Chapter Text
Sans had toiled the night away in his workshop, standing up he wiped the sweat from his brow ridge and looked at his work with a sharp toothy grin. The machine in front of him was now making a resounding hum like it was supposed to instead of making a disturbed grinding sound or worse no sound at all.
Lately he had begun to throw himself into his personal project more vigorously, the underground he lived in had always been a bleak place but recently he found less motivation to persevere. The days just grew darker and no one, who he could consider even remotely close to him, could understand his torment. Witnessing reset after reset, some grimer than the last and others torturously bright, he gave up on happiness in his world. That's when he threw himself into science once again, to escape the reality he lived in.
That is until he realized his metaphorical escape could take on a more literal form.
In theory, not only could there be multiple timelines but alternate universes as well, with infinite possibilities who's to say he couldn't find an even better one than his own? Perhaps he could wind up some place worse, though that would be hard to pull off, he lived in a world where the screams of weak dying monsters could be heard in the distance, where it was kill or be killed.
Needless to say he was willing to take his chances with the unknown.
Setting down his tools he grabbed the remote to his salvation and readied himself, he probably should have gotten a test subject for the first field run but he was growing impatient and didn't want to waste time kidnapping some other wimpy monster. Still he looked at his creation anxiously but none the less stepped in and keyed the controls.
For a moment there was nothing and Sans nearly swore and berated himself for his failure and rusty mechanic skills but then there was a flash of colors and weightlessness. Sans saw red and black then white and blue then nothing at all…
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Sans sat on his mattress with his cellphone in his hands, it had rung once last night but it hadn't been a phone call, it had been an alert to an anomaly. Sans hardly dabbled in science much anymore these days but he kept a system online so he could stay in the know about ‘unusual’ occurrences.
His system hadn't gone off in quite sometime so this understandably worried him.
Rising from where he sat he stowed his cell away and shoved his hands into the pockets of his blue hoodie. He made his way downstairs where sounds of commotion greeted him from the kitchen, Papyrus was up and at it already. Sans looked into the kitchen and looked on as his taller brother went about his morning routine. The lanky skeleton did not notice his shorter counterpart as he went about the kitchen, going to the cabinet to retrieve a pot when instead a kettle and other various utensil toppled out and struck him on the skull.
“GAH! How dare you strike the great Papyrus, you-! Loud obnoxious thing!”
Sans snorted and couldn't help himself “Ain't that the pot calling the kettle black…”
Nearly jumping at the sound of another's voice, Papyrus turned quickly but eased himself at the sight of his brother but his face soon held an expression of confusion, “Sans? What are you doing up so early? It's almost half past eleven.” Sans strolled over to where his brother stood and began to help him pick up the metallic mess on the floor “I thought you'd be happy to see me up and about, bro. What's the matter? This morning not panning out as you hoped?” he jested handing Papyrus the frying pan.
“OH MY GOD SANS SERIOUSLY!” the taller brother exclaimed rubbing the bumped area of his skull “Either way it's not like you, you don't even have sentry duty today!”
Sans handed his brother the last utensil and replied “Got other plans today, gonna stop by Alphys’ and talk nerd stuff.”
“Ugh, of course you'd wake up early for something like THAT.” Papyrus complained “At the very least invite the good doctor to have dinner with us tonight so you can both get a healthy dosage of spaghetti.”
“Alright, but if I invite Alphys I'll probably have to bring Undyne too. Those two have been kind of package deal lately.” Sans retorted heading out the kitchen as Papyrus followed.
“The more the merrier! And then Undyne will get to see how much better my cooking has gotten since our last training session!”
“Sounds like a plan.” Sans replied opening the door to Snowdin, “Take your time cooking, knowing me and the good doc, we'll probably lose track of time.”
