AU Sans x Reader One-shot book

Epic!Sans x Scientist!Reader

        I had a few family things to take care of, otherwise I would have published this sooner. I know some of you will say that I need to value real life over this story and that you all could wait, BUT I found this refreshing and it brought happiness to me. It kinda relieved me to write so meh! Enjoy, this is another request oneshot!!! :D

​​​​​​[Warning: protective Sans, overworking, unhealthy sleep habits]

*******

        You stood next to Mettaton observing him pour bright liquids together. He gently tipped the beaker, the blue liquid mixing like a lava lamp in the orange liquid. Odd. You scribbled down some notes on your paper, your tongue sticking out just slightly.

        You were deep in thought, tapping the end of the pencil on your chin.
        " 'Sup Bruhs."
        You jump, nearly dropping your clipboard. You placed your hand on your chest, gripping the (f/c) sweater. The thumping of your heart was speeding significantly. It almost hurt. You sigh out. Mettaton snorted at you. You were always a scaredy cat, even when you saw it coming. You playfully glare at Mettaton.
        "Woah, bruh, I know I'm awesome, but try to stay calm." You blush as he comes to stand next to you.
        You admired him very much. He was, after all, your teacher/idol. Him and Mettaton were both great scientists, along with Alphys. You would be great someday, too. That is, if you didn't constantly brake the inventions you made right as you finished them. Along with being a scaredy cat, you were also very clumsy. You could trip over thin air, and you constantly did. Your old monster friends thought you were a hazard, and that you'd never make it to "the epic Sans'" abilities, which was true, he was the best (and he liked the sexiest in the lab coat), but that doesn't mean you shouldn't try. After that, you developed a guard, a think wall if insecurities. They usually didn't get in the way of work so toy never fixed them. Every once in a which they got you down.
        "Hey, Sans." Mettaton greets, safely putting the experiment away.
        You smile at him, a fond grin earned in reply. He slips the clipboard out of your still shocked hands, going over your notes. You blink, then the clipboard comes down to bonk your forehead.        "Great job, bruh."
        You smile brightly, bidding the two goodbye as they seemed to need to talk about important underground kingdom work. Turning around, you head for your experiment. Alphys and you were making another robot, but a robot that brought all of the scientists drinks at the right time. Currently, you hadn't tripped over it, nor damaged it. You took extra precaution since this was Alphys' project, too.
        You were really determined to finish something and prove this people wrong. Alphys had worked with you on it for hours, but she was tired, so she hit the hay. Without knowing you worked on it straight into the night and in the morning you happily smile, tears almost falling from your eyes as you turned it on.
        "Hello, how may I help you." It's warbled voice reminded you of a softer Mettaton. Suddenly the bags under your eyes didn't matter, the coffee cup (it read 'coolest lab partner' on it) filled with (f/d) had left removable stains on the work table but that didn't matter to you, nor your tossed lab coat on the chair you never sat in once that night.
        You were extremely tired, though. Your vision blurred when you excitedly jumped up and down, so you braced yourself on the table. "Woah..." You close your eyes, keeping your breathing steady. Great, last thing you needed was to pass out with no one around. Sometimes you worked too hard. You slowly shuffle to your lab coat, slipping your arms into the jacket. You wanted to get home as soon as possible.
        Your eyes began to droop, and you shake your head gently. Staying awake was your best option at the moment, not that you could control how quickly you fell asleep. You yawn, stifling it with the sleeve of your lab coat, stumbling to the elevator.
        "...Just ... a little farther." You started to see little stars, your body seeming weightless as you fell forward into the elevator. (E/c) eyes widened despite the slow loss of vision. You slammed your eyes closed, waiting for the cool, smooth metal of the lift pressed against your face.
        "Woah there, bruh." Your tired body missed the soft ding the elevator made once the doors opened. Something long and bony held you steady by supporting you with their arm.
        You crack your eyes open, your cheek leaning on a hard clavicle. The one and only, 'epic', as he called himself, Sans was holding your exhausted body. His arms were wrapped around your waist, firmly holding you up.
        "Now why is my favorite scientist practically falling over from exhaustion? Hmmm? I thought we told you to stop working yourself to the bone." His grin turns to a frown as he guided you back into your lab area, sitting you down in a chair.
        You groan. You were actually proud of yourself by finishing your 'first' project, but not about worrying Sans. He leaned against the back of your chair, leaning close to your face. Your head bobbed slightly. You (cutely, according to Sans) spring back up to keep paying attention to him.
        He hooks a finger under your chin to keep your head from falling forward. He turned your face from side to side examining your dark, bruising bags under your eyes. Your usually bright, (e/c) eyes were clouded with sleep and covered by your lids.
        He snapped his bones, a sharp, clacking resonating in the empty lab. You don't respond, (f/c) sleeved hands folded in your lap. He chuckles, slipping off his hooded cloak leaving him in his lab coat and regular attire. He takes the cloak and gently drapes if over your sleeping form.
        He skele-kisses your temple, taking once last look at your snoozing face, then turns around to return his attention to his inventions.

*******

Bonus:

        Mettaton stared at you with a perplexed, questioning gaze as you were sleeping in the chair, snuggling into a purple jacket. Sans had moved you to where ever he was while you were asleep to keep an eye on you.
        "(Y/--." Mettaton stopped short of saying your name.
        "Don't. Wake. Her. Up, Bruh."
        His eye flared a dark purple, pearly white and dark purple bones materializing around Mettaton's head. Not once did Sans turn away from his work.
        Mettaton gulped in fear, despite the fact that he had no reason to swallow.