Requested by: vania555
Hope chu enjoy~!
WARNING: HARSH LANGUAGE

"OH SO IT'S MY FUCKING FAULT?!" You yelled, at your frenemy, Error Sans. "YEaH! BeCaUsE oF yOU wE cOuLd HaVe dIed! It'S FuCkInG fRuStrAtiNg!" Error yells, at you. "SO FUCKING WHAT?! YOU ALWAYS LEAVE WHEN WE BATTLE THE UNDERSWAP BROTHERS!" You yell back at him. Error blushes, but yells back, "WhAt doEs ThAt hAve tO dO wItH thIs aRgUmEnT?!" Error then yells back, as you glare at him.

You and Error have been Frenemies for who knows how long. You both were viruses, and you both agree on deleting every AU, except Undertale. You met him in the Underfell AU, and it pissed you off to see him killing your prey. But.... It was love at first sight. You fell in love with him, but you avoid showing your feelings towards him. You knew it wouldn't work out, since both of you would always shout and fight. You kept it that way, but you never realized that Error has the same feeling towards you as well...

Well, right now? You were both arguing about, well... Everything that happened just a few minutes ago...

~Flashback~

You and Error Sans, arrived at the Echofell AU. You wanted to take a look around first, by yourself, but Error wouldn't want you to go alone. "Fuck off, Error. I can take care of myself." You scoffed, as you walked on your own, but before you could, Error used his blue strings, and wrapped around your (F/C) SOUL. "ERROR! LET ME GO!!! YOU ASSHOLE!" You yelled, as you struggled from his strings. "LiStEn! THe SaNs iN tHiS AU, Is StRoNgEr tHan AnY SaNs, wE'vE eVeR bAtTlED. iF i WeRe yOu, I wOulDn't lEt hIm SeE mE! hE'S noT tHe UsuAl SaNs tHat yOu WoUlD jUsT mEdDle wItH!" Error warns, as he pulls on the strings, and drags you with him. "FUCK OFF, ERROR! YOU'RE SUCH AN ASSHOLE!" You yelled, as he keeps cursing under his breath.

Although... you have your own tricks up your sleeves.

Your hands glitched, and they glitched into a knife. You cut the strings, and made a run for it. "(Y/N)! CoMe BaCk HeRe!" Error yells, as he launches his strings at you, but you easily blocked them using your glitched knife. Error was out of your sight. He went to look for you, but it was a good thing that you were good at hiding, and glitching. You could glitch into the walls, and defy the physics of gravity. Anyways, you arrived at a place of golden flowers. You weren't planning to do anything bad.... yet. You just sat there, and adored the flowers. You never bothered to look around in the other AU's, because Error would always destroy it instantly.

You plucked a flower, and brought it up near your face. You touched the petals, making them glitch a little. You frowned at the sight of this. You couldn't even touch it, without ruining it's perfect image. You sighed, and you were on the verge of tears. Then suddenly, "Uhm... Miss...?" a child's voice asked. You turned around to see a child about 6 or 7 years old. They had short brown hair, and they wore a blue and pink striped sweater, as well as a pair of brown shorts, and brown boots. "Is something the matter, Miss...?" They ask, and tilt their head in curiosity. You wipe your eyes, and averted your gaze from them. "I'm fine." You replied, as you looked down, and touched one of the flowers, but they end up glitching, and ruined.

You sigh, and you try to resist yourself from crying. The child then sits down next to you, and starts to pluck a bunch of flowers. You raised an eyebrow, as they start to bend the flower stems. You watch them do it, as they began to form it's shape. "Done!" They exclaim, as they raise up the golden flower crown. "That's really pretty, kid." You said, as they look at you with a smile. You tilt your head in confusion, and the kid lets out a giggle. They then place the flower crown on your head, and they smile. "There! A beautiful crown, for a beautiful lady like you!" They exclaim, as you blush. "I'm not that pretty, kid. Heck, I'm not even as close to beautiful... I'm just an ugly glitch" You whispered, as they tilt their head in confusion.