“Will do! Take care now, and watch for humans just in case!” Papyrus called as the blue coated skeleton headed out to the cool snow. It was very odd for his normally narcoleptic brother to engage in such social activities on his day off, but nevertheless the great Papyrus was optimistic. Who knows? Maybe his brother was starting over a new energetic leaf! Most likely not, but it was always good to hope! The Great Papyrus gave a cheerful ‘nyeh heh heh’ and headed back to the kitchen to practice his cooking for dinner tonight.
Out in Snowdin Sans walked a leisurely pace but in his mind he began to hypothesize what this new anomaly could be. It certainly wasn't a reset, the date was still the same so maybe time manipulation was out. He was certain Alphys could come up with a few conclusions as well if she hadn't detected this anomaly already, he entrusted quite a few secrets to the socially awkward scientists and she in turn had shared a few things she'd prefer to keep hidden as well.
Both nerds just wanted the most peaceful outcomes in the end, so they worked well together. And they would resolve this like any other query that crossed their path.
With a reassuring sigh Sans trotted on, even picking up his pace on the way to the Hotlands.
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Hidden in the foliage Sans watched his blue counterpart depart from his home and slowly disappear into the nearby town. This was an alternate dimension alright, a brighter, cheerier version of the home he had left behind, when he had first gotten here he could hardly trudge through the snow, too disorientated from his dimensional jump to do more than seek shelter under a tree for the night.
Now, cold, hungry but vastly determined he explored the area, how quaint this universe mirrored his own.
And that doppelganger of his...well they didn't seem too similar after all. Sure their statures were pretty spot on but the blue boy didn’t have one jagged or golden tooth in his mouth, not to mention his stylistic choices...Then again what was he to expect? A monster like himself stuck out like a sore thumb in this sorta place, with his harsh colors and sadistic grimace. He would definitely cause an upstart if he headed into town like this…
Then an idea came to his skull as he turned back to blue boy’s house, odds are he had a few hoodies he wasn't using, if he snagged one his attire would probably fit in better with this pastel colored place. He could just keep the hood up to hide his more menacing features, plus he was curious how different this home was from his own and what better time to investigate then when he was out on the town?
The dark fallen monster slunk through the woods and slowly made his way to the side of the house and then toward the front door. There didn't seem to be any security measures he could detect, he lighlty jostled the door knob to determine how tough the lock was but found it hadn't been locked at all! That was plain careless even for a lazy clone of him! Maybe the neighborhoods here weren't as dangerous....?
He opened the door and entered cautiously but was hit by the sound of clanking metal and the smell of home cooking. His senses overwhelmed, his eyes darted about his surroundings, the layout was somewhat similar to be sure but the decor just had a more approachable feel to it. Like the house was actually meant to be relaxed in rather than be shown off, that's at least how it was back home. His taller brother was never one to design for comfort when it came to their living room, constantly vacuuming the carpet if he felt even the tiniest speck of dirt’s presence and even covering the couches in plastic wrap, arguing that his lazybones would get mustard stains in the cushions otherwise.
Sans let out a grim chuckle at the thought of how he finally escaped that irredeemable nag machine and shut the door behind him harder then he should have. He nearly swore when he heard the door slam, and the sudden halt of noise in the kitchen only confirmed his blown cover.
“Sans?! Is that you?” A strange yet familiar voice inquired, he soon heard footsteps from the kitchen headed towards him. He glanced quickly for any hiding spots, teleporting now would only alert this monster further. Too late, a tall brightly clad skeleton entered the room, “Sans? Don't tell me you're back from Alphys’ alread-?!”
Papyrus stopped in his tracks at the strange looking skeleton before him. It was Sans, or at least he thought it was, but he looked so...red! His clothes and even his eyes were the color and everything else was just dripping with a dark edge.
Likewise, the short red skeleton looked onto him with some fascination, this must be his brother's counter self but they couldn't be more different! This monster's bones were rounded and his battle body was far more conservative to his frame. Like his own counterpart, this Papyrus lacked sharpened teeth, in fact his mouth seemed to hold a permanent cheerful smile rather than a fanged smirk.
Getting over his initial shock the happy skeleton spoke again, “Sans? Why do you look like that?”
