mmrrBBRRRbBmmggRbbllee

     It started to growl and gurgle extremely loudly, not showing any mercy as it just became louder and louder as his belly grew. papyrus got up, but he felt extremely heavy and felt like he was just about to fall back down again, which, unfortunately for him, happened. He fell down with a big WHUMP, and as his body impacted onto the floor, all of his fat started to jiggle and slosh around all over his body. He tried once again to get up, but all of his fat was pinning him down to a seating position. But before he could get any bigger, the magic stopped and left him panting, blushing and sweating.

     Papyrus was now probably the fattest person in all of Snowdin. With fat covering his entire body. No matter how much he tried, he just couldn’t get up. After a while of trying, he just sighed and stayed sitting there, covered in the orange ecto fat. But after a while of staying there, he actually starting to feel comfortable, as if he wanted ti stay there and never get up. He looked around at his ecto gel as a small smile slowly started to form on his face. He couldn’t,t help but to shake around a bit and make the fat jiggle, which made him giggle. It looks like Sans and Chrono was right. It did feel good. So papyrus just laid there and relaxed before slowly starting to fall asleep.

~A couple hours later~

     The door opened as Sans and Chrono, stuffed to the brim, came in, holding each other’s hand before looking at Papyrus in awe, causing them to freeze on the spot. They were both extremely shocked to see Papyrus, extremely fat, with his battle body next to him on the floor. Sans and Chrono looked at each other before looking back at Papyrus, who was starting to wake up.

     Papyrus yawned and opened his eyes, only to the two skeletons standing right in front of them, which made him blush hard. “AHH! O-OH MY GOSH.. I-I CAN EXPLAIN..” Chrono signaled him to stop, in which Papyrus obeyed. Chrono didn’t say anything but started to walk up to Papyrus and slowly laid down on his fat, getting as cozy as he possibly could. Sans was confused for a moment before shrugging and doing the same thing as Chrono did. papyrus blushed softly before sighing, looking at the two sleepy skeletons with a smile. It wasn’t long before Papyrus finally drifted to sleep alongside them. it looks like it did feel good to gain weight. Maybe it would be fun to join them next time on their little stuffing day. That would be pretty fun to do.

~I know, this fanfiction sucks. But thank you for reading~

[my-undertum]

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[tum-territory]

Sans eating frisk

Sans was looking forward to this day: Thanksgiving,a perfect day full of the best foods and best friends, and this time it’s on the surface…. This was Frisk’s and his second favorite holiday. She looked around ‘So how come he’s not here?’ She got worried, despite Thanksgiving requires work, Sans always makes an exception for certain holidays, this being one of them. He would love helping out and having a crowd to cringe at his horrible jokes, despite her and Toriel adore Sans’s sense of humor. Something had to be wrong.“Hey, I think I’m done with everything on my part and I’m kinda tired,can I relax a bit?” she asked Toriel“Oh yes, my child!” Toriel said with a smile “You were up all night helping me decorate and prepare most of the food, you were such a big help. I’ll see you at the feast….OH! And be sure when you come, dress nice. Nothing too fancy, but nice.” Frisk nodded, Papyrus was also helping along with Undyne, the tall skeleton turns “HEY HUMAN! CAN YOU DO ME A FAVOR AND CHECK ON SANS? HE’S PROBABLY ASLEEP UPSTAIRS OR BEING LAZY AS ALWAYS. TELL HIM IT’LL BE ABOUT 3 HOURS UNTIL THE FOOD IS READY AND GUESTS ARRIVE, I HOPE TO SEE HIM.”

 And with that, Frisk headed upstairs quietly. She wasn’t sure if Sans was asleep or not, but it’ll be rude to wake him….(despite he’s out like blown out conveniently shaped lamp every time he sleeps) She paused at his bedroom door, pressing her ear on it ‘Hmmm…. I don’t hear any snoring or any signs he’s sleep-’ An abrupt sound interrupted her thought, specifically, a growly roar.

