Au Sans x Reader Oneshots

CATastrophy- Sans x Reader

(I guess I'll only name the chapter if I have a name for it..)

Your Pov

Sans and I have been dating for over a year, we were dating since we were in the underground, now we're on the surface, me, Sans and Papyrus live in the same house, Sans works as a comedian, Papyrus is a now a chef since he got better at cooking, I decided to work with Alphys in her lab on the surface, sometimes I help her fix things, other times I'm her 'experiment', I just drink a bunch of potions to test effects, I was going again today, Alphys said that she had a new potion made for me to try out, I saw Sans on the couch and gave him a quick kiss on his cheekbone, he smiled lazily and waved, knowing I'm going to Alphys', I headed out, it was walking distance from where I lived, I was pretty nervous, unlike other potions she didn't tell me what this one was, I arrived at the lab and entered to see Alphys working on something. "Alphys, I'm here." I say causing her to snap out of her work. "O-oh Y/n, y-you're here, wait a m-moment." She said before walking into a room, she comes back out with a brown colored potion, it looked like chocolate milk. "H-here." She handed me the potion. "What does it do?" I ask skeptically. "N-nothing bad, I p-promise! Just d-drink it." She says, I look at her for a while before shrugging and drinking it down, it tasted like chocolate milk, I stay still for a while. "Uhm, nothing happened." I say. "Y-yes, allow me to e-explain, you will s-still be human but I have given you a p-potion to act like a c-cat." She explains. "What?! Oh God, cats are assholes!" I yell (Not all of them are, but from my experience with cats, they're assholes to me, yes, I'm a cat lover so put your pitchforks down) "C-calm down Y/n." She says, I take a moment and breathe. "How long will this last?" I ask, sweat started forming on her head. "A-a week." She muttered, I groaned. "Great.." I say. After a while, I got to leave, she gave me the week off because of it, how am I gonna tell Sans that? Oh wait, I'm not. I go to the grocery store before going home, I bought a 2L bottle of milk because I felt like it, it's obviously the stupid potion that's making me feel for milk, I walk home and open the door, I go into the kitchen to put down my milk and I saw Sans leaning on the counter with a bottle of ketchup in his hand. "Hey Y/n, you're back early." He says, his orbs land on my hand with the milk. "Uh Y/n, We already have milk." He said. "The more the merrier." I say before putting the milk in the fridge, he gave me a confused expression but shrugged it off, I suddenly felt really lazy. "I think I'm gonna go take a nap." I say before walking out of the kitchen and throwing myself on the couch and passing out immediately, apparently a nap turned into sleep cause when I woke up, it was dark, oh well, I want milk so I went for milk, I sat on the counter with the entire bottle in my hands as I start drinking it, after a couple of minutes I hear a throat clear, I look over at the noise with my mouth full of milk to see Sans, I slowly swallow the milk and laugh nervously. "Uh... Hi Sans." I say. "So... You're up at 3 in the morning, drinking milk, you okay?" He asks. "There's nothing wrong with drinking milk." I say, he points at the bottle, I look at it to realize I drank ¾ of the bottle. "Not that much." He says. "I was thirsty.." I say and continue drinking the milk until the bottle was empty. "Okay, now I'm ready to go back to sleep." I say before going back to the couch. "Gonna leave me all bonely again?" I hear him ask, we normally sleep in the same room. "You can stay out here if you want cause my ass is already on the couch and I ain't movin." I say stubbornly, he chuckles. "Okay then sweetie, I'll bring down a blanket." He said before going upstairs, he came back down after a while and got on the couch with me, I cuddled up to him and he threw the blanket over us, we then fell asleep, wrapped in each other's arms.