The red Sans thought on his feet as best he could, “You don't like it, boss? I thought I'd try something different!” he couldn't look more different than this world’s Sans.
“Different?”, Papyrus inquired with a perplexed expression, “What do you call this look, brother?”
The taller skeleton stepped closer even prodding the heavily furred hood the other wore. Sans began to sweat, “Its called- punk!” god that's stupid...he thought to himself.
“Punk? Oh, like what Undyne calls all the unruly children?” Papyrus asked finally stepping away from the shorter monster.
“Yeah! Exactly! You know kids are always the first to learn the biggest trends!” Red added.
Papyrus gave a sound of understanding with a smile, “Its something to get used to but I am glad to see you taking an interest in fashion, brother! And now our color schemes will match! I have to wondef if that was by accident or that you've finally started following the example of your gloriously fashionable brother!” the confident skeleton said with his hands on his hips and his head held high.
Sans started to relax at the sight of this cocky but funny skeleton, “Yup, I guess I can't pull one on you, can I, boss?”
Papyrus looked down to Sans in puzzlement, “Sans, why do you keep calling me ‘boss’? I may be your very mature brother but I'm not your ‘boss’.”
Sans nearly flinched “Aw, now you don't like that? Well, I guess you can only try so many things in one day! Huh, P-paps?”
Papyrus clicked his teeth but shrugged. Sans let out a breath he didn't know he was holding and was reintroduced to the smell of home cooking, his nonexistent stomach growled.
“Say, uh-you cookin’ something, brother?” he asked hopefully.
Papyrus suddenly put on a face of excitement and jogged back to the kitchen “Ah, that's right! I'm cooking some of my famous spaghetti!”
Famous spaghetti? Sans thought longingly, he was usually a hamburger and hotdog guy, but right now spaghetti didn't sound half bad.
“Come, brother! I'll let you have some for lunch if you like!”
Sans’ body groaned, he couldn't fight it, he hastled into the kitchen and sat at the table, waiting for the promised spaghetti. Papyrus was nearly done as he stood over a boiling pot, “So, Sans, why are you back so early? I thought you were going to be doing nerd stuff with Alphys today.”
The red Sans silently groaned at being interrogated again instead of being fed
“Eh, wasn't up to it. Besides I'd rather eat spaghetti made by my great big brother.”
He almost regretted letting some of his trademark sarcasm slip in but the other skeleton didn't seem to notice, he even seemed pleased! Red decided to take some initiative to avoid further questioning.
“So, how ya been, Paps? Can't remember the last time I asked what was going on in your world.”
“Oh! Funny you should ask…!”
Papyrus began to prattle on about puzzles and royal guard training much to Red’s satisfaction. He suspected he was a chatty one, and not only was he removing suspicion from himself but now he had the chance to gain precious intel on this world he landed in. Papyrus soon delved into the happenings of Snowdin and Waterfall, and continued even after serving them their plates of spaghetti.
Sans listened intently as he had his chow, it was actually pretty good, his own brother was a master chef but he had never tasted his cooking, deeming that he would only cook for those worth impressing. Perhaps he enjoyed it rather too much as he let some sauce drip from his mouth, luckily Papyrus only chided him and whipped his face dotingly.
His brother was really enjoying his food more than usual, he must be getting quite masterful in his culinary affairs!
After their second serving Papyrus gathered up the plates and began washing them in the sink. “Say, brother! Since you're here, would you like to watch the Mettaton Marathon with me? They're supposed to feature all his greatest hits! And his new body!”
Sans pondered a bit, he really shouldn't stick around too long. He didn't wanna be here when the other Sans showed up, but then again Papyrus said he was supposed to be out late doing ‘nerd stuff’ and he should really take advantage of this opportunity to absorb as much information as he could.
And also...he kinda liked hanging around this Papyrus.
He fed him, made conversations easy by doing most of the work and he was pretty interesting to watch. So dorky yet so confident! It was pretty amazing that combo even existed!
“Okay, paps. Switch it on.”