*GRRRROOOOOOOOWWWWWWWWWWWWWWWWWAAAAAAAAR* “Sans?” She quickly pushed the door and walked in without thinking “Sans, what was-” Frisk immediately halted as her and Sans’s eyes met. He was sitting in curled up fashion, his face easily read pure pain. Something is wrong…. It was a moment of silence before Sans spoke up “Uhhh kid…nice of you to come but… s-sorry now isn’t the time- “ He gasped suddenly, curling up tighter as his face flushed a blue-ish hue. She got worried and ran to his side, Frisk never saw Sans in this level of agony and would do anything to help stop it. “Sans, come on, talk to me. We always talk about things…even about timelines. So please, tell me what’s wrong.” Sans looked up at her again, hesitating at first yet found the courage to try to talk. “I’m just-

*GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOORRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG*

….really beyond hungry….” Sans trailed off, blushing even bluer. Frisk can tell this wasn’t normal hunger. “When was the last time you ate…?” Sans let out a weak chuckle as he looked the other way for a moment “Well kiddo… it definitely wasn’t earlier today or yesterday at all…” She looked at him in shock, he hasn’t eaten a day and a quarter, to a normal monster it would be bad, but to a monster who is a glutton and ‘the weakest monster’…no wonder Sans is so uncomfortable. “Uh, kid? You okay?” he asked, raising a brow giving a smile “H-Hey, look, kid, I know this sounds unsettling to you, but I’m ok, I can hold out… so how long until the feast? 15 minutes? 30? An hour?” Frisk swallows the lump in her throat “…More like 3 hours…” Sans’s smile immediately disappears, both of you know he won’t last that long….

*RRROOOOOOOOOOOOOOOOOOOOOOOOOOOOUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUWWWWWWWWWWWWWWWOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOAAAAAAAAAAR*Both of you jumped as Sans wrapped his blue, empty, grumbling orb of a belly, wincing in pain as beads of sweat started forming on his forehead. “Urrgghh…s-sorry kid…” She couldn’t stand it, this can’t wait, he has to eat NOW. Frisk look around in his room but found nothing… she has grown desperate, she didn’t care what he need to eat, she just wanted him full enough to hold out…. or maybe who. “Sans, eat me.” Sans looked at her like she was crazy “Wait…what? Sorry, didn’t quite hear you correctly, can you repeat that…?”Frisk looked at him.., with pure determination “Sans….. eat me … at least until it’s time for the feast. It’ll help you wait it out.” Sans continues that questionable look on his face and was going to say no “Let me do this… just for you, Sans. I love you a lot and don’t like seeing you in pain. Please…” Frisk’s pleas with puppy eyes combo and his stomach’s vicious empty complaints tag teamed and won against his better judgment. “Hmmmm…..O-Okay…”

Using some magic he saved, he brought Frisk up near his mouth and started swallowing once she was in. He shivered, god she tasted so amazing….Sans hoped this won’t lead to any problems later, but pushed the thought aside as he continues swallowing, to her feet all the way to her head. He slowly beginning to feel full halfway through the process, but couldn’t stop until all of her was in his belly.For Frisk, she actually grew fascinated and love being a willing prey. She hasn’t experienced something this new since falling from Mt.Ebott and exploring the Underground. Frisk love adventure and trying something new, plus she and Sans are very excellent best friends, this is definitely worth the risk.

With one last swallow, Sans can feel Frisk overstuffing his belly… and boy he enjoys it, he sat in front of his bedroom door to make sure no one else will be able to come in, letting out some mighty burps. “ *BRRRRRAAWWP- Oh gosh excuse me….all the swallowing might’ve caused that. Hey Frisk, What is it like in there?” Frisk look, now inside of Sans’s magical belly, “It’s…. so beautiful…I wish I can stay here longer!” Sans was a little surprised at first, but chuckles, making Frisk bounce up and down a little in his belly. She smiled as she hears the happy rumblings of his belly echoing around her, he does sound so much better, but to be sure…”Hey Sans, do you feel better?” Sans nodded “I’m much better… but ya know…you really didn’t have to do this for me.” Frisk started thinking, only for a bit until she spoke up “Like I said Sans, I love you a lot and you’re my best friend, whether what happened to you was your fault or not, I’m just glad I made you're happy because that’s what truly matters to me.There was a long pause as a large smile slowly grew on Sans’s face “Gosh kid… you have no idea how thankful I am for you right now….”

