[Undertale] Sans X Reader - Repeat, Eternally

Chapter 30 ~ Underfell Fonts, of Redemption

There is teasing- like "ha ur a virgin", but nothing else sexual;; It's Underfell Sans. What do you expect?

"You don't...have to go with me, you know." You say to Underfell Sans. Underfell Papyrus was still following like a dog. Or, even better, a puppy. He hadn't seemed to change in the slightest.

"Yeah, we do, kiddo. We nearly killed 'ya. O'course, Frisk might not get off as easy." 

"What do you mean?" 

"In our world, Frisk wasn't possessed by this 'Chara' thing you told us about." Underfell Sans said, his eyesockets entirely black. You had told them about the timelines of your world. "Frisk killed everyone of his own volition after he gained our trust. He was a nasty little creature. My bro was the cruelest, though." 

"Yep. I am, Sans. You'd better keep that in your mind...! Even if we are...good guys now." Underfell Papyrus shuddered. He still wasn't used to the idea of good.

"But...Frisk is the good guy. Frisk has always been the good guy." You say. Sans laughs his psychopathic laugh.

"Nah, kiddo. Not in our world. Remember that everything is opposite to the one you're in. The original one." 

"So...if you all died, then how...?"

"Frisk reset." Underfell Papyrus was looking straight ahead.

"Over and over again." Underfell Sans finished.

"Until we..." Underfell Papyrus and Underfell Sans were in complete sync. 

"Remembered how we died." 

"That's...terrible..."

"Our world was reset 1133 times. Fully, I mean." [I'm gonna refer to them as Uf!Papyrus and Uf!Sans from now.] Uf!Sans chuckled darkly. "Right from the beginning. We repeated over and over and over and it drove us batsh*t insane." 

"I... I've killed Sans." Uf!Papyrus admitted. "Because he protected the human. I've killed him 100 times..." 

"Relax, bro. No hard feelings. I've killed you about the same amount." Uf!Sans winked, sliding his hands into his pockets.

"Lies! I am the great Papyrus! Nobody kills more than I!" 

"Except for....Gaster." Uf!Sans sighed. "If we had brought you to our Gaster, you'd be dead by now." 

"He is... our.... our... old man." Uf!Papyrus said, his face falling. He obviously felt disheartened. You took his hand in yours, and he pulled away. "Do not touch me! The only reason you are not dead is because of Sans."

"I know... the Gaster of our world. And he's... well, he would experiment on any human that fell. I'd like to know...do I exist in your world?" You were almost eager to learn. An opposite you. What would they be like? Would they have been conscious? Would they have... chosen Gaster over Sans?

"No. You don't exist there. Sorry, sweetcheeks." Uf!Sans chuckled again. "If ya did, we'd know. After all, you said you had a couple encounters with our Originals when they were younger, right? Well, the only thing that seems to change is morals and personalities. Encounters happen in the exact same way... but we say and do different things." 

"So you almost killing me was the same as the Original Sans' love for me?" 

"I can only assume that my bloodlust was equal to his love or lust for you, yeah. Damn, the other me must wanna bone you so hard." 

You stopped in your tracks, covering your face to stop yourself from blushing. "Don't talk about things like that!" You protest.

"What, are ya a virgin? I'm not." His grin seemed to spread wider across his face. "In fact, I think I've done it about-"

"STOOOOOOOOOOOOOOOOOOOP!" You shout, interrupting him. "I don't wanna hear about this! I don't, I don't, I don't!" 

"Pfft. Brother, they're a weakling. They haven't even done it once. Why, at the palace, I was doing it every day."

"Please tell me this is the only...that...kind of Universe!" 

"Actually, Gaster has uncovered a that kind of Universe. He named it Undertail."

"Why is it called Undertail?" 

"Because everything that happens happens under tails." 

"Ssssssssssssssshshshshshshshshshsh!" You insisted. It was partly your fault for asking, but what else did you expect from these two? They were shameless. They were the opposite of Sans and Papyrus, and had no filter. The once-innocent Uf!Papyrus looked extremely different. You literally glared at him while you took in his features. There was a large crack in his skull, one that Papyrus didn't have. His eyes glowed red and instead of a friendly mouth, it was full of sharp, pointed teeth alike to Uf!Sans' mouth.

"Human, you're creeping me the hell out. Stare at Sans." 

"Hey, that means she likes me more. I'm winning." 

"Nevermind. Continue to stare at the great Papyrus, provided no feelings blossom. Our relationship is purely platonic, do you understand? The great Papyrus doesn't do feelings. You may be able to get away with dominating my brother-"

"They didn't dominate me!"

"You will not be able to achieve the same with me."

You let out a laugh, which shocked both brothers. "Y'know, you two could do a comedy routine. You're great!" 

"...Shut..up.." Uf!Papyrus said, without really meaning it. 

"Hey, bro. We should pursue a comedy job, huh? It would be pretty cool. You'd be my cool bro then."

"But I like being your cruel bro..." Uf!Papyrus stared off into the other direction. You could tell he was enjoying the attention.

Just a little Uf!Sans and Uf!Papyrus fluff for you.