~Timeskip~ (Still your Pov)

It's been 3 days, only 4 more to go, but just my luck, Sans is starting to get suspicious, at first he thought it was a human thing but then Frisk reassured him that it's not the case, damn you Frisk, I act sassy, I drink all the milk in the fridge and I even hissed a few times, right now we're all in the kitchen, Papyrus is cooking and we were all just talking about random stuff, I zoned out after a while, there was a water bottle on the counter, I just kept staring at it, I just feel the strong urge to hit it and make it fall on the floor, I did just that, the bottle fell down and made the loudest ass noise like wtf? I realize Sans and Papyrus just staring at me, I laughed nervously, they went back to talking but then another thing caught my eye, a bowl, heck, I pushed that off the counter as well, it wasn't glass so. After a while I had pushed everything off the counter, I have never in my life felt so satisfied, wait, there's one more item, a glass, Sans knew it was gonna happen and dragged me out of the kitchen before I could swat it, now I'm unsatisfied, I pouted and went into our shared bedroom to take a nap, Sans watched me all the way. I woke up to see Sans sleeping next to me, that means it has to be morning, I went to the kitchen and glanced at the clock and yep, it was 3am, I went to the fridge to get something to eat, what's that? It smells amazing, like meat, they looked like mini cookies shaped like bones (*Snort* XD) , I start eating them, they taste delicious. After a while of eating with Toby since he wanted some of the snack as well, I heard a throat clear, I turned to the noise with a piece of the cookie hanging out the side of my mouth, it was Sans, he still looked tired but he looked confused also. "Y/n what are you doing." He asks, sort of. "Er..... Eating?" I say after finishing the cookie. "Those are Toby's dog treats Y/n." He states. "Ohhh, that explains why Toby wants them." I mumble, Sans sighs and comes up to me, taking the bag of treats before I could eat another one, I shrug and skip out of the kitchen to go back to sleep.

Another Timeskip (Still your pov)

2 more days to go! But something's wrong, I'm craving something else, bones. That's a problem, I live with two skeletons, well then I guess I'm going to have to avoid them until- "Mornin' Y/n-" "AHHHH!" I screamed when I heard Sans' voice and scrambled out of the house, hearing him yell my name but I noped all the way to Alphys' lab. "ALPHYS!" I yell, getting a yelp and crashing noises in return, then I saw her coming out of her working room or whatever. "Y-yes Y/n?" She asks while holding where her heart would be. "I'm staying here until the potion wares off, the last thing I want to do is have my boyfriend for dinner." I say, she seems to understand and nods. "S-sure! We could w-watch anime! I can invite U-undyne to-" "She's a fish, do you really think it's a good idea to have her near me?" I asked rhetorically, she got what I was saying and just decided we'll watch anime. After a while, my phone started ringing, I pulled it out of my pocket, it was Sans, I just stared at the screen. "A-aren't you gonna answer it?" I hear alphys ask. "And tell him what, that I act like a cat and now I wanna have him on a plate? Hell no." I say and hang up, I also put the phone on silent. "W-why? D-didn't you tell him about the p-potion? H-he'll understand." She says. "That's the thing, I didn't tell him about it, I have no clue why either." I say, Alphys just stares at me. "A-at least text him something, don't l-leave him like a w-worried mess." She says. "You have a point.." I say, then I pick back up my phone, oh my gosh, within that small conversation, I got 12 missed calls and 17 messages, I sigh and write a text saying that I'm fine and stop freaking out.

(S is Sans and Y is you)

S- Y/n? Why'd you run out the house?

S- Why aren't you answering my calls?

S- Are you okay?

S- Y/n you're scaring me

S- At least tell me where you are

S- Y/n answer my call

S- Just say something

S- Text something

S- Anything

S- Just to let me know you're alright

S- Y/n?

S- You're scaring me Y/n

S- Answer please

S- Y/n answer me

S- This isn't funny Y/n

S- Please just send something

S- Or answer my call

Y- Alright, geez, calm down

S- You almost gave me a heart attack!

Y- You don't have a heart

S- I'm going to pretend you didn't say that. Are you hurt?

S- Where are you?

S- Why didn't you answer my calls?

Y- Sans, breathe, I'm fine.

S- Why'd you run out the house?

Y- Uh, it's complicated

S- Still tell me.

Geez is he stubborn, I explain everything, why I've been acting weird for the past few days and everything, he ended up laughing it off, I went back home, it wasn't too hard to refrain from biting his head off since he always made sure I was always full, the other two days went by smoothly.

(Wow, school made this so hard to write out. Anyway 1713  words.)