merrinbrite
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Summary
You're a grad student at a house party. How many skeletons are you running into there? At least one you didn't expect.
(This explains nothing. Please read if you like Sans/Reader romance slice of life with plot, character relationships, fluff and eventual smut. Underfell headcannon is being used.)
(Time for a second note to reemphasize PLOT. Drowning in plot. Plot for days. Send help.)
(None of this is really about college.)
(Arcs Completed: 1/4)
(Arc In-Progress: 2nd Arc)Reading Note:
I don't know if this really matters, but I write and read everything in dark mode--so if you want the authentic author experience, that's what I'm seeing! -
I'll Buy Ya Dinner Later (Kinktober 2025) by merrinbrite for Sinsational_Sinnabon
Fandoms: Undertale (Video Game)
09 Feb 2026
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Prompt: Strangers
Bara Sans Underfell x Reader
Series
- Part 1 of Merrinbrite's Kinktober 2025
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Reader tries another attempt at a demon ritual in pursuit of helping their favorite demon skeletons.
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Ruby prepares a lingerie surprise for her husband Dust, but it doesn't go exactly the way she was expecting.
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The Terms of Agreement (Kinktober 2025) by merrinbrite for Sinsational_Sinnabon
Fandoms: Undertale (Video Game)
15 Oct 2025
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Prompt: Consensual Non-Consent
Nightmare!Sans x Reader
Series
- Part 2 of Merrinbrite's Kinktober 2025
Recent series
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- Words:
- 18,435
- Works:
- 2
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Summary
It hasn’t been an easy 15 years since since the barrier atop Mt. Ebott broke and monsters were reintroduced to the surface world. The uneasy acceptance of monsterkind was hard won by many sacrifices though over the years tensions have settled into a general, though in some cases begrudging, acceptance.
You are a grad student at the local university, eagerly pursuing a degree in Geophysics and Planetary Sciences in hopes of returning to the National Park Service. One step closer to the future you’ve had planned out since you were 17.
Plans change, though… and along the way, you might undergo a metamorphosis too.
*Please do not assume this is just a student/teacher kink fic, because it is not :) -
The Purest Soul 💙 by Sinsational_Sinnabon for merrinbrite
Fandoms: Undertale (Video Game)
27 Apr 2026
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The leader of the human province and head mage, Cadoc, has no qualms in letting anyone willing to listen know that his third daughter—an unassuming girl with a deep blue Soul—has the most powerful magic known to mankind. She's able to perform feats that would make the entire monster kingdom tremble in fear. She may even have enough magical prowess to tip the scales of power between the already tentatively peaceful neighbors.
Reluctant to violence, but hand forced with the protection of his recently unearthed populous, King Asgore levels the humans with an offer. Hand over this Blue mage to be paired with his Son, in a show of unity between their nations. Eager to breach the tall walls of their secret kingdom for information, Cadoc agrees.
Unbeknownst to all, there's a third party at play, who's been intently watching the Head Mage's daughter as she spends her time in the meadow between their lands. She's nothing like everyone says she is... and soon he finds he's fallen for her—hard.
When the Prince agrees to switch places with him for the courtship ritual, her secret admirer will have to win her heart, and Soul, sight unseen. But can they both keep pretending to be someone they're not?
Series
- Part 5 of The Butterfly Effect 💚💛🧡💜💙🩵❤️
Bookmarked by merrinbrite
01 Mar 2026
Bookmarker's Notes
This is the best fic ever, if you're stalking my bookmarks then you should read it ❤️
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After a long and strenuous day of work, a coworker you lend a helping hand to takes you out to see one of his favourite fast food stalls in a local park.
You quickly find yourself intrigued by the eccentric skeletal woman manning a hotdog stand, and end up becoming a regular for her fantastic food and funny personality.
Slowly, a friendship starts to blossom between the two of you- but even slower, you start to realise you may actually want a deeper connection from her.
What are the chances of her feeling the same way?
Series
- Part 2 of Of Myths And Monsters
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“Throw in the monster and I’ll look the other way.”
A dystopian tale of monster slavery, resistance, and the tangled bond between Red and you: his mysterious new owner.
- Language:
- English
- Words:
- 173,124
- Chapters:
- 76/?
- Comments:
- 398
- Kudos:
- 689
- Bookmarks:
- 105
- Hits:
- 20,731
Bookmarked by merrinbrite
05 Jan 2025
Bookmarker's Notes
I LOVE THIS FIC SO MUCH I NEED IT MORE ALWAYS, read up to chapter 74
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You are a college student who's got the hots for your astronomy professor, Sans. It's all one-sided, of course--or so you think. One day you get a call from Professor Sans about a paper you wrote and learn that you really need to edit your papers better before turning them in. That's okay, Sans is into it.