Under the mean face(Underfell Sans x reader)[COMPLETED]

SANS' EMO MOMENT

Picture above is a mask I made.

Sans pov
Yeah, why didn't I killed her? What made me change my mind about her, what made me fall for her? I stared in empty space as my mind was flowing with questions. (Y/n) had finished patching up my cuts, but she simply left without a word. She was upset, and that emotion in her eyes, it was... hurting. I seriously can't see her like that. I... I need to cut. Wait no, she's upset because of that. But it's the only way to evacuate bad things without killing anybody. Uuuugh....

Ok, I'll just.... I'll just think all over, maby it'll help.

(Italic = flashback)

I need something, I want to feel something. I walked to my room where (y/n) was and locked the door behind me. I started to remove my shirt and pinned her on my bed.
Feel something
Feel something
Feel something
I need to feel something.
~timeskip~
After the pleasurable time I had with her, I didn't really felt better. Maby because she was crying the whole time. Maby because she was pushing me away as much as possible. But just after, she stopped crying and went downstairs to cook supper. But not long after she went downstairs, I heard her cry again, running up the stairs and locking herself in the bathroom. I got out and putted my skull against the door, I heard (y/n) hissed in pain and the too familiar smell of blood entered my... nostrils? She was... no no no... She can't do that. I started to knock on the door, harder each seconds, I eventually teleported inside and there she was, bloodied and unconscious.
There...
I feel something....
Sadness... Guilt... Anger.... Compation?
Maby it's because she's like me? She cut herself to evacuate the pain and doubts? No, she clearly wanted to die. She wouldn't have cut so deeply and so many times if she wanted to feel better.
She's like me in a kinda way. I don't want to be the cause of someone's death, even if we're in Underfell. Everyone kills eachother and pick up fights for nothing, but nobody like this atmosphere. Fear is always present, even at the grocery store! I'm sick of everything, if I help her, maby we'll finally get out of this hell hole. And... Hopefully not creating an other war when we get out. We need to get out of here, or the monster race will disappear, we can't keep killing eachother forever, cause one day, there'll be nobody left. She's the only one that can save us.

I need to protect her.

(Flashback end)

Maby that's why..... I can't tell if I did all this only to make her help or if I'm really feeling something for her. I'm not good enough with emotional shit to know. I've never felt this way before and it scares me. It's the first time that somebody is so kind and caring about me, well, she wasn't like that at first, but when I started to be kinder, she did the same. Seriously, I never felt so happy to see someone and yet so intimidated. That's the most weird feeling I've ever felt, but it's unique and pleasant. I... I love her, and I need to make it up to her. She's been so kind with me and even gave a fragment of her soul to help the monsters, the ones that tried to kill her numerous times. Wait, why was Undyne angry at us again..... She... I think she mentioned something about being angry with the fact that a human could walk freely in the Underground.... Wait, if she's thinking this... The other monsters probably think that too! That means that (y/n) is in danger everywhere... Even-

I heard a scream.

(Y/n)'s scream.

Ok, this chapter is reeeaaaaaally short, but the next chapter will probably have like.... twice more words then I usually do. Also, sorry it took so long, kinda had update problem 😒. I've been trying to upload this chapter for about three weeks, but... y'know, it didn't worked since I haven't updated in so long. Sorryyy😌.Hope you enjoyed this chapter, see you to the next one!
BYEEEEE!!