61 - 80 of 400 Bookmarked Items in Alternate Universe - Underlust (Undertale)
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Lust wasn’t the type to get involved in alternate-universe shenanigans. He knew they were a thing because Dream, Ink, and Blue had dropped by at some point to offer him a place among the Star Sanses, but it just wasn’t his kind of scene.
So, when he saw a dark portal open up in an alley near Grillby’s and a skeleton fall through it his first instinct had been to turn around, head back into the nightclub, and drink some more. Hopefully, he could drown the guilt of letting some poor soul suffer in alcohol if he tried hard enough.
But then he noticed their soul… it was floating in front of their ribcage, battered and bruised and yet still not allowed to retire into the safety of their body. It reminded him of himself. Of all the times he’d been left just like that in similarly dark alleys that smelled of piss and poor life choices. He remembered having to pull himself up and stumble home, having to put on a bold face so Papyrus wouldn’t worry, having to call up Grillby to tell him that he hadn’t gotten paid that night… he hated those memories.
He didn’t give his rational side any more time to talk him out of helping.
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or, Lust finds a heavily injured Killer and decides to do something about it
Series
- Part 15 of October 2024 Fic Marathon
- Part 1 of Kindred Spirits
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Bookmark Notes:
Finished
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Summary
Lust doesn't like preening his own wings, so he finally decides to ask for help instead of waiting for Blue to come to him about it.
Series
- Part 10 of Winged Multiverse
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Mostly Loathing You. (So maybe I'm not okay) by JuniperAKAGooberBerry
Fandoms: Undertale (Video Game)
21 May 2025
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Summary
A rewrite of a silly fic I did A WHILE ago.
Old name; I think my cake is burning...
Heh, this is a HEAVY rewrite, and nothing is really the same as its actually thought out this time!!
Character list:
UT; (Rhubarb, Rhu)-Sans (Marmalade, Marm)-Papyrus
UF; (Tyrant)-Sans (Calamity, Cally)-Papyrus
US; (Cinnabon, Cinna)-Sans (marshmallow, Mallow)-Papyrus
LV 'n War; (Mara, Mar-Mar)-Sans (Nemesis, Neme)-Papyrus
UL; (Aroha)-Sans (Passion)-Papyrus -
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Summary
You've been stood up! How dare? Oh, who's that? They look a little sad..
Series
- Part 3 of Antiharem Compilation Album
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Three years in a row! Here is Fate's new Kinktober!
Each chapter will have its pairing and kinks posted and a warning if necessary. Chapters are of varying lengths and I branched out this year with different pairings (all the skeletons no Grillby or Toriel this year sorry) and used some other AU charatcers including a bit more papcest this year!
Enjoy~
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Summary
You write fanfiction.
That's literally it. There's not much else to you. Besides being just another forum username amongst a sea of other users.
You're decently popular, sure, and you love creating fantastical stories for people to read. The fandoms you currently inhabit give you that little spark of joy you need to keep pushing forward, but, once again, besides that small online presence, you have nothing, you ARE nothing.
So what the fuck are you supposed to do when you wake up in an all too familiar place, with all too familiar faces staring back at you, saying all too familiar things?
Fuck shit up and go off script obviously.
- Language:
- English
- Words:
- 24,184
- Chapters:
- 11/?
- Comments:
- 232
- Kudos:
- 1,015
- Bookmarks:
- 189
- Hits:
- 14,118
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This is my first attempt at Kinktober!
Series
- Part 1 of Secret Smutty Skeleton Stash
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❝ the concept between teetering insanity and skeleton tenants ❞
────── IN WHICH, you end up inheriting a motel from your grandmothers and your best friend decided to send a bunch of homeless skeletons (who are making little to no attempt to find a new place of their own) in along with their chaotic lifestyle and behavior. sure, you told yourself, things are fine now. sure, there's a lot of burnt kitchens and memes. sure there's a plethora of bad puns and one very tired old man passed out drunk on the floor. sure, you feel like you've aged fifty years even though it's been a day.
...this is fine.
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Bookmark Notes:
Reader runs a hotel
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Summary
After enduring years of ridicule from humans, Lapinita, a Rabbit Hybrid, escapes to a secluded forest where she lives alone for seven years, tending to herself and her garden. Her monotonous routine is disrupted when a group of skeletons unexpectedly arrive at her doorstep. After being alone for so long, she can't help but grow closer to them with each passing day.
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A story of Undertale AU self-indulgence.
LOVE, love, smut, angst, edginess, and self reflection. A story about teamwork and friendship, with lots of puns, ships, and feels. Full of head-canons what might deviate from the original story and/or AU ideas.
Worlds collide when shortcuts resonate. Will they be able to find their way home?
Series
- Part 1 of Resonation
- Language:
- English
- Words:
- 241,287
- Chapters:
- 55/55
- Collections:
- 1
- Comments:
- 1,910
- Kudos:
- 801
- Bookmarks:
- 147
- Hits:
- 25,905
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Bookmark Notes:
💖💖💖💖💖
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What should I do if I moved into a murderous game with skeletons? by huilanchik
Fandoms: Undertale (Video Game)
15 Apr 2023
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What if you also got into an otome game that you recently passed? So you don't know either. God, you're not even the protagonist, but just a background character who flashed through the story a couple of times!
"... Although, it's even better..." - you thought. After all, it's better for you to watch everything than to participate in a love drama.
