1 - 20 of 46 Works in Asexual Sans (Undertale)
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Snowdin Adventures with the Skeletwins by Just_AliAnne261
Fandoms: Undertale (Video Game)
13 Nov 2025
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Summary
"You want to know what to do here in Snowdin? Grillby's has food, and the library has information... If you're tired, you can take a nap at the inn. It's right next door - my sister owns it.
"And if you're bored, you can sit outside and watch those wacky skeletons do their thing. There's two of them... Brothers, I think. They just showed up one day and... asserted themselves. The town has gotten a lot more interesting since then."
The daily lives of wacky skeleton brothers Sans and Papyrus. Watch and read as they get into all sorts of wacky adventures, cause mayhem, and learn life lessons along the way!
Series
- Part 1 of Skeletwins
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After Frisk manages to bring W.D Gaster to the Surface, he, Sans and Papyrus are able to continue living as a family.
However, W.D Gaster begins to realise just what his children endured during his 17 year disappearance.Content Warning: Discussion about past trauma, child abuse, underage prostitution, aphobia, coersion, child abandonment, homelessness and child sexual abuse.
Series
- Part 5 of random angst
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You Dug Up This Grave, Now Lie In It by Taliax, ThisKwamiNeeds_aNap (KwamiNap)
Fandoms: Undertale (Video Game)
06 Nov 2025
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Mettaton brings home a strange skeleton child. With his now-skeletal cousin Chara unwilling to explain their origins or identity, he falls back Alphys's original assumption: that this child belongs to him and Papyrus.
Now he just has to convince Papyrus to play along... and convince himself that it's all just part of the show.
Series
- Part 16 of Chara and their Blook Family
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An Unexpected understanding by Ari_Artzzz404
Fandoms: Undertale (Video Game), Underfell (AU)
30 Jul 2025
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Summary
when the monsters finally were freed from the underground, the humans were outraged, though that was to be expected, humans tend to be afraid and disgusted by things the don't understand, and they didn't know the whole story, And the monsters were wary and cold towards humans due to this.
therefore, the tension between humans and monster remained at a constant high.
Y/N was a human who wanted to understand. At first they were wary of monsters, they didn't hate them, they knew that at a lot of the things humans say about them are probably wrong, but they never really knew or not, so they were overly anxious around them, especially with a SOUL defect already making them anxious. until an event with a monster makes it clear to them that human bias is true sin, and that it was time to be open their mind and change.
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Under the Water Oak Tree by BubblyShip
Fandoms: Undertale (Video Game), Hazbin Hotel (Cartoon)
14 Jun 2025
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Summary
Alasor had this tree in his room. Native to New Orleans, with thick narrow leaves that cascaded up into the dome of a ceiling. Just past that, the architecture was anything but quaint- with fire flies buzzing about the air of green and blue foliage. Somewhere, somehow, the sound of nature always chirped from that centerpiece tree.
Sans would have found the tree appealing. If he wasn’t trapped with it.
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Alastor weaseled his way to some fanciful contracts when a sudden influx of monsters in hells population occurred. One of those unlucky souls was a certain skeleton Alastor took a very intense, platonic liking to.
Sans is thoroughly not amused.
Series
- Part 3 of Sans x Alastor
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Summary
Frisk makes a decision. Someone else is left to face the repercussions of actions that weren't his own. How can you be honest with those around you, when no one remembers what you went through?
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Ask The Undertale Cast! by teruteruteruteruteruteruteruteruteruteru
Fandoms: Undertale (Video Game)
26 Mar 2025
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Summary
Ask your favorite RPG characters some questions, anything. You (please be chaotic in a normal way!)
- Language:
- English
- Words:
- 56
- Chapters:
- 1/?
- Comments:
- 2
- Hits:
- 79
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Summary
*kicks down your door* LISTEN! We ALL know what this is about! It's rated E! The title is a body part! THAT'S ALL YOU NEED TO KNOW!
I know, that you expect some well thought-out summary here, but I SUCK at them, so THIS is what you get! Smut, fluff, a sprinkle of angst, you are the top, Sans is the bottom, no penetration, heavy petting, that's it, that's the fic. My god!
