#Swapfell!Papyrus | Explore Tumblr Posts and Blogs

sin-cognito · 2 months

Text

Rarepair New Year 2024 ch1: Sans/Slim/Blue, Soulmates AU

SFW

Wordcount: 2301

Blue didn't even need to wait for his alarm bell to ring, he was already awake. Or more precisely, he was still awake. One did not simply sleep on the eve of their wedding day.

READ ON AO3

Some of you already know but I participated in @kamari333's Rarepair New Year event again this year (THIS WAS SO MUCH FUN THANK YOU AGAIN FOR HOSTING IT!!! ♥♥♥) and I chose 31 ships (including some polys) and 31 tropes/themes/prompts, and let a dice decide of the combos. It was so much fun!!

Blue didn't even need to wait for his alarm bell to ring, he was already awake. Or more precisely, he was still awake. One did not simply sleep on the eve of their wedding day.

Except his very-soon-to-be husband, Sans. Of course.

He was softly snoring as Blue watched his sleepy face. Oh, he couldn't wait to be his husband! They had been engaged for quite a long time now, life and unexpected plans always getting in the way of the two soulmates' wedding. But finally, it was happening. Today!

Blue shuddered in happiness. He was going to marry his soulmate today! He still couldn't believe it.

They had quite the cliché beginning: they met during their first year of college and realized they were soulmates. They were both thankfully single at the time (stars bless, as Blue didn't know if he would've had the heart to break up from a relationship just to be with his soulmate, yet at the same time, duh, of course he'd have ditched anyone in a heartbeat to be with his soulmate!) so they immediately started dating and wow did it feel good to feel such profound love and care for someone, and to be loved and cared for back! Blue's brother had joked once that Blue and Sans were the ideal couple, regardless of their status of soulmates, and Blue couldn't agree more.

The small skeleton blew a kiss to his snoring lover and kicked the blankets off to get ready for a long day. He still had a good couple hours before all the gang would gather at his and Sans' place for the pre-wedding preparations, and he wanted to have a good start of the day with some treats from his favorite coffee shop. It was pricey and he couldn't afford it every other day, but dammit, today was his wedding day and he deserved a nice cup of coffee!!

As Blue dressed up, Sans stirred on the bed, sleepiness mudding his words into paste.

"bwue? wacha doin?" He ran his hand on Blue's side of the bed in an invitation to cuddle and go back to sleep.

"I'm just going to get some coffee, go back to sleep my love," Blue hushed him, and by the time he kissed Sans' brow, the skeleton was back to snoring.

Blue smiled gently before reluctantly tearing himself away from the bedroom. It took no time at all for him to reach the coffee shop, it was so early that traffic jams didn't exist yet, not when the sun was barely peeking above the horizon. Everything was calm, the town on the verge of waking up but not quite there yet.

The doorbell jingled as Blue stepped inside, inhaling the deliciously burning smell of morning coffee. He bounced happily to the counter, glancing at the menu above his skull while a barista came to take his order.

"HELLO YES, I WOULD LIKE… I would… Oh stars," Blue choked on his next words as he realized who was standing before him.

The barista's name tag read 'Slim'. He was a tall, really tall skeleton, even as he slouched a little, with a very handsome yet sharp face, his cheekbones seemingly cut from marble. Like a crack in porcelain, a scar ran from right above his left brow down to an artificial canine, giving him a sort of bad boy look that Blue couldn't deny he found very sexy, despite the tall skeleton's very obviously skittish nature.

But more important than that, Blue recognized the other, Slim, as his soulmate.

It downed on Blue that it meant he was double-mated. He had two soulmates.

It was a certainty that Sans was his soulmate, it wasn't a feeling that one could simply mistake for another.

But just as Sans was Blue's soulmate, it was true for Slim as well, the certainty of it swarming in Blue's SOUL.

"…your number. I would like your number," Blue blurted out as he took his new soulmate's hand, startling Slim.

"o-oh! oh, uhm, oh!"

Blue giggled as he watched Slim's face go through a whole range of emotions: surprise, elation, bashfulness, with a little bit of panic and anxiety on the side. The later two quickly disappeared as Blue ran a calming thumb across Slim's metacarpals.

"h-how about i get you something to drink first?" Slim ended up saying, and Blue nodded as he picked the coffee he wanted.

A couple minutes later, Slim was back with his drink, and invited Blue to sit down at the counter, where Slim could talk to him while continuing his work.

"nyeh, i never thought i'd meet my soulmate on my first day at my new job! i'm glad my bro forced me to go to the interview, i almost didn't, i was too nervous," Slim chuckled as he scrubbed some cups.

"Oh sweetie, I'm delighted I decided to wake up extra early today, so that I could meet you!" Blue happily chirped back, kicking his legs under the counter like a little kid. "Though I come here semi-regularly, so we might've met anyway, if a little later."

