LunaGirl39
Recent series
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how many isekais does it take to scroll in a lightbulb by Awlful_Koffee, Kaeyffe, LunaGirl39, MortallyDarkBird, Saltyfryz, TheDarklingDude, UserCookie2008, VoidSproutling (UserCookie2008), Z1pperZoomin
Fandom Undertale (Video Game)
18 Jan 2026
Summary
A series with 7 creators who probably don't communicate as well as they should
- Words:
- 12,120
- Works:
- 3
- Bookmarks:
- 9
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Summary
Finding yourself in a whole different multiverse wasn't exactly how you were planning your week to go, but knowing you, it was bound to happen at some point.
But hey! It's not all that bad.. well except for Dreamtale being in utter chaos, not having the squad with you, and being 'kidnapped' a couple times. But then again, this multiverse was already proving to be much better than your previous one. Or at least, there is more opportunities here. And come on, how could you miss the chance to see this many stars?!
Now you just needed to figure out how to get the squad here, hopefully without the stupid chicken.
Nightmare has a bad feeling, your Nightmare. You'll just have to make sure he doesn't go insane with worry.
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Summary
You’re just an average, happy human, going about life, trying to forge your way in the world. Fortunately, you’ve landed a nice job that pays well, you’re steadily and reliably working your way out of the debt you gained from moving to the city, and you found a great apartment (with a chill roommate, Sans, a polite skeleton monster with puns up his sleeve and an indecipherable gaze) for surprisingly little rent.
Everything’s fine.
And then, without warning, two more skeletons seem to show up out of nowhere at your and Sans’s shared apartment. The first to appear is Red, a hot-blooded, sharp-grinned alcoholic who isn’t shy to share his less than savoury intentions with you, with crude gestures and pick-up lines galore.
... And the second is a tall, broad, but quiet skeleton who immediately goes by the pseudonym Skull, sporting a huge crack in his head and a single, engorged red iris, that never seems to stop staring at you.
You’re not sure why both of them won’t leave you alone, or why Sans seems so desperate to stop them from interacting with you... But hey, what harm could come from it?
Series
- Part 1 of Aggre(g/v)ation
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Summary
You work at an animal shelter. You love all your fuzzy buddies and can't imagine a better job for yourself than looking after cats and dogs all day, even when the work is hard and often gross. What can you say? You've got a lot of love to give!
You're just not quite sure yet how you feel about the new monster who's been helping out these days, and this riddle wrapped up in an enigma is something you just can't resist investigating...
Series
- Part 1 of ~Soft Horrortale~
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Summary
A sharp yank on the leash cuts him off, and you’re pretty sure he fucking shudders.
“That’s not how this goes, bone boy.” Your voice turns steely. “No topping from the bottom with me. If you want something—” you wrap your hand around his lumbar spine and pump, pulling a strained gasp from his teeth, “—you ask me for it nicely.”
Despite his predicament, Sans manages a chuckle, once again treating you to that insufferable grin. “really, sweetheart? gonna make me beg or sumthin’?”
You tighten your hold on his spine, rejoicing in the way it has his eyelights glazing over. “For that little piece of backtalk, I will.”
Sans bares his teeth. “make me.”
Your lips twist in a cruel smirk. Oh, how you’d hoped he’d say that.
Shameless smut featuring Underfell Sans. Reader has a vagina; no pronouns or gendered nicknames are used.
Now with two more installments!
Series
- Part 1 of Bottoms Up
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Summary
Now, this is a story all about how your life got flipped-turned upside down and I’d like to take a minute just sit right there I’ll tell you how you became a dang ass skeleton fucker.
It’s been three years since monsters have integrated into society. After a frightening experience, you start to run into the same skeleton everywhere you go, and your lonely life soon makes a one-eighty turn. In a world where magic is real and monsters are kind, can you find a way to be part of it? Can you let yourself fall in love again? Can you prove to the world that Take On Me by Aha is the greatest song ever written? Because it definitely, definitely is.
PART ONE: Apartment - Chapters 1-50
PART TWO: House - Chapters 51-98
PART THREE: Home - Chapters 99-[tbd]The Reader uses she/her pronouns and is named--not a self-insert, more like a story in second-person. I don't generally reply to comments cuz I like an accurate comment count (2021 update: haha fuck that you WILL hear my love and appreciation. that is a threat). Author uses they/she pronouns plz default to "they" unless u know me, or yknow u can just call me Mod. Thank you! :D