si11ybilly
Fandoms
Recent works
-
Tags
Summary
One moment he’s hanging out with his brother and their slightly edgy counterparts from another dimension and the next, he’s running out of a sketchy looking lab with a babybones in his hands and since he was the one carrying them at the time he ended up having to become their temporary caregiver. And now that thing had seemingly imprinted onto him, deeming him as its father so now he’s a dad…
Lots of plot holes there, yes he knows…But he couldn’t be bothered to focus on all the details at the moment.
Or…Sans ends up accidentally being a father figure to an eldritch horror and now has to keep it a secret or else the conformation of alternate realities existing will come to light and they’ll take away his baby! But luckily he has an amazing brother who’ll help him, oh and red and his brother are here too, lol.
Heavy inspo from the amazing fic! - “The misadventures of Sans and His Very Normal Skeleton Children” by: Olrethaz
-
Tags
Summary
“Why the face?” You asked in between laughs, your smile only widened as you watched him grimace while the gel began to quickly dry up on his face, prompting him to move over to the sink and begin washing it off.
“I wasn’t expecting to get a mouth full of slime..” He smiled back at you, barely suppressing a laugh of his own as he grabbed a small hand towel from underneath the sink and ran it under some warm water. He sighed softly as he made his way over to you and began dapping the damp towel over the spots on your face where the gel and leave-in conditioner had begun to dry and flake off.
Or
Dream helps you wash and detangle your hair! Yay!
-
Tags
Summary
“What is it big guy?” Killer asked, his once chipper voice now wary as he squinted his eyes in the direction Horror was staring at.
His eyesight was always poor, (now more than ever thanks to the determination pouring from his sockets.) so he stepped forward to get a better look. He was careful to be cautious as he summoned a knife, the magic buzzed faintly, trying to hold its shape as if it were unstable.
Horror stopped him before he could walk past, blocking him with his axe all while never taking his eye off the shadowy cover of the trees.
“Something watching…”
.
.
.
.
A normal supply run turns into an apocalyptic nightmare for nightmares gang. They’re stuck in some random zombie au with no way out, they’ll have to somehow manage to survive until Nightmare can locate them. -
Tags
Summary
Thanksgiving with the freelings!! ✧ ༘
This takes place before Nathan’s dies btw.
.
.
.
.Curiously, Abanddon looked back at Nathan to see what was taking him so long. What he saw was him scrambling around for his keys, checking cupboards, behind the sofas, he even ran upstairs to see if he had left them in his room. He returned back empty handed and slightly defeated.
“Hey uh Abby, have you seen my keys anywhere..? I can’t seem to find them, I thought I had left them somewhere in the kitchen…” Nathan began to ramble as he search and scavenged around, looking for his car keys.
“Hmm…Or was it the actually in the foyer, Oh!, Oh! Maybe Jessica got a hold of em—“
“I ate them.”
…
“What..?”
Recent bookmarks
-
Tags
Summary
After a small explosion and quantum level shanigans, Sans finds himself having to juggle two of you. Literally. (You and your alternate self have a threesome with Sans.)
Bookmarked by si11ybilly
11 Apr 2026
-
The Misadventures of Sans and His Very Normal Skeleton Children by Olrethaz
Fandoms: Undertale (Video Game)
22 Feb 2026
Tags
Summary
Grillby looked down from his bar to a familiar skeletal face staring up at him.
Sans?
But no, for as disconcerting as the resemblance might be this was certainly not a cheeky comedian. If anything, the little one (where are the stripes?) was still, almost unnaturally so.
Huh.
He hadn’t remembered any other skeletons about besides the goofy pair, but there was no way that one of them (Sans it looked like) could have possibly hid the existence of a whole person; or perhaps he had, one he didn’t know he was hiding to begin with-
“ya know where Sans is?” an eerie voice rang and the room stilled, silence as Grillby felt a headache, the world began to spin and-
A cheek-splitting grin “he’s my dad”
Sure, but does he know that?
All at once Grillby was wiping down his counters closing up his bar without knowing how he got there. He paused, then shrugged and figured that he should probably keep some sweets on hand for future reference.
Or
Sans acquires more children than he knows what to do with. Papyrus is ecstatic, the rest of the underground decidedly isn’t. The children(?) are absolutely no trouble at all, if you can believe it.
Series
- Part 1 of Undertale Fics
Bookmarked by si11ybilly
11 Feb 2026
Bookmarker's Notes
Super funny, love the writing style! Would definitely recommend <3
-
Tags
Summary
Abaddon’s eyes glisten. “You don’t understand,” he pleads, his voice small and shaking. “Please—I’ll behave! I’m sorry! I’ll be—I’ll be good!”
Katherine’s hand trembles as she slips the crucifix over his head, pushing down the guilt she feels. “It’ll only be for a few hours,” she says quietly. “I really didn’t want it to be this way.”
The moment the beads touch his skin, Abaddon cries out to her , a sound that doesn’t belong to a child at all. Katherine forces herself to turn away, heart hammering as she steps out of the attic. She has to remind herself that that isn’t a child, but a spawn of hell in a child’s body.
The door slams shut behind her.
OR
Katherine accidentally curses Abaddon with a crucifix, causing him to grow extremely sick. She’s left with no choice but to do everything she can to save him before it’s too late
- Language:
- English
- Words:
- 22,525
- Chapters:
- 7/?
- Comments:
- 174
- Kudos:
- 1,066
- Bookmarks:
- 172
- Hits:
- 11,465
Bookmarked by si11ybilly
26 Nov 2025
-
Small devil, you're with us now and we won't let go. by Kelkin_Some1
Fandoms: Haunted Hotel (Cartoon)
19 Dec 2025
Tags
Summary
An Abaddon/Esther centric story following the end of season 1.
Heavy subjects such as suicide and death mentioned and explicitly described, please, read at your own risk.
Expect found family and their dynamics and silly moments. I'm writing this just for funsies so don't expect too much :)Snippet:
''Demons didn't sleep.
That much was always known to him and he would often remind it to the Freelings.
But now, he was...
Tired?
Maybe.
Maybe he was.''
[[ABANDONED]]
Bookmarked by si11ybilly
23 Nov 2025