Sans AU One-Shots

Bill || devil.

Pairing: GravityTale/UnderFalls Sans x Reader
Prompt: You fall on hard times so Bill pays you a visit expecting some poor sap that'll foolishly fail to read the fine print, but instead he meets you. And you, darling, are very intriguing...
Type: enemies -> lovers
Length: 7.9k words
Background: Another lesser-known Sans so I'll give you the rundown as I know it: Bill Sans is a combination of Sans and Bill Cipher from Gravity Falls, and it goes Bill possessed Sans after they made a deal due to Sans' desperation (like how Bill possess Dipper in the show). Sans has the abilities of Bill which would include the ability to make deals, see a small ways into the future, mess with time a little bit, and change the very fabric of reality as he sees fit, but if you've seen Gravity Falls, you already know what Bill Cipher can do (if you don't, basically think of him as a trickster god that's bound to the confines of the deal he forms - like a deal with the devil, where he does what he says but not in the way you thought he would).
Notes: Information on Bill Sans was scarce so lmk if I missed something. I assumed his personality would mostly be Bill's with a couple Sans characteristics so that's how I wrote him. | Requested by the lovely Lazy_Geek

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You almost collapsed to the floor as soon as you were inside your apartment, but you just about kept yourself upright as you shut the front door, telling yourself you weren't so weak as to physically collapse under the weight of the news you received, but your legs and hands were shaking, your lips were trembling, and you were on the verge of giving up and crashing to the floor as you walked towards your bedroom. You kept repeating you were strong in your mind, playing it on loop like that would somehow cease the tremors in your limbs, but all it sounded like was white noise as you pushed the door to your bedroom open. Two steps later you fell onto your bed, burying your face in your pillow as you choked back a sob.

You'd never been fired before - they said they were 'letting you go' but that was company jargon for firing you - and you thought you were a great employee so you couldn't understand why they picked you. You showed up on time every day, ready to do your job with a smile even if it was a slog to get through, you were sociable with everyone even if you preferred to keep to yourself, and you never rose a complaint even when your bosses overworked you. So why did this have to happen? You thought you were going to be at that company until you retired but your entire life just got upended and all you got was two weeks of severance pay. They couldn't even tell you in person - a half-hearted apology and termination notice in an email was all your years of service were worth.

"My, that's quite the waterworks!" A sudden voice made you pull your head from the pillow, confusion clouding your foggy mind when you spied a skeleton floating in the air next to the bed. One leg was crossed over the other as a top hat floated above his skull, which had a hood up over it. The coattails of his suit hung under him as he twirled a cane in his hand, tapping the gold-capped tip against his shiny black shoes. "Hey kid, how's it hanging?" He tilted in the air, his teeth widening in a comically large grin so you knew he was making a joke.

"What...?" you breathed, sitting up as you looked at the stranger with confusion. He almost appeared like an apparition - at least you assumed mental apparitions were able to float - but he wasn't see-through like a ghost and you were much too scared to reach out and touch him to see if he was real.

"Allow me to introduce myself: I'm Bill Sans, but you can call me Bill." He held out his hand but you kept your hands to yourself, confusion mixing with distrust on your face, and he let out a chuckle. "Ah, the suspicious type." He rested his hand back on the head of his cane, smile still wide. "You're probably wondering what I'm doing here. I could sense your bad situation and I came to give you a hand." He held up a hand, palm up, and winked a socket at you. "I help sad saps all the time, it's kinda my thing, and you look like you're in a bad situation: fired from a career like that is bad luck, kiddo."