However, things don't always go the way you want them to. And now love interests are sticking to you
"Leave me alone! Go to the protagonist!"
"Baby, we only need you."
What's wrong with this game?-
Bookmark Notes:
10
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You honestly can't remember when you had officially moved into the lodge to be with your datemate. It started as leaving things in his room under the (flimsy) excuse of having stuff for the next time you have an impromptu sleepover—but it was a not-so-subtle takeover.
The others didn't mind it either and were gracious enough to provide you with your own room for when everyone's shenanigans prove to be too much for you, but little did they know that they practically invited the devil herself into their home, because you're the queen of starting some bullshit or doing things for the bit.
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Bookmark Notes:
My lovely friend Liliths work <3
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Sans loves spending quality time with his brother Papyrus. He also fully supports Papyrus's relationship with a certain robot.
Papyrus is the best wingman, though, because he supports Sans and his bartender crush (despite the grease).
A oneshot written for the 2022 Fanzine "To the Bone: A sans and PAPYRUS Zine"
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How To Be A Human Being by JayBird421
Fandom: Underfell - Fandom, Undertale (Video Game)
02 Dec 2025
Summary
A tale of seven human souls, and two *not* so human souls. (what length will a person go to for survival? where do you cross the line between simply surviving and actually living?)
I'm being dramatic actually, but these fics are pretty cool :D
- Words:
- 392,697
- Works:
- 8
- Bookmarks:
- 18
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Bookmark Notes:
16of2 5of6
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Summary
Monsters have been trapped underground for a very long time. Locked in by a peculiar barrier, slowly but surely they are being drained of all magic they need to survive.
It has been so long now that monsterkind's lives have been drastically shortened and all ability to have children is null and void. In order to keep the species alive, the Royal Scientists are working overtime on their research... when, one fateful day, a human falls to the Underground. While this human murders a large chunk of the remaning population, they are ultimately is stopped by the king who harvests their SOUL -- which will be used by the Royal Scientists in order to create a medicine to save monsterkind.
[ an underlust au that takes a spin on the original concept to present a thematically similar story, but with some slightly different aspects that have led some of the characters to take different roles. originally named "underlust reimagine." ]
Series
- Part 1 of Underlust Rainbow
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Bookmark Notes:
chapter 9
an underlust comic that takes place after the first human ran rampage and when the serum is made
sans was the first monster to test the serum and had to be sent home, not feeling like he could support a kid who's parents died,also known as papyrus, he offers himself have some G and make usage of his heat
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Bookmark Notes:
Rare Underlust story that's not a sanscest, sans/papyrus, or an x reader, AND??? ITS A COMIC???
(not that any of those are bad, they're just not what i';m looking for o7) -
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Dream’s life shattered before Nightmare’s very eyes, his brother’s future being wiped out in one bite of an apple. A golden apple. He had been eating so many that Nightmare knew the positivity would overwhelm him and his senses, it’d become toxic. Corrupting.
This wasn’t right. This wasn’t right at all.
OR
After Dream eats all the Positive apples out of the Tree of Feelings, he corrupts into Shattered Dream. Slowly, due to this error in the code, the Multiverse begins to break - and Nightmare is at the centre of it all.
Series
- Part 1 of Longfics
- Part 1 of Apple of My Eye
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Summary
I bring you the area where I will put everything that is short and mini-chapters.
Different topics that I like but i don't have the time to create a long fic…
I will try more different topics here and even i will try to make new ones.I will add a lot of names from other authors here since my mainly idea is to help other people find ideas and create their own stuff.
This area is for one shots, I think people calls them like that?
Unrelated stories that have only 1 chapter or 2 if i make a pov from Sans.And also i will add the first chapter of long stories here to make you feel the boom of a new story beginning.
That way you'll never miss one of my new fics and you will learn from yourself if you like the story or not.
I accept ideas and suggestion. (Inside my possibilities and own likes)
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Summary
Ratings and Warnings on every chapter!
Pap/Pap
Ch. 1-7Sans/Sans
Ch. 8-14Sans/Pap
Ch. 15-23, 25-31Sans/Pap/Gaster
Ch. 24- Language:
- English
- Words:
- 3,100
- Chapters:
- 31/31
- Collections:
- 1
- Comments:
- 106
- Kudos:
- 130
- Bookmarks:
- 6
- Hits:
- 4,123
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Summary
Nightmare has made a spur of the moment decision to begin marketing his new sex toys at an upcoming fair in Lusttale, to kick start his buisness. The products? Cross and Epic.
I took inspiration from The Red Light District, and the Royaul Swapped AU for this!
- Language:
- English
- Words:
- 2,209
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 4
- Kudos:
- 36
- Bookmarks:
- 2
- Hits:
- 1,110
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Bookmark Notes:
New Product by gothsansmybeloved
Summary:
Nightmare has made a spur of the moment decision to begin marketing his new sex toys at an upcoming fair in Lusttale, to kick start his buisness. The products? Cross and Epic.
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Summary
Barista by day and DJ by night (Gigs only). Sadly, that’s not enough for you to get by and you are put out of your home suddenly. You have nowhere to go but you get picked up by a regular customer that you see every day. He offers you a helping hand and you accept. Moving into his place until you’re back on your feet. But you weren’t expecting to live in a full house of skeleton monsters.
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Bookmark Notes:
Good but mmmm
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Bookmark Notes:
13
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Bookmark Notes:
ch 14
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