Fellsans Stories

The reader has died and has been reborn as a killer sans but pregnant He has to learn how to use his powers and learn about himself first ------------------------------ ...

A weird UnderFell sans ends up hosting Fresh, Error, and many others. And by "a weird UnderFell sans" I mean a dumbass that got thrown into a fell sanses body...

Dom! Fell x Sub! Sans - The description ^ says everything

You. Yes YOU! 🫵 You randomly wake up in a middle of a battle to notice that you are now in the guardian of positivity body! You can't remember who are you! What you are...

"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...

!! STORY COVER IS MINE, CHARACTERS DO NOT BELONG TO ME EXCEPT Y/N !! (ps, I forgot the book I got inspired in doing this.) (Book is currently undergoing slow updates😵‍�...

(Art not mine, credits to the original artist) hey first book you can give any request, and i'll well try to do them, so if you want i can try to do lemons if you want t...

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 of commi...

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...

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...

(COMPLETED!!(with here and there new chapters) but mostly COMPLETED!!) i was makeing sans bitty x reader befor this and got bored so i made this instead please enjoy :) ...

First book sry for mistakes. Nothings been the same since the death blast. That what they started calling the "incident". Somewon pressed a button and nuclear...

[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...

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...

Kinda like discord but with the Undertale Aus this will be very stupid

I Am Sorry For Existence. Angst. Depression. Self Harm. Bad Stuff. Super Gay Shit. I'm Also Pretty Gay.

"ᴇᴠᴇɴ ᴛʜᴏᴜɢʜ ʏᴏᴜ ᴍᴀʏ ʙᴇ ᴇᴠɪʟ...ɪ ᴄᴀɴ ꜱᴛɪʟʟ ꜱᴇɴꜱᴇ ɢᴏᴏᴅ ɪɴ ʏᴏᴜ" "ʜᴏᴡ? ᴡᴇ'ᴠᴇ ᴅᴏɴᴇ ɴᴏᴛʜɪɴɢ ʙᴜᴛ ᴋɪʟʟ, ᴛᴏʀᴛᴜʀᴇ ᴀɴᴅ ᴀʙᴅᴜᴄᴛ. ʏᴏᴜ ᴄᴀɴ'ᴛ ᴘᴏꜱꜱɪʙʟʏ ꜱᴇᴇ ᴀɴʏᴛʜɪɴɢ ɢᴏᴏᴅ...

Im hecking bored so why the hell not Also these r gonna be done on mah tablet sooo my autocorrect is dumb lmao

I have seen multiple people's head cannons and decided to add mine These are NOT cannon, don't take these as fact. You can use these in your stories though Undertale be...

•His life is not easy, he tries not to act weak in front of people who understand him or listen to him, who hate him because of his work But it's not his fault, his life...