undertale .... well mostly underfell
16 stories
Showtime (A Sanscest Story) by carelesscreativity
carelesscreativity
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    Parts 77
Cross has had it. There is only one place left for him to go and he just HAS to find it. Escaping an abusive father, he seeks the Circus. A spectacle of performers and animals. But once he's there, things aren't as they seem. Ships: Crossmare Errink Kreme Horrorlust Afterdeath Dustberry WARNING: SAD
The True Meaning Of Broken~ Nightmare Sans x Reader by SheridanHarris
SheridanHarris
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you know pretty much all the sans in the multiverse and you get along with mostly all of them you were also a very close friend to a certain blue little cinnamon bun underswap sans but you called him blue for short. you and cross were pretty much siblings and you could also see chara which gave her another person to talk to not to mention that you were also friends with him and his group even though the leader 'nightmare' was the king of nightmares he was nice to you and the others because he thought of you guys as his responsibility so he would take care of you all nightmare let you visit blue because he knew that he wasn't a threat and he was only one of the people to be able to help you keep your 'insane side' under control only blue and cross were able to control your insane side and lets just say that without it well... things get real messy usually you were really nice dispite your love to destroy things and if someone were to hurt someone you cared about well they died so yeah death was normal for you guys did i also mention that you were a destroyer of au's too your job when nightmare went out destroying au's was to cover his blind spot since he only has one eye you cover the spot where he couldn't see just to protect him okay you have a small crush on nightmare but oh well its not like he's gonna love someone as broken as you what happens when one day your going to visit blue in underswap only to find his dust surrounded by golden dust and paint? lets just say... SOMEONE IS GOING TO HAVE A VERY BAD TIME
Friend or Foe? (Underfell sans x underfell chara) by The_Ender_Bandit
The_Ender_Bandit
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DONT JUDGE MY SHIP I don't care about the stories that were told, I just wanted to disappear, so I decided to climb mount EBOTT. Soon after I got to the top, I suddenly feel a falling sensation... No, it wasn't just a feeling... I was really falling... I looked around, nervously at the black void that surrounded me, and I shut my eyes tight. The next thing I know, I fell flat on my face on a cold, stone floor. And this is where my journey began...
Sorry (Chara x Sans) //On Hold// by imundertaletrash-
imundertaletrash-
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It had been ten years since they all got to the surface. Frisk shared a soul with Asriel and Chara, due to Frisk, went pacifist. They all lived happily in Ebott Village. Toriel with Frisk, Asriel, and Chara. Sans with Papyrus. Asgore alone. Undyne with Alphys. Mettaton was somewhere else with Blooky being famous and all.. Frisk refused to reset after she had finally saved Asriel. Everyone's happy. Right..? No..? Chara isn't..? Huh.. Oh well.
Ask Chara And Sans! by Arie_Xona
Arie_Xona
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"Ask me!" "Remember, To rate how cute Chara is." "S-sans!" "H-how did YOU get here..?!" "Oh, my little tusundere, its a secret." "Im not a tusundere! Idiot!" "Heh, if you say so." Set in my freinds and my A.U. called Pillowtale. Chara acts like a tusundere to Sans. but for some reason, she dosent say "Baka!" Sans loves Chara, but he isnt afraid to show it. each day, he tries to win her heart, with a small smile, and a hug.
Sans (X reader) lemons/smuts by ChilleTales
ChilleTales
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    Parts 6
The title explains it all...
Undertale Lemons by Galactic_Chewies
Galactic_Chewies
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Okay I am so sorry I didn't say this earlier. Most of the lemons here are not written by me. If you saw them from another website, don't hesitate to tell me and I will (as soon as possible) credit the author. If I know who it is I will definitely give credit. Sorry for that, tho.
Undertale Smut by FriendlyHougen
FriendlyHougen
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End my suffering Stay away if you can't handle the smexy times
LOVE or Love? [Sans x Chara] by The_Lost_Soul_09
The_Lost_Soul_09
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Heya guys, Cathy here. So I was thinking of writing a new story on my new account... And being the crazy person I am, I shipped Sans with Chara. So here it is, a Sans x Chara series. Enjoy! -------------------------------------------------------------------- Your name is Chara The demon that comes when people call it's name It doesn't matter where It doesn't matter when.
Alive again Killer? ( Chara x Sans ) by Day_Dreaming123
Day_Dreaming123
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    Parts 5
another reset occured, Decided by Two fallen children filled with determination.When Frisk fell, surprise! Chara is there, on the ground next to the flower patch.She was bleeding just like before... what happend? a glitch maybe? who knows? yet as Chara once again, wandered the underground Now Alive--The Kid came across that same ol Skeleton...No other than Sans...