Twilight Sparkle Meets Underfell

by Newenglandee

Rating: teen
Tags: Twilight Sparkle, My Little Pony: Friendship is Magic, Other, Random, Crossover
Length: 1711

Twilight Sparkle awakes in Sans's house, but...it's not the Sans SHE knows. And he's...hungry. Contains Vore.

Twilight Sparkle has woken up in a familiar, yet unfamiliar place...with a familiar, yet unfamiliar skeleton there. And HUNGRY.

A vore gift story for a friend. Underfell is not my property. Enjoy!

Published 2016-08-07 17:30:01 UTC
Last updated 2016-08-07 17:30:01 UTC

Twilight Sparkle Meets Underfell

Author's Note

Trigger warning. This story DOES contain oral/soft vore and both a fatal, digestion ending AND non-digestion ending. I did this as a gift story for a friend, I hope you enjoy it too.

Twilight Sparkle Meets Underfell

“Thanks for letting me stay the night.” Twilight murmured, lying down on the couch as Sans chuckled, giving her a little nod. “I know it must be kinda strange for a pastel pony like myself to be down here.”

“ah. seen weirder.” Sans insisted with a shrug. “i live next to weirder.” He added. “tomorrow, we can getcha to my pal Alphys’s lab and work on maybe getting ya home. just, next time?” He tapped the side of his head with a bony digit. “be a bit more careful with your spells.”

“No more dimensional magics. Definitely.” Twilight reasoned with a nod, pulling the covers up over her and letting sleep sink into her as she softly snoozed…

…

…

…

…the purple-furred pony moaned, her hooves rubbing over her head as she struggled to try and stand up. Wait. What was going on? Her deep purple mane flopped low over her head as her deeper purple eyes, the unicorn glancing around. Something wasn’t right here. She stared in confusion at the house, and how different it now was as she stood up in the living room in Sans and Papyrus’s home. The carpeting, the walls, the painting, the couch, everything was different. Strange. ALIEN.

Once, the couch had been a nice little shade of green. Now it was an ugly red. The carpeting was no longer little waves of tealish/blue and faint purple, now they were nasty shades of dark grey and red. The walls, which had been a faint shade of deep purple were now pitch-black, and there was nothing homely or comforting about the place. Once, a pet rock had laid upon the nearby mahogany table. Now, instead, there was a crumbled pile on a plate with a note that read “I told you to feed your effing rock” on it.

Twilight the pony flinched at this. There was now physics book/joke book on a little stool by the couch anymore, instead there was a book that read “How to Serve Man”…which literally was a cookbook, she could tell, as she poured through it, cringing slightly. There HAD been a painting framed on the wall of a giant bone. Now it was a picture of what LOOKED like a much more cruel and pitiless Papyrus, who had dark black armor that was Underfell Sans, with red highlights and a cruel, fanged maw, his eyes glittering faintly red in their dark sockets. Scars ran over one eye as he stood up, tall and proud, clawed hands on his waist as he smirked, Twilight shuddering as she took a step away from it…

“hey.”

She stiffened, turning around, seeing a form she didn’t expect. It looked like Sans, and yet…it wasn’t. There was a single gold tooth in the skeleton’s fangy maw, a dark jacket that was black instead of blue, black shorts that had a single golden stripe running through it and black. White and red shoes were on the tubby skeleton’s feet, his fluffy hood more spiky in appearance, a burning red glimmer in one eye as he snapped his bony digits, Twilight hovering in the air.

“mind tellin’ me how you ended up in me and my bro’s home, my little pony?” He chuckled.

“S-Sans, you’re scaring me…” Twilight whimpered as Sans’s eyes widened.

“how do you know my name?” He growled, gritting his teeth a bit as he flicked a finger, forcing her towards the kitchen as he tilted his head a bit. “start talking.”

“Sans, it’s me. Twilight Sparkle. We’re friends, remember? You took me into your home cuz I messed up a-” She looked at him. “…you must be a different Sans.” She realized as she looked around the kitchen and at what was on the table. “…Sans would NEVER go for mayonnaise. He prefers ketchup.” She said with a stunned expression.

“KETCHUP? he likes KETCHUP?!” Underfell Sans remarked quietly. “ugh weird. so you’re from another dimension, huh? Well unfortunately for you, ya caught me at a bad, bad time.” He commented as he clapped his hands, Twilight having a little salt poured over her as he licked his lips with a deep red tongue. “and now you're in for a bad time. see…I’m real, real hungry. and unfortunately for you, my magic’s real good at nullifying other types so…well, y’all ain’t getting away.”

