Undertale Au x Reader

Sans x Deaf!Reader

. I do not own sans, undertale or you!

Have fun!
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You tossed and turned on the green moss colored couch with a whine. You just couldn't sleep there were these blue lights blaring from Sans bedroom which made it hard to sleep, the lights crept under his door up the cracks of the door frame escaping down onto the glossy wooden floors. You had now dark bags under your (e/c) eyes you needed sleep you did. But, how would you get anything like this? Sitting up you threw your legs over the couch onto the floor pushing yourself up from the couch arm you had set your hand previously on before.

What's wrong with Sans was he playing that music again?

You thought to yourself as your hum sounded loud to someone else if they had been in the room to you it was so silent. Making your way upstairs you made it into the bathroom yawning staring at yourself in the bathroom mirror, you looked obviously tired this was the fifth night Sans had kept you up looking at the clock on the wall it was well past one in the morning.

What was he doing?

You pressed your hands onto your white blouse slipping it off as you stared at your body in the mirror, you had many scars that were slinking your body like a mouse trap. Or to simply put it an endless maze or horrors, and bad memories. The blue flickered for a moment before it faded you thought it would be over so you let your pants drop to the floor as you pulled the shower curtain back you stepped in turning the shower head on warm. The hot liquid running over every crevice of your entire body as you let out a moan of relief. It hadn't been that long since you last had a shower if fact you'd had one a few hours earlier though it just helped you sleep this way. Leaning your forehead on the wall you saw the curtain be ripped off the metal hooks that held it loosely in place. Turning around to look at who did it you were left unable to move. Feeling hands snake their way around your waist as a head nuzzled into your lower back right above your tailbone a hot blush erupted onto your soft (s/c) cheeks. You felt a vibration on your back he must be talking, but what was he saying? Looking down you saw he was shaking, he was holding onto you so tightly you could only feel pity for Sans. Turning around you kneeled down a blue escaped onto his cheekbones as he tried to avoid his perverse glances down at your regions.

'Sans' you mouthed to him which made his tears slow only slightly, 'Whats wrong sweetheart?' it was true you two only started dating you knew he had nightmares, but you didn't know when. You never knew that the lights and, the constant vibrations were him pleading, begging for help. If you could only hear your lover you could help him. Gently placing your soft petite hand onto his cheekbones you gave a patient smile as you sat in the tub ushering him to sit in your lap as you pet his skull shushing him. You couldn't understand what he said unless he used sign language he seemed to be into much of a fragile state to do that. As you watched his teeth move fast you only somehow made out one word.

Nightmare.

You shushed him kissing his skull telling him everything would be fine, that he didn't have to worry that's when he roughly grabbed your shoulders as if yelling at you. Then he broke back down sobbing shaking in your arms uncontrollably. You hated seeing him like this it broke your heart seeing him like this. Getting up baren you carried him like an infant to his bed dusting off any spare ketchup bottles he's used getting in bed with him. Pressing his face into your breasts you hummed a gentle tune though you tried to hum for him afraid your voice sounded bad you cut the song short only to see him shake making you sing again. Making him relax.

It was probably four in the morning when you woke up rubbing your eyes, your nipples were swollen from the cold air, and you had goosebumps. But, in the corner of your eye, you saw Sans curled up on the floor crying rocking himself back, and forth. Throwing the blankets off you hurried over shaking him to his senses he seemed to snap out of the trance he was in clinging to you like a lifeline. You heard the vibrations in your chest assuming he was muttering your name you pet his skull to reassure him everything was fine. Everything wasn't fine now you were worried, scared even about this. Was he really going to be alright? Were the nightmares ever going to stop? He nuzzled into you once more trying to plead for you to sing your lullaby to which you did just for him

La la la
La la
La

You kept singing before humming turned to words

A dear skeleton of mine do not fear or fret.

You kissed the back of his cranium.

For your dreams mean nothing dear oh lover of mine.

Your voice cracked as you rubbed your throat not used to using it so much.

Sleep dear small monster of mine

Looking down you saw Sans eyes began to close slightly as he relaxed.

Oh my dear monster of mine, do not fret or fear dear oh dear lover of mine.

His grip loosened as he began to fall asleep in your arms.

Fall in endless slumber my dear monster of mine.

You began to feel sore from using it too much.

Sleep dear lover of mine let the moon kiss your tender cheeks tonight my little dove.

You breathed as you rubbed your now raw throat.

Do not fret my dear the nightmares they fade.

Tears slightly fell as the pain began to spring onto you.

For soon the day shall bring forth a new.

You sigh realizing the song is coming to an end as you glance down as your boyfriend.

Sleep little monster no more fears or demons come to haunt you.

You smile as you cradle him fighting back the tears you kiss his forehead.

For let, the stars give you dreams tonight my dear courageous little monster.

You sang softly now your voice hurting less.

Goodnight little monster, let us talk again real soon.

Soon you yourself were asleep holding onto Sans tightly he was also your lifeline.