[Undertale] Sans X Reader - Repeat, Eternally

Chapter 45 ~ Underfells, of Day One - Undyne

Odear we have a problem
I don't think this will be done in 50 chapters
I seriously think I might accidentally make it to 150 or at least 120
We'll see, there's no guarantee about anything yet.

You blinked awake, and felt soft, puffy material all around you. Sitting up in shock, you remember the events of yesterday.

You were in room 118, having checked in to help the Underfells. Today, it would be Undyne, Alphys, and Monster Kid that you'd be saving.

You got out of your bed, and froze. In the shadows, two bright red eyes stared at you. A chuckle arose, high-pitched.

"InnnNTeeerEsssting. . ."

The figure begun to fade away, choosing darkness instead of light as the sun began to rise. Was whoever that was watching you sleep...? You shivered.

You took a look at the paper given to you by the terrified hotel staff. The monsters enjoyed eating them, so they were more than compliant to defy the Underfells if it meant their lives would be spared.

Undyne Fishsticks, Room 222.

Alphys Zardeggon, Room 007.

Monster Kid, Room 092.

There were a total of 400 rooms in the hotel. You figured Undyne would most likely be the best place to start.

"Maybe I should start calling her Colonel Fishsticks. See the reaction on her face." You mutter. The Undyne of your world hated her last name, and even went as far as to erase it from everyone's thoughts by blasting it off her mailbox with a spear.

Even though the Underfells were opposites, there were still some things that both the originals and Underfells shared in terms of likes and dislikes.

You quietly roamed the halls, unaware of a shadow stalking you with intense curiosity. Uf!Sans and Uf!Papyrus were outside their room, Room 143. They turned to you.

"Heya, babe. You okay? Ya don't seem all too thrilled to see us." Uf!Sans stepped in your way, preventing you from going forwards. "Look. Queen B*tch is sorry for what she did to your mom, and I get that... but if you ever wanna see her pay for what she did, come find us."

Uf!Sans put a hand on your should, and Uf!Papyrus grinned.

"That's right... we'll make her pay for you. Don't worry, it would be killing two birds with one stone... after all, she was kicked out by her husband for protecting a human. Poor hag thinks Asgore still loves her. Asgore's been havin' lots of fun in his room, though..."

Both Uf!Font brothers grinned at one another. You were sickened at the fact they didn't see how wrong that was. Your heart felt a little bad for Uf!Toriel, but part of you still wanted to see her pay for what she did to Toriel.

You sighed, and gave them a smile. "I'm fine, see? I just have a lot running through my head right now." You shrug. The Uf!Fonts step to the side, and you continue on to Undyne's room.

Opening the door, you were greeted by the smell of cinnamon. What you saw shocked you. Uf!Undyne was taking cinnamon buns out of the oven- her clothing was a little more than suggestive.

Her top was black and red, and just barely hid her breasts. It looked ripped off at the bottom. Undyne was wearing skin-tight jeans; or were they slacks? You couldn't tell. She had no shoes on and the only other piece of equipment on her was her eyepatch.

You stepped to the side, and as expected, 40 spears of florescent red were stuck in the spot you had just been in.

"The hell are you doing here?" Uf!Undyne snarled, another spear forming in her hand.

"I'm here to play a video game with you or something." You say, and step to the side. Another red spear is embedded in the wall beside you.

"NO GAMES TODAY!" More spears came at you, and you dodged and danced past every one. "LET ME HIT YOU!!!!"

"C'mon, Undyne. Help me help you." You mutter, stepping closer.

"SSSSSTAY AWAAAAAAY!" Uf!Undyne screamed. "YOU HAVE NICE-COOTIES. THE MOST DEADLIEST DISEASE IN THE ENTIRE UNIVERSE!"

You attempt to hug Uf!Undyne, but she moves out of the way.

"NNNNNNNNOOOOOOOOOOOOOOOO!" She screams.

"UNDYNE, BY THE END OF THE DAY, YOU WILL BE HUGGED."

"I REFUSE TO CONTRACT YOUR DISEASE!"

"TOO BAD. WE ARE DOING FRIENDLY THINGS TODAY! RIGHT NOW!"

"I DON'T WANT TO! I WOULD RATHER DO NASTY, MEAN THINGS, LIKE MURDER EACH OTHER!"

"THINK NICE THOUGHTS, UNDYNE!" You scream, tackling her to the floor.

"NOOOOOOO! GET OFF ME YOU PIECE OF SH*T!"

"LANGUAGE!" You stuck your fingers in her mouth.

"ghsjfnshsjmsnfusjdbsis STTTTTTOOOOOOP." Undyne screamed, and attempting to get away from you.

"NEVER!"

Oh dear, you were in for a lot of talking and friend - making.

Originally I was gonna make it all one big chapter and then I realized hey
I have Internet and you guys want it so I might as well end it at 800 words and give you some fluffy stuff before stuff gets serious

Well, two more chapters until day two. This one is labeled Undyne, and the next two will be labeled as their respective monsters.

I love Uf!Undyne xD