1 - 20 of 8,798 Works in Sans/Sans (Undertale)
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Living without a soul is hard; loving is even harder. Even the famous guardian of the AUs has a tough time when he washes away all the yellow paint. Error will understand. Error will calm him down. Error will help him pull himself together. But can you truly look into the soul of someone who doesn't have one?
- Language:
- English
- Words:
- 1,849
- Chapters:
- 1/1
- Kudos:
- 6
- Hits:
- 17
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Cross develops a terminal Soul disease, but his father only cares about his own reputation as a stellar Medical Scientist and uses his son(s) as lab rat to find a cure.
Series
- Part 7 of Nightmare's Clan
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A peek at five times Geno and Reaper talked in the Save Screen.
Oh, and Frisk is there too, I guess.
Series
- Part 2 of three years after...
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"Alright Killz, listen," I began in a serious tone, "just know that this year, nothin' will change mkay? I'll still be your best friend and you have everyone here on your side, we all support you and each other and you can always talk to me, and all that lovey-dovey shit." He now wore a grin on his face, not one of his artificial ones but a true, genuine smile. "Because I love ya man. Nightmare may be a bitch but he also loves you and so does Cross and Color. Everyone. You don't need to be alone in your feelings-we're all growing together to learn how to forgive ourselves and just..yanno, live without suppressin' emotion."
Series
- Part 5 of a tool and a muse. V2
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A Burning AppleSeed. by Crimson_Cream16
Fandoms: Undertale (Video Game), Dreamtale - Fandom
22 Dec 2025
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Poor Max of 16 years of age, is plummeted into a mess of horror and fear.
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Holy cyclops!Could you believe that's an actual word?Anyways,here is a collection of one shots of the sanses either being wholesome,hating,or having sex with eachother.
Requests?𝐎𝐏𝐄𝐍...Their open!
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Nightmare lives alone and never leaves his apartment. That’s exactly how he likes it. Better to be alone and safe than vulnerable.
Then his carefully constructed life is turned upside down by three chaotic and damaged bitties. Together they learn that good things don’t come easy, but they are worth the fight. It’s debatable who saves who.
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Unavoidable Outcomes by Crystalight532
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
20 Dec 2025
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The Multiverse isn't as unreachable as one might think. Sometimes, all it takes is one aware person to tip the scales for another to find out about it. But when one isn't ready for it, returning to their own world is relieving and best for the psyche.
Humanity's thirst for knowledge is near insatiable. How far would they be willing to go to learn more about their new magical coinhabitants on the surface? How far would they go if they could weaponise their magic?
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Having a family brings about unforeseen challenges, but Error and Ink worked out a system. A system that works well for their charming little family, anyway. Error stays home and watches the kids while Ink does his ever-pressing job, and vice versa on the rare occasions Error has to clock in. Error doesn't mind; the more time he gets to spend at home on the couch, the better. Even if his bunch of kids can give him a headache sometimes.
One day, this flawless system comes to a screeching halt when Error realizes he completely forgot about his promise to the vengeful King of Darkness. It's just his luck that the day he is all alone with the kids is the day he has to go help a fickle guardian with this week's malicious heist plan, huh?
Well, you win some, you lose some. "Bring your kids to work day?" Bringing them to a heist you completely forgot you promised to do counts as "work" too, right?
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Life had been... good...? Dust hesitated to call it that, because whenever something was good, it'd inevitably go terribly, awfully bad.
And it did. Horror had gone missing one day, without a word and without a trace, leaving Dust all alone.
Until, of course, he found him in a random AU, content and... living his best life. He felt indignant, abandoned for another version of them that wore a fucking sunhat, for crying out loud! So he did the most logical thing he could; pretended to be a Sans from a Fellswap AU so he could be with his lover again, if only for a little while. -
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A lot of shit happens. I'd like to state here I have NOOO experience with writing intimate scenes, and all of this is PURELY self-indulgent for all the weird ideas I have for my headcannons and pairings. This could sort of double as a BSP fic too ig, but it's going to be Killer-centric.
But yeah, if you read, I hope you enjoy!
- Language:
- English
- Words:
- 702
- Chapters:
- 1/?
- Hits:
- 2
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Your honor, I have stolen this child and made him cursed- by TerminusVerso for Claudy
Fandoms: Undertale (Video Game)
19 Dec 2025
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A series of random short stories for my good friend.
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Following an attack that revealed an elaborate plot to end his life and left him severely injured, Cross is forced to not only stop being Nightmare's bodyguard, but accept a bodyguard of his own. Nightmare insists that he'll need the protection while he lays low and waits for the situation to get resolved, but Cross isn't so sure. Even though he's decided to put up with it for Nightmare's sake, he is not happy about it.
The only thing that could possibly make this worse was if, by some insane turn of fate, his new bodyguard just so happened to be his soulmate.
~-~
updates whenever possible :) -
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Reaper discovers he is pregnant, and rushes to tell Geno the good news. Only to discover Geno has mysteriously disappeared. Now Reaper must juggle raising his eldest son Goth, searching for Geno and being pregnant with a highly dangerous job.
Starts off with the AfterDeath, Reaper/Geno pairing, then transforms into DestructiveDeath, Reaper/Error.
⚠️ Warnings ⚠️
* High risk pregnancy, and everyone lives.
* Angst with Happy Ending
* Warnings to be added before the chapter posts -
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Red wakes up in an AU that's not his own. After being taken in by Sans, his adventure begins. Drama, violence, silly insults, actual serious moments, romance, and more!
I don't know what tags to use, so tag suggestions are welcome! -
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Ink has been becoming weaker. Nightmare wants them to talk about it.
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Cross knows he fucked up getting seen, but in his defense he did not know how powerful mages could be. It was only supposed to be information gathering, how could he have messed up so bad? He doesn’t want the others to know how horrible he is, how weak.
It’s better to hide his failures so they don’t hate him, he deserves this pain.
(His lovers don’t agree, but he does not know this yet.)
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Exhausted from a long, tiring night of soul-reaping, Reaper returns home, finding comfort in the warmth of a loved one. Geno is a little less happy being woken abruptly by a freezing husband, but he puts up with it for love.
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E-4 had had nothing. Brutal tests had been done on him for 4 years until he had finally escaped, killing the only person he had ever known. But he was still alone. Everyone had been evacuated a couple days earlier due to mysterious attackers. So, E-4 was alone for another 4 years until a mysterious, goopy version of himself offered him a home.
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My sans OC joins Nightmare's gang
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In the year 40XX humans and monsters have successfully established colonies in planets far away from our own, in other galaxies. Polaris VI is one of the many missions to deliver supplies to a space station overseeing one such colony. With Cross as the commander, Killer as the pilot, Dust as the medical staff onboard, and Horror as the engineer, this mission should be successful and be back on earth ten years after departure, as scheduled… little do they know this mission will change their lives forever.
Updates every monday!