The two headed toward the living room and sat on the cushy couch, Papyrus took the remote and switched it on to his favorite channel. This Mettaton was far different than the one Sans knew of, more glamour and ritz than bloodshed and vulgarity. Papyrus just ate it up, reacting enthusiastically to every twist, at one point Red didn't know which to watch the show or Papyrus.
He ended up choosing Papyrus.
“And THAT’S how it's done, beauties!” Mettaton proclaimed.
Papyrus cheered from his seat on the couch, “Mettaton’s the coolest! And I thought he was a sexy rectangle before! His new body is amazing!”
Sans grinned at the lively display. “Sexy, huh?”
“Oh, of course! A compliment of ‘sexy’ is a high honor from the great Papyrus!” the taller skeleton replied.
Sans gave him a curious look, this Papyrus was certainly goofy but he didn't seem dumb. Still he had to wonder…
”What's it mean?”
“What's that, Sans?” Papyrus asked, peeling his eyes away from the television.
“Sexy. What's it mean?” Sans asked again.
“Why, sexy is a high compliment, brother. I'm certain it means your attractiveness levels are very high!”
Sans blinked and almost chuckled, was Papyrus really this innocent?
“Oh yeah? Uh, who else is ‘sexy’, bro?”
“Oh, most monsters I surround myself with are quite sexy, brother!” Papyrus declared proudly. “Alphys and Undyne are quite a sexy pair! And you too, brother!” he finished patting his red companion on the back. Sans had been stifling giggles but calmed a bit when Papyrus had ended with complementing and patting him.
Huh, he wasn't used to being treated this nicely. Especially since he was just poking fun at him, though it was probably because Papyrus was pretty oblivious. Deciding to continue he posed another question,
“Hey, Papyrus, where do babies come from?”
Papyrus rolled his eyes in annoyance, “Ugh, you know I don't know, Sans.”
Sans could barely restrain a chortle, “W-why not?”
“Cause you won't tell me!” Papyrus proclaimed exasperated.
Sans took a moment to regain his composure. This monster truly amazed him, he wondered who worked so hard to shelter him? Looking back to the television, two monsters were in the midst of a passionate kiss.
“Hey, Paps, is that sexy?” Sans asked when he caught his breath.
Papyrus actually looked contemplative, “I'm not sure. I'll have to try it myself and see…”
Hasn't even had a real kiss yet? That's actually a damn shame.
“When?”
Papyrus looked nervous, “Soon, I'm sure! I bet there are plenty of monsters just wishing they could share such a thing with the great Papyrus!” he stated firmly, though Sans could see some doubt in his eye.
Aw, where'd all that confidence go, pappy? Sans looked the other skeleton over, there was actually a word to describe what he was but he hated using it. It felt disgusting on his tongue and made him cringe normally but it actually suited the monster before him pretty well...Papyrus was...ugh...cute...eh fuck it.
“Why don't you lay one on me, paps?”
Papyrus looked to his red companion bewildered, “Huh?”
“Gimme a kiss. You wanna try it, don't you?”
Papyrus’ cheeks suddenly flushed, “Uh- You- Me- Right now?!”
“Yeah, sure, just gimme some sugar.” Sans said casually with a mischievous grin.
Papyrus’ blush brightened further, “Uh- don't we have to- make the mood right?- And-?”
“Nah, paps. Ya gotta just let these things happen naturally…” Sans advised softly leaning closer to the taller skeleton.
Papyrus’ eyes darted about nervously as he wringed his wrists.
“Well uh, alright…”
Papyrus faced Sans and slowly lowered his face down to his, with a small gulp he pressed his teeth quickly to Red’s with a tiny clank.
With a nervous cough he asked, “Uh, how was that?”
Sans touched the spot Papyrus had planted a small skeletal kiss.
“Not bad for a first try,” Sans said encouragingly, making Papyrus smile a bit.
Sans liked that look on him, “Hey, how about you try doing it like they did on the tv?”
