My One and Bonely (Sans x Reader)

Are You Sure?

You walked hand in hand with Sans. Papyrus was ahead.

"Are you sure about this, (y/n)? I mean, we're talking about Chara Dreemurr! A psychopathic murderous demon with enough LV to kill every single monster in one hit!" Sans asked you. You looked back at Chara and Frisk who were talking and laughing together.

"Yes, Sans. I see something in her and I'm determined to help her," you said, waving at Frisk when they waved.

"Alright. But I get full permission to fuse with Papyrus, take your soul, and dunk the little brat if they kill you, alright?" Sans said. You sighed looking back towards Papyrus.

"If you must, yes," you said.

"Human, brother! We are here!" Papyrus said, stopping at your house.

"Ms. (L/n)?" Chara asked. She was so polite when she wanted to be.

"Yes, Chara?" You asked.

"C-can I stay with you? Please?" She asked. Her little redial brown eyes looked at you. You could see Sans giving you a look that said, "don't do it."

"Sure! I'll take great care of you!" You said. Chara's face lit up with excitement.

"Thank you so much! I promise I'll be good! Just...um...keep me away from knives and weapons," Chara said, taking your hand. Sans face palmed.

"If the brat is stayin, I'm stayin too!" He said, much louder than he had intended. Papyrus picked up Frisk with a semi worried expression.

"Are you sure, Sans? I mean, I was going to-" he started.

"I said I'm staying!" Sans said. You had never seen him like this before. Concerned, worried, and protective. Sure you've seen him get a bit over protective of Papyrus, Frisk, and you, but never like this.

"Calm down, Sans," you said. He looked at you and grunted.

"I just want you to be safe, (y/n)," he said, walking over to you.

"I know that, but we need to stay calm and collected if we're gonna have any luck helping Chara," you said. He muttered something under his breath that you heard as "well what if I don't wanna help that dirty brother killer..."

"Well, if you're staying, Frisk and I will just go back home and enjoy some lasagna and one of Mettaton's new movies," Papyrus said, taking Frisk back home. You looked at Sans.

"I guess you can stay," you said. Chara shrugged.

"Well, least I can try to make friends with you, Sans," Chara said, smiling slightly. Sans glared at her.

"Just know I'll need more than an apology or two after killed everyone I had ever loved you filthy little brat!" He snapped. You popped Sans on the skull.

"Ow! Careful, (y/n)! I only have 1 HP!" He said.

"TRY to be nice to the guest, at least!" you yelled at him.

"Fine! Geez!" He said.