Multifandom oneshots (On Hold!!!)

~~~Someday we will get our happy ending~~~ Sans x reader

Noone's pov.

Sans was standing once again in the Judgment Hall waiting for the human to come. The human started a genoside route. But it wasn't just any human. It was (Y\N). A once kind girl with a heart of gold. In previous timelines she always chose to play the pacifist route. But all good things come to an end. One day she just snapped. After so many resets. After so many failed attempts to get the true pacifist ending. (Y\N) snapped. And she chose genoside. After the first time she chose this route and beat it, she chose it again. And again. And again.
Sans was waiting for her. He knew she would have to come soon through this hall and battle him. Ans she knew it too.
Clutching the knife with some monster dust on it she walked through the large doors into the hall. It was beautiful. The way the rays of light came from the windows making it seem the sun was shining through them. But (Y\N) ignored it. Her goal was to iliminate Sans.
Sans. The skeleton that stole her heart. Yes, she fell in love with him. But she gave up a long time ago to confess her feelings to him. It was too late.
Her once bright (e\c) eyes were dull and almost lifeless. She looked at Sans. She didn't say anything. She didn't have to say anything.
"Heya. You've been busy, huh?" Sans asked. He felt betrayed. The girl he loved, the once kind hearted girl he used to love so much now stood in front of him with a knife. A knife stained with his brother's dust and blood. He felt betrayed that (Y\N) chose genoside. What made her change?
"So, I've got a question for ya. Do you think even the worst person can change...? That everybody can be a good person, if they just try?" Sans continued. A part of him hoped that she wouldn't answer, and yet a part of him wanted her answer. A part of him wanted her to say that people can change for the better. But he didn't get a reply. She just stared at him. With no emotions what so ever. She just stared at him with dull and lifeless eyes. It almost seemed to everyone that she was a living corpse. Undead. Empty. Hollow.
"All right. Well. Here's a better question." Sans continued with his eyes closed. But then he opened his eyes and said.
"Do you wanna have a bad time?" his eye-socets were hollow. No light. No pupils. It made his perminet grin creepier. But (Y\N) wasn't fazed at all.
"' cause if you take another step forward... You are REALLY not going to like what happens next."
(Y\N) took a step forward. Her footstep echoed through the hall. She knew what was going to happen.
"Welp. Sorry, old lady. This is why I never make promises." He finished and a red heart was pulled out of (Y\N)' s chest.
"It's beautiful day outside. Birds are singing, flowers are blooming... On days like these. Kids like you... Should be burning in hell."  And so they began to battle.
~~~timeskip~~~
Sans' pov.

I was starting to get to get tired of using this much magic. It seems like (Y\N) has unlimited energy. How does she keep attacking me? How is it possible that she doesn't run out of energy? Sudentely I felt pain course through my body. Mainly from my chest. I looked down. She slashed my chest and now it was bleeding. I was loosing blood too quickly. I dropped on one knee unable to stand properly. I wanted to say something but when I tried, I coughed up blood.
"Don't waste your energy talking. We both know it won't work and we both know you will soon die..." I looked up. (Y\N) was standing in front of me and looking down at me with an emotionless face. Her voice was more of a whisper rather than the loud mocingly tone she used while slaughtering the other monsters. At the corners of her eyes there glistened something. Were those tears? Was she crying? Why was she crying? She finally got what she wanted. A single tear rolled down her cheek but her face never changed. I started feeling dizzy. I started falling but a pair of arms cought me. It was (Y\N). She gently layed me down on the cold floor. I looked at her face. Her face changed. She looked...... sad?
"Some day, Sans....... Some day... you will understand why I'm doing this.... Some day... " She said quietly. She looked at my face for a moment. Then she gently kissed my forehead. My eyes slightly widened but soon they started closing. I was dying.
"(Y\N).......... I love you." I said with my last breath and then I felt myself turn into dust.

(Y\N)'s pov.

Sans turned into dust. Only his blue jacked remained as evidence that he once lived. I couldn't bring myself to touch neither his jacket nor his dust. I lowered my head and I started silently crying. I didn't make a sound. The only sound that I did make was the quiet whisper and the knife that fell out of my grasp.
"I love you too, Sans.... Some day...... We will get our happy ending.... I promise...."