Underfell Sans x reader

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~Warning: Minor blood and cursing~

small droplet of blood ran down your eyes and stained the snow covered ground. Your hand were pressed to the big cut on your side. limping all the way back to the place you had grown to call 'home'. It was weird to look back when to the day you feel. you slowly made your way through the brutal underground, one scar at the time, trying to free them all. it has been month, but you were still stuck with a gang of monsters in waterfall. thankfully Undyne was on your side.

What shocked you more was that you accepted to live with the two people that cause you the most trouble. two skeleton brothers named Sans and Papyrus. they had caused most of the scars on you that you got in the underground before you were capable to befriend you. they wasn't that big, threatening and means when they trusted you. filled with relief when you were opening the door and being erased with the warmth of the house.

'I have to get cleaned up before one of the brothers notice' you thought as you took of your shoes and jacket. "What the hell happened to you sweetheart?" quickly turning, and instantly regretting it when the pain shoot from your side, made you eyes meet a worried Sans that was sprawled out on the couch. Speaking of behavior changes, Sans seemed to get more protective over you after the friendship. both of them had in their different ways, therefore you always hide your cut and bruises for them, not wanting to be a bother.

Turning your good side toward you tried as fast you could to get to the stairs and quickly duck into the bathroom. "It's nothing, just some dirt" You voice held a bit of worry and panic. "I'll go and wash it of." hurrying and getting to the stairs only for a hand to grasp your arm. turning the damaged side away from him again and looked into his intense stare. he was never happy when he noticed you were hurt. becoming quite protective and clingy until you convinced him you were fine witched could take quite some time. Papyrus only held you on house arrest until the wound was healed.

"Don't lie to me doll" his voice was harsh, but not in a threatening way, more like he was speaking to a child. After a small staring contest you finally turned your damaged side toward him so he could examine it. Sans quickly scanned your side before dragging you off to the bathroom. seating you on the toilet as he dug a first aid kit out from a cabin. "Lift up your shirt" He turned toward you with a rag in his hand that. A slight blush and a bit grumpy he won you turned your shirt up right under your chest.

Sans expression grinned as he looked at the open wound. it was a pretty big and deep cut. you were amazed you hadn't passed out from blood loss, but you would be lying if you said you weren't a tiny bit tipsy. Sans hand quickly pressed the rag to the wound and a hiss escaped you. retreating only a few second Sans gently placed the rag back. dabbing it around while trying to have pressure on the wound. "Who did this" his voice was threatening, but not toward you. "Just some monsters from waterfall..." not wanting to describe you attacker, knowing Sans would go after them made the monster in question let out a low growl. keeping the rag in place with his magic made it easier to was up the dry blood and getting the wound bandaged.

He didn't get the chance to begin before something caught his attention. he ran his hand carefully over your stomach, fingers tracing the multiple scars you had gotten over the year living down her. "who did you get this scars sweetheart?" his voice was calm as he whisper the words out. like he didn't expect to find this many scars on you. keeping your mouth shut only made him ask once more. knowing he wouldn't give inn before he got an answer you gave inn. "From the underground. I can't tell you which monster made witch scare, I do believe the longest one was made by your brother, but their all from mostly every monster I have meet to this points." you looked at your cut, blood seeping out from the rag "Guess I got one more to my collection."

Sans tight smile slowly turns slowly more, and more into an scowl as you told him about the scars. a good amount of them had to be from waterfall, which meant you had hidden all your pain from him. Sans would admit he could get quiet protective when he notes you were hurt to weak. He couldn't help it when he cared as much as he did. It never was the plan for him to fall for you. Life is weird in ways like that. Before he could think he hugged you close. "Don't ever hide your pain again. let me help you heal. it's-it's the last thing I can do after how much of an asshole I was to you before you fought my brother, and for the tiny period after."

Y/n looked shocked down at the skeleton that was hugging her, she did not expect this. Believing he would have an angry freak out and swear to get everyone, except his brother, back. If that was the outcome it would have been quite a hassle to keep him from killing someone. you slowly began hugging him back and letting out a sigh of relief. "I will Sans, promise"

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