10 Works by grayishaffinity in Undertale (Video Game)
Listing Works
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heard your boyfriend was away this weekend by grayishaffinity, MinkyMomouuu
Fandoms: Undertale (Video Game)
28 Jul 2025
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Summary
is this the mettakaard fwb origin story...?
anyway basically. mettaton and rouxls have sex and the latter realizes a few things about himself.. this is a horrible summary sorry
p.s. i made grayish write MOST of this in one night before we could watch 911 together
p.p.s. no one tells you how hard it is to write m/m without it being a nonsense mishmash of "he him he his him he" -
you and i got lost along the way by grayishaffinity, MinkyMomouuu
Fandoms: Deltarune (Video Game), Undertale (Video Game)
07 Jul 2025
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Summary
wyd if you fall in love with someone and then get sent into an alternate universe where he doesn't seem to exist but there's Remnants of him everywhere you Look
that's like halfway in though. i don't have a summary for the beginning. fucj around and find out
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Hooray! King Mettaton Episode! by datm, grayishaffinity, MinkyMomouuu, visibrans, WPuppetMar
Fandoms: Undertale (Video Game)
06 Jun 2025
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Summary
PRIMARILY WRITTEN BY MINKYMOMOUUU AND GRAYISHAFFINITY!!!!
9/28/25: WE'RE REMASTERING THE FIC! Adding sections and rewriting some chapters. Remastered chapters will be marked in their summaries. Hooray!
Series
- Part 1 of HKME
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when u nut and he keep suckin by grayishaffinity, MinkyMomouuu
Fandoms: Undertale (Video Game)
26 Mar 2025
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Summary
It's all in the tags man. Mettaton sucks dick. Yay?
ccoughs the bulk of this was written in one night at like 3-5am by grayish. it was rotting in our google docs for far too long so we decided to just FINISH IT. i'm sure you can tell all this as you read
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no a skeleton walks into the closet i think by grayishaffinity, MinkyMomouuu
Fandoms: Undertale (Video Game)
20 Mar 2025
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Summary
It's party time at the skeletons' house, as per usual, and what better game to play than seven minutes in heaven?
Too bad Mettaton has to play with Sans. -
oh they're doing it on the floor. Ok i guess by grayishaffinity, MinkyMomouuu
Fandoms: Undertale (Video Game)
27 Jan 2025
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Summary
exactly what it says in the title. sans and mettaton fuck on the floor of mettaton's dressing room. cool
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what's the name of the game by grayishaffinity, MinkyMomouuu
Fandoms: Undertale (Video Game)
12 Jan 2025
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Summary
mettaton wasn't prepared to be hated by online losers, and decides to take that out on sans! they have an argument or whatever! i dont know im tired
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damn you look good and i'm drunk by grayishaffinity, MinkyMomouuu
Fandoms: Undertale (Video Game)
31 Dec 2024
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Summary
mettaton gets shitfaced and makes out with sans! i suppose this is like a prequel to the other three fics that Kind Of follow some kind of continuity. lalala
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what do you do with a loving feeling if they only love you when you're all alone by grayishaffinity, MinkyMomouuu
Fandoms: Undertale (Video Game)
16 Dec 2024
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Summary
tifu by trying to break up with my boyfriend which would have the opposite outcome from what i want
aka mettaton and sans have a discussion! yeah
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you heard what i said boy! i want you in my bed! by grayishaffinity, MinkyMomouuu
Fandoms: Undertale (Video Game)
09 Dec 2024
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Summary
mettaton abandons a slumber party to go have sex with his secret boyfriend!
that's basically itthis was grayish's first time writing smut so. bear with us if it sounds a little stiff or flows weird ^-^