"maybe, but… the sooner the better," Slim replied and flashed Blue a smile that was nothing short of criminal. "anyway, uhm, here's my number. do you have anything planned today? i'm on the morning shift so i have all afternoon free, we could hang out or something?"

Oh, Blue so wanted to say yes and throw himself at Slim's arms and get to know him better, but… He did have a wedding to attend. And he needed to break the news to Slim, the sooner the better like he said.

"Well, actually… Slim, I must tell you that I'm apparently double-mated. I have a fiancé at home, and I'm about to marry him. Like, really ABOUT to marry him."

Blue glanced at Slim and while he was anxious about his soulmate's reaction, he was at least relieved that the other didn't show any sign of anger. Mating was usually a rather possessive ordeal and often could lead to toxic jealousy if the soulmates weren't openly communicating, even more so when one partner was double-mated, which was rare in the first place. Blue didn't know yet how Sans would even react to the news of his future husband discovering he was double-mated on the day of his wedding, and he wasn't sure he could take 2 upset soulmates in one day.

"oh, i see, well… uhm. this is… unexpected, to say the least. nyeh." Slim was visibly awkward, not knowing what to say, and Blue almost felt bad for dropping the news so suddenly on him. He knew it was the right call, that waiting (to be married) to let Slim know was a sure way to crush any hope of a healthy relationship with him. Still, he didn't enjoy being the cause of the anxiety spreading over Slim's face. "i would very much like to get to know you anyway, if that's something you think your… your other soulmate would be okay with."

Blue beamed at him reassuringly. He loved Sans from the bottom of his SOUL, but he was ready to put his foot down if his future husband forbid him to keep contact with Slim. If push comes to shove, there might not even be a 'future husband' until the issue was resolved.

"I will let him know about you and explain the situation. I promise it's going to be fine, I'll never let anyone tell me that I can't get to know my soulmate!!" Blue then squeezed Slim's hands once more, as he added with a soft voice that had Slim's cheeks turn a lovely golden hue, "I'm really happy I got to meet you today. I already care about you a lot, Slim."

Slim smiled, gratefulness and emotion clear in his gaze, while Blue gathered his coffee and got ready to leave. Before he could do so, Slim grabbed his sleeve.

"wait, i… i forgot to ask your name?"

"I'm Blue! Talk to you later, Slim," Blue replied as he waved with his phone so the other knew not to worry.

If going to the coffee shop had been fast, going home was noticeably longer, what with traffic jams starting to break out throughout the city. When Blue finally arrived home, Sans was already up and about, still visibly tired but what was new when it came to the lazybone? He immediately noticed something was up, and he made Blue sit on the couch.

Blue then told him what happened at the coffee shop and how he met his other soulmate. To his credit, Sans took it very well, he didn't show any sign of jealousy or concern that Blue was going to leave him for his new soulmate. He did bring up the fact that the timing was particularly inconvenient, what with the wedding and all, but to Blue's absolute joy, he offered for Slim to join the reception after the official ceremony.

"i'm sure we can squeeze an additional guest somewhere," he managed to say before Blue threw himself into his arms and sobbed in relief and happiness, telling Sans how much it meant to him.

The rest of the morning flew by, their brothers and friends arriving to help them get ready, then extended family and all their guests, and then it was time for the ceremony and Blue never thought his SOUL could beat so fast but he guessed that was what it felt like to marry his soulmate. Everything was perfect, the ceremony was beautiful and emotional, and Blue couldn't be more grateful to get to marry his soulmate. Stars did he love Sans.

There was some hassle before the reception, but as Stretch put it while helping Blue change into his second outfit for the day, what's a wedding without a little hassle here and there. As a result, they ran a little late, which gave Sans and Blue some time to relax before the reception. Blue used the opportunity to check up on Slim.

"Slim? Is everything okay?" Blue asked into the phone, worried that he hadn't had any news of his soulmate since his quick text earlier this morning.

Slim briefly explained that morning shift at the coffee shop unexpectedly extended well past noon, but that he was on his way, and sure enough, less than half an hour later he was calling Blue to let him know he was at the entrance. He didn't want to just barge in, worried that guests wouldn't recognize him and question his presence, and he didn't want to cause any commotion by spilling the beans about his mating with Blue.

"let's go meet him, then," Sans said simply, taking Blue's hand and leading him toward the entrance. "i'm actually curious as hell, and i do think it'll be better if we meet him privately first."

Blue was suddenly thankful that the reception was running late, or he would've probably missed Slim's call entirely. Or worse, Slim would've missed the reception, and that was just unacceptable!

The two small skeletons made their way out of the reception hall, answering any inquiry about where they were going with a simple 'to find somewhere private' that never failed to make their guests blush. At least they wouldn't need to worry about anyone bothering them.

As soon as Blue saw Slim, he picked up the pace and pulled hard on Sans' hand.

"IT'S HIM, IT'S HIM! SANS, IT'S HIM!"