[my-undertum]

Ummm ok?

[daddysgainingprincess-deactivat]

REBLOG if you're a weight gain blog. I want to follow you.

[my-undertum]

Ummm kinda but yeah

[galaxy-bellies]

An Archive of Our Own, a project of the Organization for Transformative Works

So, guess who decided to get off their ass and actually write a multi-chapter work for once?

—

TITLE: Huh. When did THAT get There?

VERSE: Undertale

SHIP: Grillby / Sans

CHAPTER COUNT: 1/12 completed

RATING: M for mature- no sexual content, but heavy feedism included

DESC:  Sans has been falling asleep at Grillby’s bar for a while now, it’s become so common that Grillby has begun inviting him instead of the accidental awkward night. Sans’s heavy eating habits and Grillby allowing him to sleep in and laze around even more than per usual suddenly becomes visible, and both of them want to see just how visible it can become.

[galaxy-bellies]

Chapter 2 has now been uploaded!

[my-undertum]

Whoh!

[galaxy-bellies]

An Archive of Our Own, a project of the Organization for Transformative Works

So, guess who decided to get off their ass and actually write a multi-chapter work for once?

—

TITLE: Huh. When did THAT get There?

VERSE: Undertale

SHIP: Grillby / Sans

CHAPTER COUNT: 1/12 completed

RATING: M for mature- no sexual content, but heavy feedism included

DESC:  Sans has been falling asleep at Grillby’s bar for a while now, it’s become so common that Grillby has begun inviting him instead of the accidental awkward night. Sans’s heavy eating habits and Grillby allowing him to sleep in and laze around even more than per usual suddenly becomes visible, and both of them want to see just how visible it can become.

[my-undertum]

So good

[cobaltdays-deactivated20210208]

Follower count equals gem. Tag your result!

[chubbyskeletons-deactivated2025]

The Confession

An Undertum Fic. Sans X Reader.

Contains stuffing, bloating, burping, tummy rubs

I wrote it in one sitting so it’s not that great but here it is anyway hhhAAA

~1,000 words

don’t like don’t read bro

Today was the day–the day you were going to tell Sans the truth.

Keep reading

[my-undertum]

Eeeehh!!!!

[pixelfreckle]

[my-undertum]

Yes!!!

[big-fellah-sins]

Can you draw undertum sans + water?

Ah, sorry hun, I don’t do much drawing these days! When I do it’s mostly like, gesture drawing stuff. I’ve got most of the undertum posts on here tagged though, if you wanna go scrolling through that!

[my-undertum]

Oh ok

[chubbyskeletons-deactivated2025]

The Confession

An Undertum Fic. Sans X Reader.

Contains stuffing, bloating, burping, tummy rubs

I wrote it in one sitting so it’s not that great but here it is anyway hhhAAA

~1,000 words

don’t like don’t read bro

Today was the day–the day you were going to tell Sans the truth.

Keep reading

[my-undertum]

Yay!

[cockyroaches]

Aaa!! It’s done ♥ Send me a character (or, if R2, a ship is more adequated!) and an expression, I’ll see what I can do!!! This should be fun ♥♥

[kinkmaster3000]

god these are so great? like im actually fucking dying i love you for making these

[tum-territory]

Thinking of doing some of these! Send some to both Lacey and I because we’re both up for doing some! But tell us who you want to to them lol

~Green~

[tum-territory]

I’ll do a few of these too!! :) -stuffedart

[my-undertum]

Ummm ok!