All Undertale AUs x reader One-Shots

Dont leave me all alone (Uf) sans x reader

Okay flowey gonna be in this story except his evil like ut

Today was just normal day like usual but for some reason you feel something telling you that something bad will happen but you just shrug it off your shoulders. As you got to grillbys you order a burger. You think yourself for a while "I feel like something bad will happen.....eh oh well" when you got your order you starting eat your burger. While you were eating you felt a slight tap on your shoulder you turn around to see sans "oh hi sans" you said while munching on your burger "hey there kiddo what'cha eating there" sans says as he sits next to you as he orders ketchup. "Oh I'm just eat a burger then I'm gonna go out and travel for a bit wanna come?" You asked sans shrugs "nah I'm just gonna stay here for a bit longer you I with out me" sans said as he sips on a bottle of ketchup. " oh okay " as you finished your burger you said goodbye to sans as you leave the grillbys dinner you went to the waterfall. While were almost there you hear someone say  your name you turn around to see who it was. And it was flowery "what do you want flowery" you said giving him the cold shoulders "what's the matter why the cold shoulders I just want "talk" with ya" flowey says "heh don't act as if I'm dumb flowey I know your trying to do". "Do what?" "You know what I mean flowey don't act dumb with me" you glare at flowey as flowey laughs insanely "HAHAH YOU GOT THAT RIGHT (Y/N). YA SURE ARE SMART" flowey says as his vains(?) wraps around you "FLOWEY LET ME GO NOW!!" You yelled as you struggle yourself out of the vains but fails. You grown tried all the sudden as your eye lips falls

<later on>

You open your eyes weakly as you see sans holding you while crying. You felt yourself slipping away "h-hi sans" you said weakly smiling "h-hey there kiddo are you doing okay" sans said while still crying you knew you were about to die and everything was getting dark every minute has pass "hey sans...can you smile for me?" You ask "please? It's not gonna take long" you ask again wanting I see him smile. Sans forces a smile "s-see I'm smiling" sans say crying. You smile too as you close your eyes "thank you......" Sans cries and tells out "please don't go...PLEASE DONT LEAVE ME ALL ALONE! I DONT WANT TO BE ALONE AGAIN! (Y/N) COME BACK PLEASE!" Sans looks down knowing that you won't come back

<2 year later>

It's been 2 years after you've died. Sans alway come to a pack of flowers full of the most beautiful flowers in the underground everyday with another beautiful flower. "Heh hey there kiddo how's it going. Did you know....everybody misses you a lot" sans says as he looks down and a tear slips from his face. "Hey (y/n) remember what you said to me? To always stay strong and determine well.. I don't think I can do it without you with me" sans cries even more "every single day without you was like hell to me..I need you (y/n) I need you to be with me by my side...." Sans says as he covers his face but he suddenly felt someone tap on his shoulder as he turn around his eyes widen to see you "sans please don't be sad don't cry for me okay? I don't want you to cry anymore. It's been 2 years sans just forget about me..i don't want you to suffer any longer than it already have. An I also want you to know that I was always by your side." You say looking at sans sadly "so please don't cry anymore" sans looks at you and smiles "I won't cry again just for you (y/n)" "thank you sans" you said happily as you disappear

HOPE YA ENJOYED IT I KNOW ITS SAD I WANTED YOU ALL TO BE SAD