Undertale Oneshots

Sans x Reader Switched!?

It is not what you think it will be like but I hope it is good.
You and sans have been dating for a few weeks now.

[EDITED]

{If there is any errors please tell me!}

~~~~~~~~~~~~~~~~~~~~~~~~~

Your POV

Me and Sans are helping Alphys with a project she what's to try out, she won't tell what it will do just that it won't kill us and it didn't help that it was 10pm and I want to go to bed (if you can stay up longer like me just pretend you can't here) "K s-stand over t-there" she tell. Sans and I went over to where she pointed and stood there. "K this won't be painful. . hopefully" "WHAT?!" I tried to ask but she already started the machine. After it was done I felt funny and dizzy. "Wh-what why didn't it work!" She said confused. "Sorry it didn't work *yawn* alphys, but I need to go to sleep now bye" "*sigh* k s-see you l-later" I leave well holding Sans hand. He picks me up and teleports into his room, he lays me down and crawls next to me and falls asleep.

The next morning I wake up feeling really funny. I sit up I can tell sans is still asleep cause I can feel him next to me. I stand up and walk down stares into the kitchen. I am usually up before papyrus is so I get bowl of cereal to eat. I am sitting at the table when papyrus walks in. "OH! HELLO SANS I WAS NOT EXPECTING YOU TO BE UP THIS EARLY! DID YOU SLEEP WELL?" when he said sans I was confused beyond anything, I looked nothing like Sans. "Uh? Papyrus I think you have something in you eye- socket I am not Sans" I said, but my voice sounded really low to be mine. Papyrus now was looking at me funny, "NO I DO NOT. AND YOU ARE MOST DEFINITELY ARE SANS! YOU LOOK AND SOUND JUST LIKE HIM! SEE" he handed me a hand mirror, I looked into it and saw sans! I dropped the mirror and run to Sans's room, flinging it open and walking over to mine and Sans's bed. I slowly pulled the covers off the person to not wake them up, when I did I saw myself! I jumped back from shock waking up 'me' in the process. I looked at me with a very confused and scared look. "What the fuck, who are you! and why do you look like me!" I yelled. "OK Sans, calm down it is me (y/n), I do not know how this happened, but I do know that you look like me and I look like you right now" I replied to Sans. "I do not believe you are (y/n) if you are prove it". I thought for a second "we have been dating for 3 weeks now and I am the only one who knows about your depression about the resets, and look in a mirror" I replied. He got up and looked in a mirror that he had on his night stand and screamed. "Wow. Is it really that bad to be me?" I said pouting. He looked at me with a shocked expression, "NO! I did-" "I am joking" I said well laughing. He then started pouting, "aww is someone upset?~" he then blushed. I laughed again. I got up and started out the door. "Where are you going! I do not what you ruining my name!" "I am going to see alphys to see if she can help! And seeing your bill at Grillby's me being you would most likely help!" I retorted. I walked out the door but called back to papyrus "hey pap me and (y/n) are going to see alphys see you later!" "GOODBYE BROTHER! HAVE A GOOD DAY!". "Why did you say it like that? And not tell him the truth?" "Well it would take a long time to explain and to understand" "oh. . . hey why don't you teleport us there?" He asked. "Are you willing to teach me how?" "...No..." "Well that's why".

~~~Time skip to alphys~~~

We walked in and looked for alphys. When we found her she was watching anime. "Oh! H-hay S-Sans and (y/n) w-what's up?" "The ceiling, and we have a problem" I said. "what is it?" She replied pausing the anime. "Well we woke up not in the right body's for starters" Sans said. "What?".

~~~After explaining what happened~~~

"Wow, well what was the other thing?", "I am a girl now!" "Well at lest you put some meat on those bones" I said snickering. "Yeah, Well now you have none on yours!" Sans retorted, I just shrugged replying with "I needed to lose a few pounds anyway" patting my nonexistent tummy. Sans just rolled his eyes(well yours but you understand) "ha you finally can roll your eyes, saying you never had any tell now" I joked, alphys was trying not to laugh at that so she looked away. "W-well I do not h-have the stuff to turn you b-back r-right now but I will let you k-know when I do" always said to us. "K, well I am starving I what to go to Grillby's, see you alphys" I said,

"b-bye". I walked out and headed for Grillby's. Once we were there I sat at Sans's usual spot so no one would question. Sans ordered for us he got two ketchups one for me and one for him with two burgers. We were almost done when this dog comes up to sans and starts flirting with him thinking it is me. Honestly I was getting fucking mad as hell! And everyone else knew it to cause they are looking at me terrified. I could tell sans's left eye was lit up as I turned toward the dog, out of rage I went to grab him, he then was surrounded by blue light. I smirked and through him around and out the door. I was SO MAD right now, I turned toward sans and grabbed him and sat him on my lap. "Mine" I said angered, Sans just laughed "jealous much?~". I growled. "Whatever, I just don't like others flirting with my boyfriend in my body, it's weird" "you now what is weird you learning how to use my powers within 4 seconds" he said. "Yeah I know, well let's go I am tired"

~~~time skip a few weeks because nothing is happening~~~

I was watching TV when my phone started to ring. "Heellllooo?" "H-hay s-sa-(y/n)! Uh. I h-have the stuff to switch you and Sans back" "REALLY! GREAT! We will be right over!" I hung up. "SANS! WE ARE GOING TO ALPHYS'S!" "K!"

~~~time skip to alphys's~~~

We walk in and are immediately given a serum "drink this, both of you". I hesitated but did anyway, after we were done we both fell unconscious.

I woke up on a bed in alphy's lab. Sitting up I look around then I remember what happened and looked at my hands and there not Sans's! I looked for sans and saw him sleeping next to me I crawl over and kiss his non- existent nose, he somehow scrunched up the place where it would be, I giggle at how cute he is. He opened his eyes a little, then a small smirk appears on his face, he pulls me closer and uses me as a pillow. Since I can't move I wrap my arms around him and fell back asleep. Weeks passed and me and Sans never helped alphys with her experiments again, to not have something bad happen.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

There this is no one requested this one but I just had to do it,  I had nothing else to do. Hope you enjoyed, bye! (1293 words)

Comment, vote, request
Have a nice day!~