They put their hands on your cheeks. They stare at your one eye, because the other was covered with glitches. They smile, and said, "Don't ever say, you're ugly! You are beautiful, no matter what you say!" They exclaim, as your eye widen. The kid smiles at you, while your facial expression calms down. You began to let a smile, crept up on your lips.

You smiled at the kid, and they gasp. You tilt your head in confusion. "See? You're really beautiful, with that smile on your face!" They exclaim, as you smile at them again. "So, what's your name? My name is (Y/N)." You said to them. "Just call me Frisk." They say, as you smile, and nod.  

Then suddenly, "Junior! Stay away from that woman!" A male voice yells, as the Frisk averted their eyes to see a skeleton, wearing a black jacket with fur on the hood, a red turtleneck, a pair of black jeans, and some black combat boot. He had sharp teeth, and blood red eyes. Frisk stands up, and tilts their head in confusion. The monster runs in and carries Frisk. He was holding a bone, and was aiming it at you. You dodged it, and smiled. "Who are you?! And what are you doing in this AU?! You don't belong here!" He yells, as he points the sharp end of the bone at you.

'This must be the Sans that Error was talking about... I've gotta say, he's quite handsome...' You thought, as your hand glitched into a knife again. "Sans? is everything alright...?" a female voice asks. You averted your attention to the voice, it was a girl with short black hair, and a red long-sleeved turtleneck. "Frisk! stay back!" Sans yells, as the female stands still on her spot, while she glares at you.  You grin and, your knife starts to glow. "So this is the Sans and the Frisk of this AU.... I can see that that's your child, Frisk Jr. I presume?" You said, as Frisk's eyes widened, and Sans grits his teeth.

You began to charge at Sans, but he dodged it, of course, he wouldn't just stand there. So you decided to go for Frisk. You grin mischievously at her, and you charge at her. "FRISK!!!" Sans yells, as he tries to catch up with you. You were face to face with her, and your knife was aiming at her. You saw the fear on her face. Your grin fades, and your knife disappears. You've never had this feeling before....

You look behind her, and saw Error raising his hand, and shooting out the blue strings. "Look out!" You yell, as you push Frisk out of the way, and block the strings. Error came out of the forest, and was surprised. "(Y/N)?! WhAt On EaRtH ArE YoU DoInG?!" Error yells, as you cut the strings. "Sorry, Error." You mumbled, and took a glance at Sans, and Frisk's Family.

"Don't take this the wrong way." You say, as you teleported in front of Error, and dragged him back into the white void.

~End of Flashback~

That's what basically happened, and, Error wasn't really happy about it, and that's what started the whole argument thing. "WhY dIdN't YoU lEt Me KiLl hEr?! It WaS tHe PerFeCT chAnCE!" Error yelled, as you crossed your arms, and averted you gaze from him. "WHY DIDN'T YOU STOP ME FROM STOPPING YOU?! YOU'RE LIKE ALOT STROnGER THAN ME, YET YOU LET ME DO THIS TO YOU?!" you yelled, in defense. "WHat KiNd Of eXCuSe Is tHAt?! JuSt TeLl Me tHe fUcKiNg tRuTh aLrEAdy!" Error yells back. You stay silent and crossed your arms. Error growls, and grabs you by the collar of your sweater. "TeLl Me. RiGhT FuCkInG NoW." Error demanded, as you growled. You glare at him, and shoved him. "IF I TOLD YOU, YOU WOULDN'T EVEN UNDERSTAND, BECAUSE YOU DON'T HAVE A FAMILY! YOU DIDN'T EVEN HAVE ONE FROM THE START!" you yelled, as you created a portal, to another AU, to have a time away from Error. You entered the Undertale AU, thinking to yourself in the waterfalls.

