Undertale AU's x Reader [DISCONTINUED]

Denial.

Heehoo edgy skele is best skele.. I love him so much I wanna cradle him like a baby-

Oh wait I forgot you guys were here-
COUGH

Anyways here's a story with the angry smal tsundere boye

Art by Poetax (They have multiple social medias, I love their art-)

Warning - Swearing, it's Underfell.

~🍒~

Ah, the underground, a place you called home. Many would think you were crazy if they knew you were still alive, but all was well down in the depths below the mountain. You lived with Toriel, your caretaker who you trusted. Surprisingly, her mental state had gotten much better when you came back after a few days of wandering the underground, meeting new monsters.

It comforted her knowing you weren't abandoning her. You would visit monsters during the day, and return home at nightfall, but by far, the monsters you enjoyed the most were the skeleton brothers, Papyrus and Sans.

After you befriended Papyrus in a battle, he grew kinder towards you and others, but of course still kept up his 'Great and Terrifying' demeanor, after all he was a royal guardsman, and royal guards had to look and act tough.

Then there was Sans, the latter's older, yet smaller, brother. Sans was.. difficult to say the least. Sure, if Papyrus liked you, he could at least tolerate you, but every time you spoke to him, how face would turn red with what you thought was anger, and then he'd yell at you, then leave. You didn't understand why he didn't want you around, but it didn't matter, you still cared about him and his brother.

Today was one of those days where you'd spend time with the skeletons, and currently, you were sitting upon the couch, watching Mettaton's show, since that's what was always on. You had Papyrus's little cat, Doomfanger, in your lap, scratching him between his little ears. Papyrus was in the kitchen preparing a menacing dinner, and Sans was up in his room. Well- he was until he came downstairs.

He gruffed, saw you sitting on the couch, and just plopped on the other end, far away from you. You did the nice thing, and greeted him.
"Hey Sans. How was your seven hour nap?" You joked at the little monster.
Sans just growled in your direction, which was out of the ordinary for him, he'd usually yell at you for bothering him, but today he was more tame.

Doomy crawled from your lap, going and laying by Sans with a purr. You looked at Sans, raising an eyebrow.
"Cat got your tongue today, Sans?" You laughed slightly.

Papyrus groaned from the kitchen, causing Doomy to perk up and head there.
"UGH, (Y/N) DO NOT MAKE JOKES ABOUT MY FRIGHTENING FELINE! HE IS VERY SENSATIVE!"

Sans turned his head away from you, but you could faintly hear a stifled snicker from him as he took a small packet of mustard from his coat pocket.

You smiled wider, eyeing the small skeleton as he practically obliterated the packet of mustard. He noticed you staring and glared at you, licking the yellow sauce off of his teeth.
"Fuck are you staring at!" He barked, you simply laughed in response.

"Nothing. I just wanted to tell you that you're better than all 21 letters of the alphabet."

Sans raised a brow, his glare narrowing.
"You fucking dumbass, there's 26."

You gave a look of fake realization, followed by more of your own laughter.
"Oh! That's right, I forgot about U, R, A, Q, T."

Well, this certainly got Sans's attention, his face turning a deep crimson with blush. He slightly pushed you, growling softly.
"Fuck up. I ain't a 'cutie' or whatever.."

"Sansyyy." You started using teasing nicknames to get his attention. He wasn't having it.
"No."
"Babyyy."
"Shut the hell up!"
"Pupcakeee."
"WHAT!"

You laughed at his response.
"So you respond to 'Pupcake'. Noted." This only made Sans's face even more red, with both anger and embarrassment.

"I- NO- SHUT UP!" Sans yelled, hiding in his very fluffy hood.

You laughed more, scooting over to sit beside the angry skeleton.
"Hey Saaans."

"What in the fuck could you possibly want."

"I love you Pupcake." You said, hugging him tight. Sans flinched, grumbling obscenities under his breath.
"F-fuckin'.. whatever."

"You love me too Pupcakeee?"

"...maybe."

"Good." You pecked him on the cheek, leaving him alone finally to sit in his own blush.

"SANS! (Y/N)! DINNER!" Papyrus yelled from the kitchen. You got up, running a hand across Sans's still hooded head.
"Dinner's done Pupcake. Love you."

Sans just sat there, hiding himself in his coat. But you could see a faint smile under the fluff of it as you left.

~🍒~End.~🍒~

(A/N) - This took way too long to write. Curse you writers block.