The great skeleton felt nervous again but a bit more confident now.
“Uh, okay! The Great Papyrus is up for the challenge!”
He moved his face close to Sans again, the smaller skeleton meeting half way, and they clanked their teeth together for a longer kiss.
Soon Sans began to move his teeth about Papyrus’ mouth, this surprised him but he was also fascinated by the way Red’s sharp teeth felt against his own. Papyrus soon felt a warmth growing in his bones, starting from his ribs and reaching towards his spine.
He wrapped his arms around the smaller skeleton, easing further into the kiss.
For a beginner, Paps was actually a pretty good kisser. Sans brought his own arms around the skeleton but let one hand rub near the bottom of Papyrus’ tender rib cage. The taller skeleton sighed blissfully into their kiss, Sans liked that sound.
Could he make more?
Opting for a ballsy move, Sans summoned his tongue with magic and slipped it into his partner's mouth. Papyrus nearly froze at the foreign yet pleasant sensation, he pulled away to look at the mischievous skeleton.
“You have a TONGUE, Sans?”
“Yeah,made it myself.” Sans stuck it out, showing off a bit before withdrawing it. “You wanna try?”
“Yes! What do I need to do?!” he asked bubbling with excitement.
“Just close your eyes, and imagine what it's supposed to feel like, it's all instinct from there.”
Papyrus nodded then closed his eyes and concentrated, after a moment or two he opened his eyes and then his mouth to reveal a bright new tongue.
“I didth ith!” he exclaimed proudly admiring his handiwork.
Sans chuckled and shook his head, he would bite his tongue that way…
And that's my job.
Sans put his hand behind Papyrus’ head and leaned him in for another kiss. With tongues now in the mix, things got sloppier and even more heated. Sans sharp teeth scraped against Papyrus teasingly, their tongues intermingling heavily.
The heat that had been growing inside the tall skeleton quickly doubled in intensity. It only worsened when the smaller skeleton began slipping his hands up his battle body to caress his ribs and brush past his spine. Suddenly the heat started to build in a new area, this startled Papyrus enough that he pulled away a second time.
“Huh? Waz tha matter?” Sans asked dazed and disappointed that the big and ‘sexy’ skeleton stopped the fun again.
“Sans, I feel...weird..”
Confused at first the small skeleton quickly caught on with a grin.
“Where?”
Embarrassed, Papyrus simply nodded downward, that was all the hint Red needed.
“That's alright…” he said letting a fingertip caress a side of Paps’ pelvis. The tall monster let out a surprised gasp much to Sans’ delight, “Good, right?”
He could only nod.
Sans swiftly went back to work, this time teasing Papyrus’ neck with his tongue and teeth, eliciting shaky yet pleasured moans from his victim. Sans set his hands to work as well, one gripping one of Papryus’ bottom ribs and caressing torturously slow. The other stroking around the front end of the tall skeletons flawless pelvis.
The two monsters were soon lost in each other's heated embrace, the only sounds in the room being the now ignored tv and the gasps and moans of the inexperienced skeleton.
Out of tune with the rest of the world, the two monsters didn't hear the front door casually open, nor did they hear the footsteps of the three monsters entering the house.
“Hey, Paps, I'm back early! I brought Alphys and Undyne for din-”
The blue hooded Sans stopped dead at the sight unfolding on his couch, the two female monsters also halted and gaped in shock.
Papyrus was in the arms, and full on making out with a familiar but strange and dangerous looking monster.
A monster whose hands were deep inside the naive skeleton’s pants.
Undyne finally voiced what everyone was thinking.
“WHAT THE HELL?!!”
The royal guard’s outburst finally caught the pair's attention as they jumped and noticed the small audience before them. The young reptilian scientist currently sported an intense nose bleed, Undyne looked as if she had just walked in on a nude Jerry and the blue hooded Sans’ expression was indiscernable, his eye sockets completely black.
Red quickly looked to the group of monsters, then to Papyrus, then down to his hands still buried in said monster's pants.
“Well, shit…”