As you left, Error stood in the empty white void, alone. He thought about what you said, "YOU DIDN'T HAVE EVEN HAVE ONE FROM THE START!". Error summons out his blue, glitched, SOUL and stares at it. "YoU dOn'T KnOw aNytHinG...." Error whispers, as he clutches his SOUL, and grits his teeth. "WhY wAs i eVeN, ANgRY....? ShE's ThE lOvE Of My LiFe.... YeT i TrEaT HeR LiKe tHiS...? I'm SuCh aN IdIoT..." Error mumbles to himself. His SOUL disappears, and he creates a portal to the Undertale AU.

He was greeted by Napstablook, and Yumeko, who was sipping on a smoothie. (I had to :3). "YuMeKo. WhErE iS (Y/N)?" Error asks, as Yumeko sips on her smoothie. Yumeko swallows the drink, "I believe I saw her at the Crystal Ponds, and Echo Flowers." Yumeko answers, as Error says thanks, and starts to walk. "Error!Sans walking, and thanking us....? That's never a good sign...." Napstablook says, as Yumeko nods. 

Error heads to the area, where you were. He sees you sitting, your feet on the water, while you were staring at the "stars" in the ceiling. "He just won't understand.... He won't understand how it feels to lose a family..." You whispered, as tears streamed down your cheeks. Error gulps, and silently approaches you. You whipped your head to face him. He saw tears in your eyes. "What? You've come here to laugh at how pathetic, I am?" You growled, as Error sighs. "No..." Error says, as you raise an eyebrow. You stood up, and crossed your arms. "What are you doing here, Error?" You asked, in an angry tone. 

You and Error, stood in silence for a couple of minutes. "Well...? I'm waiting, Error." You said, as you wiped some tears that were still in your eyes. Error takes a deep breath, and did something unexpected. He hugged you. This took you by surprise. Your yelped, as he hugged you tighter. "i'M sORry... I wAs jUsT AnGrY.... ThE sIgHt Of ThEm bEiNg A fAmIlY iS tEaRiNg mE aPaRt..." He paused, as you felt something trail down his cheeks. It was real tears. You stayed silent, as he sobbed. "I wAs JeAlOuS.... I fElT aLoNe... I mIsS mY AU.... I MisS mY FaMiLy.... i dIdn'T HaVe AnYoNe... bEfOrE I mEt yOu..." He says, as he pulls away from the hug and looks at you. He places his hand on your cheek, and caresses it. You placed your hand over his hand on your cheek, and stared at his tearful eyes. "YoU.... cHaNgEd My LiFe... i FeLl In LoVe At FiRsT SiGhT...." Error admits, as you silently gasped. Error leans forward, and kisses you.

Your eyes widened, and your body just froze. The kiss was short, you weren't able to kiss back. He looks at you, with a weak smile. "I knOw ThAt It WoN't WoRk OuT bEtWeEn Us.... SiNcE We aLwAyS FiGhT... pLeASe JuSt KnOw ThAt I lO- umph?!" before Error could finish, you suddenly kissed him. It was longer kiss. Error soon calms down, and kisses back. He wraps his arms around your waist, while you wrap his around his nape.

You pulled away, and rested your hand on his cheek, wiping away his tears. "I love you too, Asshole." You said, with a following giggle. Error smiles, and carries you by the waist, and twirls you around. "tHaNk YoU, (Y/N)...." Error whispers, as he rests his head on your chest, while you hugged his head.

Error sits you both down, you rest on his lap, facing him, while he wraps his arms protectively around you. You were getting sleepy by the minute, but before you drifted into dreamland, you gave Error a kiss on the forehead, and whispered, 

"I'm your family now, Error. You'll never be alone..." 

~End~

Hope you guys enjoyed!
Next oneshot shall be: Scientist!Sans x Reader,
requested by: TheShadowWithAPeN

See You guys~! Luv yah, Neko-chans~!

~Yumeko-senpai