the joking hero (May end up getting a rewrite)

sans izuku story izumomo I do not own any art unless I say otherwise they're here and they aren't giving up easily

Crazily In Love! (AU Sanses X Classic Sans) Under Editing

Ink and the other sanses were just having their meeting when suddenly they were pulled in to a portal. When they woke up all of them were all tied up. They tried to use their powers but , it seems the one that captured them put magical hand-cuffes to block their magic. They looked around and saw a tall figure standing...

I Just Want Peace (bad sanses x classic sans)

(On hold, only Toby knows how long) A normal day...... that's what I thought..... I never new that I would have an experience like this..... *Hi guys! so this is an Undertale fanfiction. Undertale belongs to Toby Fox and the other AUs belongs to their respective owner. I do not own anything else in this story except f...

Test subject

Gaster the royal scientist dark reality, you've seen the boys. You THINK you know there backstory. It's time for a harsh truth about Sans and Papyrus you never thought you would hear This story is based around my friends theory that Sans and Papyrus in a sense where 'made' by Gaster.

Classic Fontcest {scenarios}

Warnings: Sans x Papyrus SLIGHT/IMPLIED NSFW. The book itself will have some angst, but I'll put trigger warnings if you are sensitive to them. If you don't like this ship, then leave. I'll do what I want. Keep your opinions to yourself. -- A bunch of scenarios Sans and Papyrus go through! Ill only do classic for this...

Sans the Skeleton

Sans has been doing his job protecting Frisk, no one else except himself and Frisk know about Gaster and how he listens into everything Frisk does while talking. Eventually Gaster goes too far and it's up to Sans, Papyrus, and Frisk to figure out how to get rid of Doctor W.D. Gaster...

Heroes of the Underground (Undyne X Sans)

Undyne and sans find themselves alive after the fallen human commits a genocide run. They follow the human seeking revenge. They are the only monsters in the underground that are powerful enough to stop this genocidal human from destroying mankind.But what will happen when they start to develop feelings for each othe...

Sans X Undyne

I like it others like it, its hard to find so here ya go. Also contains OOC UPDATES also may take awhile from time to time.

Gravitytale

Spoilers for after Undertale and after Gravity Falls! The twins are coming back to Gravity Falls for their winter break. However. The mountain just by Gravity Falls had a strange event a few weeks after the twins left. Monsters from the fabled "Underground" started coming out of Mt Ebott. With their savior, Frisk. Now...

Failed Experiment

Sans x Frisk the last experiment no 2398 failed.. they create a monster but... is that he the true monster or somebody else?

Human Or Monster?

While helping Alphys carrying her stuff to a new lab on the surface, Sans touches something that he shouldnt and get turned into a human. There's gonna be a lot of problems considering the situation and Sans' unknown age. There are a lot of things that can't be held a secret anymore. And, of course, Sans has never tri...

Reset

We all know how Frisk eventually kills Sans in the end. But what would happen if Frisk gave up?

Branches On A Tree

The barrier is finally broken, and at last all of monsterkind are free to walk on the surface. Again. Sans the Skeleton is skeptical. Why bother getting excited for something that's just going to reset? This is not the first time the barrier is broken, and probably not the last. He feels the need to take a break for e...

Breaking Bones. (GB!Sans story) [Discontinued]

(Discontinued.)It's been a month since the barrier, keeping the monsters underground, had broke. Sans had fallen "sick," as his brother, Papyrus had called it. But Sans is hiding something big. Very big.

A SkeleTON Of Mystery

The Barrier was broken. The monsters were free. Saved by the child of their jailers. A year has passed since monsters have felt the sun on their bodies once more. Frisk chose to remain with the monsters, living with their close friends under a single roof. Everything seemed to be in perfect harmony. ...Which always...

Spectrum *NOT MINE*

(DISCONTINUED. GO TO THE ACTUAL AO3 WEBSITE TO READ OTHER CHAPTERS) https://archiveofourown.org/works/5350673 It's over. Frisk's journey has ended in the best way possible, and now Monsterkind is moving forward. Sans is eager to join them, but when a personal demon appears to (quite literally) manifest, it's up to Pa...

Gaster Blaster Sans

What is wrong with Sans, and who is Gaster? This is such a reused Description. Undertale belongs to Toby Fox.

gaster sans x classic

First I do ship this since haha I got it off amino after someone role played it and yeaaa so this is how it first started so it doesn't go deeper just yet ;) Before we start let's talk :D So I got this story based off undertale amino how? One, an amino as my account I share with someone so there was a Gans and a cl...