*leaves with an ungraceful flourish, while jumping through the closed window* -
The College Fic No One Asked For by Fyn_Lives_In_The_Void
Fandoms: Undertale (Video Game)
10 Nov 2024
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Summary
Gaster’s life had been a simple one, built around a routine he found comfortable and familiar. Five days out of the week, he taught physics at the university where he worked, spending his lunch break with his two sons, both students at the same university. Each morning, he stopped by the coffee shop on campus for his morning coffee, spending a little more time there on weekends to work on his latest book. It wasn’t the most exciting routine, but he found it safe, familiar, it was his life.
So when the university hires a new groundskeeper who basically wreck his safe routine…what’s he to make of him? It doesn't help that his appearance seems to have triggered a domino effect that just takes Gaster's life off the rails. This professor needs a nap damnit, he's too old for this.
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Alphys and Sans are both some flavor of LGBT and Alphys has a hard time accepting it about herself. Luckily Sans is chill and just wants to help her feel better.
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A "shortcut" gone wrong results in Sans and Papyrus swapping bodies. But the greatest scientific breakthroughs often start as accidents—and this might be the key Alphys needs to save Chara and Flowey.
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this skeleton does NOT wanna bone
(sans undertale realizes he is asexual)
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Ultimately, in life, you cannot be kind to everyone you meet, and you cannot be the hero of every story. In the stories of some, you will undeniably be a villain, no matter how hard you try to please the world.
You can't change what's been done.
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Set in Deltarune. Summer hits in the small town by the mountain, and you return home from college. Unfortunately, you forgot rent exists. sans’s is the only place that hires.
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Is there anything better than sex? Yes, a really bad pun by SomeGrumpyNerd
Fandoms: Undertale (Video Game)
03 Jun 2023
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Ace Sans is my passion and I wanted to try out writing something for it, and also dumb puns and soriel. Happy pride month!
I'm still getting used to writing so this might be a little clunky, but I'm projecting on Sans Undertale and having fun!
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A Love story (Sans x reader) by bunnypawzz (orphan_account)
Fandoms: Undertale (Video Game)
17 Feb 2023
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Summary
I write you and sans doing whatever shit I find funny
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Monsters, Magic, and Friendship: A Case Study by daisynose
Fandoms: Undertale (Video Game)
19 Nov 2022
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Eva was only 13 when monsters emerged from the Underground and the world turned upside down. Since that day, she’s made it her life’s mission to study them and their biology. When she’s accepted into the one university in the country that monsters can attend, she’s given her opportunity. As Eva starts to get up close and personal with certain lizard and skeleton monsters, she has to decide what’s more important: scientific discovery or friendship (or something more than friendship?).
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(texts received at 10:03am)
Born This Way: HELLO FRIEND, I HAVE GREAT NEWS!
Born This Way: I, THE GREAT PAPYRUS, HAVE FINALLY FREED UP A SINGLE EVENING ON MY SCHEDULE ALL SO WE CAN... FINALLY... HANG OUT!!
Born This Way: IT'S TRULY A CRIME THAT I HAVEN'T BEEN ABLE TO SPEND TIME WITH MY BROTHER'S BEST FRIEND YET. :( BUT NOW IT IS TIME TO CHANGE THAT!
Born This Way: TO COMPLETE THE FRIENDSHIP RITUAL, I SHALL TEACH YOU HOW TO MAKE MY SPECIAL FRIENDSHIP SPAGHETTI!(In which a hangout with Papyrus turns into a dinner with the Horrortale brothers.)
Series
- Part 6 of The Fame Monster
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FAIR WARNING!!! this book contains mpreg and is focused around it!
there's no smut or sexual stuff, just pure angst n fluff but if ya don't like that kinda thing please avoid this book like the plaguesummary:
basically sans does a science experiment to create new monster souls, it doesn't go to plan and now he's pregnant lol
monsters go to surface, he moves in with asgore yadda yadda i swear the actual thing is okay i just suck at summaries- -
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One could only imagine Sans’ displeasure when you, a crooked and wanted criminal trying to make ends meet, decided to pickpocket him on the same awful night of a one-sided date.
It had never crossed his mind that this very thief would alter the course of his life and worldview for the better…
And perhaps the same could be said for you.
Larceny had never seemed so charming.