At the sound of his name being called out, Slim turned around and a furious blush spread on his cheekbones.

"wow, blue, you look stunning!" He breathed out.

Blue was about to throw himself at Slim when he felt Sans' hand squeeze his very tight. He almost yelped as he stopped dead in his tracks and checked his soulmate, his SOUL suddenly pulsing anxiously in his chest.

"oh," Sans just said, before releasing Blue's hand, though he didn't even seem to notice what he was doing, too busy staring at Slim, who stared right back. "hi," he said in a strangled voice as he took Slim's hands in his. "i'm sans. it's… really nice to meet you."

Blue took a couple steps back. Something was odd. With Sans, with Slim, and with the whole situation. Sans looked way to happy about meeting Blue's soulmate, and Slim looked way too emotional, and the way his eyelights glistened reminded Blue too much of this morning when Slim had realized that… that…

Wait.

Hold on.

"GUYS, ARE YOU TWO…" Blue began, unable to finish his sentence as he slapped his hands on his mouth to hold back a happy sob.

"it seems so," Slim said with an adorably coy smile, which Sans echoed.

"OH MY STARS, MY SOULMATES ARE SOULMATES!!!" Blue howled into the night before throwing himself at his two favorite people in the world, the familiarity of Sans' arms perfectly balancing the awkward way Slim had to bend down to accomodate Blue's much smaller size.

"slim come on, i wanna introduce you to my bro!" Sans pulled his newly found soulmate toward the reception hall.

"WAIT, NOT FAIR!" Blue pouted as he grabbed Slim's other arm. "I WANT TO INTRODUCE HIM TO MY BROTHER!!"

Slim happily laughed as he let himself be pulled by the two smaller skeletons, happy to have been accepted so swiftly.

All three knew that this wouldn't be simple. Double-mating was rare enough as it was, and what they had might even be unique. They didn't even know if there was a word for it. Triple-mating?

But Blue knew that it would be okay, because as long as they cared for one another, they could do it. And stars did he care for Sans and Slim, his two beautiful soulmates.

#Cognito fic #Rarepair New Year 2024 #Sans #Slim #Blue #Swapfell!Papyrus #Underswap!Sans #Sans/Swapfell!Papyrus/Underswap!Sans #SFW

11 notes · View notes

zirkkun-uthcs · 2 years

Note

Could I possibly have Underfell Papyrus, Swapfell Papyrus, Undertale Mettaton and Underlust Mettaton with an S/O who’s trying out they/them pronouns in addition to their assigned ones please?

Overall, I can't see any of them doing anything necessarily negative in regards to their S/O using new pronouns, but I do think that they would have different levels and kinds of support.

Underfell!Papyrus - His support would be immediate and aggressive. Not aggressive to you, but rather to other people. Edge is gonna be that type of person who the moment someone uses the wrong pronouns, he'll immediately correct them. If this ends up being something you're not a fan of for one reason or another, he'd be willing to talk it out and calm down, but it would take some adjustment. If someone consistently uses your old/otherwise wrong pronouns though, he's throwing hands. And by throwing hands I mean mercilessly giving them a strong talking to.

Swapfell!Papyrus - Rus is a lot more laid back than Edge, so while he will be supportive, he's not gonna go jumping on anyone that screws up. Especially since this is an add-on and not full replacement of pronouns, he'll be pretty lax with it so long as you are. He'll probably use they/them in reference to you when talking to other people every once in a while to subtly hint your new pronouns. If someone tries to complain to either of you about your choice to use they/them though, he'll have to really resist his urge to beat the person into a pulp.

Undertale!Mettaton - This man will just short of begin advertising to the world your new pronouns in excitement. Which might be great, or also a bit too much. He can try to tone it down if necessary, but that will be such a struggle for him given how Mettaton can't keep anything a secret. Really, if there's anyone he's not supposed to declare this to, it's best to remind him of that if you ever go talk to them together. Perhaps not too often, or he might get annoyed himself by too many reminders. But just so he doesn't blow your cover. And if that's not an issue for you at all -- even better. You'll be a perfect fit for Mettaton's loud and proud personality.

Underlust!Mettaton - Bowtie is a lot more anxious by comparison to his Undertale counterpart, and so he's far more likely to just keep your new pronouns used between the two of you and whoever else you may have told about this before using them anywhere he goes. He doesn't want someone to try and hurt you or get mad at you for choosing to be addressed one way or another, but his way of protecting you is a lot more avoidant than the others on this list. Because, well, when Bowtie snaps, he always regrets his actions, even if he never actually hurts the people he cares about.

#undertale #undertale headcanon #undertale x reader #underfell!papyrus #swapfell!papyrus #undertale!mettaton #underlust!mettaton #underfell #swapfell #underlust #underfell headcanon #swapfell headcanon #underlust headcanon #zircon answers #uthcs headcanon #anonymous

119 notes · View notes