Fellsans Stories

377 Stories

Static Burgundy by PonchoBow
Static Burgundyby 𝕂𝕒𝕔𝕙𝕠𝕨
During a skirmish between Error and the other sanses, one of Sci's inventions went haywire(as they always do) and it goes as well as you think. Maybe. Error feels a head...
'Shy Pet' Underfell Sans X Reader by sentifrost
'Shy Pet' Underfell Sans X Readerby noé
[Disclaimer that this book is very old nd poorly written, please keep that in mind!] You were shy. You were small. You were picked on. You were told you weren't tall eno...
Be My One and only! (Yandere!berry X Fell sans) Slight Nsfw?????? by FresherThanDat
Be My One and only! (Yandere!berry...by Mochii
This story is about yandere blueberry. apparently he likes fell, but fell likes sci- and theres countless others who blue thinks might have a chance with his husbando- s...
UnderFell Sans x Male Reader  by HappyHuman020
UnderFell Sans x Male Reader by ~~Mirka~~
I have seen alot Female Reader's x Fell sans So i wanted to try a Male Reader! :) Please be aware that i am not good at this types of books. :) ⚠️ THIS BOOK CONTAINS ⚠️ ...
Simpmare  [Errormare] by DahRadSkeleDude
Simpmare [Errormare]by JJ_loves_Ruru
Nightmare is a simp for Error thats all ya need to know.. love at first sight? slowly falls into simpness? Will Error like him back? maybe..idk..read to find out Also...
Undertale Boiz Oneshots by Fandomz_Fanboy
Undertale Boiz Oneshotsby Remus Hisahoshi
Yes , a sequel. I can't just leave everybody hanging when my oneshots were actually getting a fairly awesome amount of reads! Plus, I have even MORE ideas! I can't wait...
Undertale/Au's x reader 4 by Broken-fnaf-fan
Undertale/Au's x reader 4by Artsy is bored.
Here's the fourth book! thank you all for all the love and nice comments on the first, second, and third book! NO LEMONS! FLUFF AND YANDERE ONLY! Mostly Au sans and pa...
ClockTale an Undertale AU by fublle
ClockTale an Undertale AUby Timer
"Hm?" Timer asks taking his wrist watch off, checking the time before taking out a screwdriver and pulling it apart. Nervous habit of his. The meeting between...
AU! Sanses X Reader Oneshots by Lxzaruss
AU! Sanses X Reader Oneshotsby Lazar.
Please do take note that the Story cover isn't mine and belongs to original rightful owner. My very oneshots book with lemons, fluff, and possibly angst. Book Start: Aug...
Undertale Boiz x Reader by Fandomz_Fanboy
Undertale Boiz x Readerby Remus Hisahoshi
Guess who's back into another fandom yet again? That's right! Evangeline Hisahoshi! Hello everyone and this is my newest book of one Shots because the undertale has fina...
Au Group Chat     Bad sans/Star sans/Others by DahRadSkeleDude
Au Group Chat Bad sans/Star sa...by JJ_loves_Ruru
Kinda like discord but with the Undertale Aus this will be very stupid
When Life Gives You Lemons {Requests Closed} by Something_Else_Sins
When Life Gives You Lemons {Reques...by Pinapplerus
Im hecking bored so why the hell not Also these r gonna be done on mah tablet sooo my autocorrect is dumb lmao
My destiny (Fgod error student version) by Crying_Author
My destiny (Fgod error student ver...by Itz_Shadow_Eclipse
The cover of this book is made by ♡͙♡͚ɢʀaɖɨɛռt♡͚♡͙ on Pinterest. Error had enough of the violence in his multiverse so he decided to jump into the void in hopes to commi...
Underfell Sans X Frisk by Hazefrost
Underfell Sans X Friskby Hazefrost
When Frisk falls into the Underground, she is horrified to discover the world of monsters is every bit as evil and broken as she had been told her entire life. But when...
(RP) Sanscest, Papycest, Fontcest (Complete) by ErrorSans_AU
(RP) Sanscest, Papycest, Fontcest...by Error Sans
read the title Come join me and our amazing adventure through the many Ships and even many Multiverse AU's like DreamSwap and NaJ No sweat! I hope you all come and have...
Sweet little Error~  by Yumiko111316
Sweet little Error~ by Yumiko Yumiko
Error, was also Sans one's. He had a life before he woke up in the anti-void, and lost his memory about his past. His old self. The REAL him. His bones turned to Black...
Big Sister Undyne by Moonstone_Ccino
Big Sister Undyneby Moonstone_Ccino
Underfell is a dark world with the major rule of kill or be killed. Even though children are suppose to be secluded from this rule, that doesn't stop monsters from hurti...
A Bitty On the Streets by DREAMER20081
A Bitty On the Streetsby TAYTAY
Y/N was just finishing her(or his) nightly walk around the town's block, when all of a sudden she(he) heard yelling and some sort of crying. She(he) went to investigate...
New Life {Bittybones AU Sans x Reader}  by 9dele9ted9
New Life {Bittybones AU Sans x Rea...by not active anymore srry
They were hurt. They never really felt love and care. What happens to them when their old abusive owner decides to abandon them in a cold night, when (Y/N) finds them? T...
Re⃥i̴n̴C̥ͦḁͦr̵N̑̈ȃ̈t̑̈e⃥d̵ a̸S̴  D⃤U⃤S⃤T⃤ S̸a̸N̸s̸ by ForgottenReapers
Re⃥i̴n̴C̥ͦḁͦr̵N̑̈ȃ̈t̑̈e⃥d̵ a̸S̴...by
if you don't understand what the title says, it says (reincarnated as dust sans), now I don't have a lot of motivation, so because of that I will procrastinate a lot, so...