Twilight’s eyes shot open, wide with horror. He lifted her up over his head, easing her head-first down towards his open maw. Soon her head through his lips and he closed his jaws slightly, tongue tasting over her, passing over her face, his spit soaking into her skin and mane. Soon, the skeleton being took more of her into his mouth. Her chest popped through his lips, and she felt her head hit the back of his throat. She had one moment to prepare before he gulped, and sent her into the gullet. She expected it to be tight; crushingly so. Still, all things considered it wasn’t too bad. It was a little tight, but it was oddly comfortable. As the muscles moved around her, it almost felt like a full body massage. Granted, it was one she would never come back from, but still.

Underfell Sans worked more of her body into his mouth. His tongue was moving over her chest now, tasting her supple flesh and moaning slightly at the test. Soon the skeletal being's lips sealed around her waist, and he halted for a moment, licking at her belly. The tongue swirled around her belly, licking it, tasting every inch. EVIDENTLY Underfell Sans felt her tummy was quite tasty! But, soon, it was time to move on. Underfell Sans brought her stomach to the back of his gullet, and with a few sharp gulps, he swallowed it down. Soon her hips and butt were inside his mouth, and he was gulping those down as well. Then, only her legs were left. Those went quicker than anything else. He slurped them up, and then, he swallowed down her hoof, and she was gone.

As she felt the last of the fresh air being cut off from the world behind her, she also felt herself being pushed against a tight ring of muscle, which she immediately recognized as the entrance to the stomach. It was a tight fit, and she was almost afraid going through it. But as she came out on the other side, she found herself in a much larger chamber. As more of her was packed into it, she started to curl up inside, and found the walls very soft and comforting. She could probably get used to it.

As more and more of her slid down the throat, her chest were packed inside the gut, and then her belly. Soon her legs and feet entered, and she was fully inside. She was trapped now…and there was nothing she could do about it. But it was oddly comfortable, all things considered. She felt Underfell Sans’s hands touching the side of his belly, stroking the skin, and she pushed her own hooves into the belly walls to meet it.

“I don’t suppose you’d let me out?” She murmured.

“ah, I’m afraid not.” He remarked. “see, you’re just too tasty.” He told her. “now YOU get settled.” He said. “I’m gonna take a nap.”

Twilight gulped nervously, curling up in a fetal position, wrapping her arms around her legs as she took in a deep breath, feeling the skeletal being patting his stomach as he headed to the couch and laid down, sinking into the mattress and sighing softly.

FATAL

His stomach rumbled powerfully and Underfell Sans belched again. A thick and meaty burp sprayed a bit of spit and pinkish fur across the floor, a couple of wisps of rainbow hair settling on top. Sighing in delight, he patting his stomach as he rolled onto his back, looking up at the ceiling.

His skeletal claws tapped against his stuffed gut, feeling the delightfully rhythmic struggles of his pony prey trapped within. So nice. It was time for her to become one with him. He closed his eyes as his belly got to work, grinding her down. He sighed softly, his gut faintly wriggling as it worked over Twilight.

She’d be digested nicely, turning into a delicious, full meal of muscles and fat to add to his own wonderfulness. Soon enough, his skeletal belly would reduce its trapped and helpless contents to nothing more than slurry of delicious pony meat, the slow churning giving way to nothing but faint sloshing.

Soon, there was absolutely nothing left of Twilight Sparkle the Pony but new layers of belly fat, the way it was meant to be.

He hoped he’d get MORE tasty visitors popping up into his house.

NON-FATAL

The next morning, Twilight awoke to find herself tied up in the kitchen, Sans nonchalantly putting a bit of frosting over her, chuckling a bit. “Wh-what’s going on?” She asked fearfully.

“well, see, my brother’s kinda been grinding my gears. ol’ Sans needs a way to cheer him up, and I’m thinkin’…you might do the trick.” He told her. “since you’re so sweet, you’ll be perfect. a little pony cake. and if Pap LIKES you, we’re gonna be eatin’ you a lot, lot more often.” Underfell Sans told her with a licking of his lips, finishing the frosting he was bathing her in, licking it off his skeletal claws as he began putting sprinkles on top of her from a shaker.

“Wh-what?!” She exclaimed, Sans rolling his eyes. Good thing he’d tied her up so she couldn’t escape AND she was still being bathed in his magic to keep herself from using her OWN skills to escape. “G-Get off me!”

“yeeaaaaah…no.” Underfell Sans chuckled. “you best get comfy, cuz you’re gonna need to get used to being in our guts.” He laughed, lifting her up onto a giant plate and bringing her out of the kitchen and towards the living room. “hey! Bro! got a nice surprise for youuuu…”