Irreversible Scars (SansxReader

Irreversible Scars

It was in the middle of the night and you were still wondering around the house, looking for water and the bathroom.

You yawned and stretched as you reached the kitchen. You didn't bother getting a cup so instead you drank straight from the pitcher. You chugged the nice cold water down until it was half full.

You wiped your mouth and placed the pitcher back in the fridge and you headed to the bathroom.

~

Sweet relief overtook you as you went outside the bathroom.
You stretched, smiling to yourself.

Ah, how you missed this life so much.
Well, you love your new life with the monsters but that doesn't mean you can't miss those normal things in life.

"Mmmaybe i should finish this mental fight tomorrow and get some sleep now" you told yourself.

Walking down the corriders, you began to feel sleepy. You tried shaking your head but that just made you dizzy.

"No. Stay determined. You're almost there anyway"

You passed Sans's room then you stopped and stared at the door.
Oh yeah, Sans is staying with you since Papyrus is off to Frisk's place to have a sleep over.

You smile, amusing yourself. You can't help but think about that smiling skeleton you fell in love with. Yeah you were together but you both respected each other very much to even sleep in separate rooms.

"Maybe someday" you smile to yourself.
Your thought were interrupted by a groan and a sob coming from inside.

You raised an eyebrow and leaned your ear against the door.

"N-no...no....not again, please...it hurts..." You hear Sans sob out.

You hesitated. You wanna go inside but what if Sans was awake? Well, your just gonna have to deal with it.

You opened the door and saw Sans on the bed, squirming on the sheets and his closed left eye glowing a familiar blue color.

You gulped and approached him slowly.

"S-Sans?" You squeaked.

He continued to cry and groan and squirm. You held his arm and shook him.

"Sans, wake up!" You said shaking him. He opened his eyes and sat up in alert.

He looks at you, the glow in his left eye disappearing.

"(Y-y/n)? What are you doing here?" He asked.

"You were having a nightmare again" you said, sitting on the bed.

Sans nods and sighs. "I see"

"What was it this time? Wild dogs? Evil snow man?" You asked, giggling as you remember the same thing happening a few days ago.

Sans started to have nightmares and you'd wake him up. He had crazy nightmares about wild dogs and evil snowman chasing him, and you both would just laugh it off.

"N-no. No (y/n) it's not those nightmares" then he paused "Actually, those nightmares i told you about aren't real. I lied."

You look at him and held his hand tightly.

"Sans, we're a couple now. We're not supposed to keep secrets to each other. i can help you with whatever's been bothering you" you said.

Sans smiles a bit and nods sadly. "I know, doll but...okay"

He pulls out his hand from your grasp and proceeds to take off his shirt. You quickly averted your eyes and blushed.

"Sans! What the heck are you doing?! D-don't do that!" You said peeking a bit.

"(Y/n). Look at me" he commanded. You hesitantly look, careful to only look his face and not his body, but your eyes immediately caught something on Sans's ribs. You brush you hand over it. What was supposed to be a scar now became something more.

The scar cracked.

"Do you remember this doll?"

You look at Sans. "Those previous timelines of me and Frisk doing Genocide...right?" you ask quietly.

Sans nods and holds your hand. "It got deeper and deeper as the timelines repeated. Frisk killed me, it was there the first time, they kill again and again and it got worse, you came along and killed me and it got deep, and then-"

"After the last timeline, this cracked didn't it?" You ask brushing your thumb over it. Sans flinched a bit.

"Does it still hurt?" you ask.

"Not that much but yeah it still does" Sans smiles. You hug him, burying your head on his collarbone.

"Is it my fault you're hurting every night?" you ask, teary eyed.

"I dream about that last RESET every night. It was painful to see it happen again, especially if it was done by the person you love most." he chuckled.

So after all those nights, the monster haunting Sans's dream was you all along.

"I'm sorry Sans...I'm so sorry" you sob as you wrapped your arms around him tightly.

"Shh..doll, it's okay. It's all in the past now alright? It's all in the past." he says, hugging you back.

"Sans?"

"Yes?"

"I have something to show you as well." You pull out from the hug, turned around and took off your shirt. On your back were scars and just below your neck was an injury from one of Sans's Gaster Blaster attack in the previous timeline.

"Hehe. Guess you're not the only one with irreversible scars huh?" you say as the tears flowed from your eyes.

"I still think about that time too...how i wasn't in my right mind and all i could think about was how to get out of the underground but you Sans..." You put your shirt back on and hug him again "You gave me a chance to RESET my life and tried my best to be a better person. Thank you Sans"

Sans cried and tried to hide his tears. "Oh, doll" he hugs back tightly and sobs.

"I love you so much (y/n)"

"I love you so much too Sans"

Both of you shared a long and loving kiss that melted your worries and fears away. You were happy that you RESETted, you were happy that you got a happy life out of that mistake you learned.

That night, both of you slept so well even Sans smiled so genuinely happy like he never was. All because of those irreversible scars and you.

May make spin-off story, may not. It depends :3

Stay determined