Advid_Undertale_Reader



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  1. Public Bookmark 30

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    Summary

    “so, you’re uh…” the blue skeleton in front of Sans had an odd pinched expression.

    “an advanced AI” Sans clarified and his social program hissed at him to relax his posture “nothin’ more an’ nothin’ less”

    Sans’ analytics quickly gathered the expression of each skeleton monster in the room to come to the conclusion that something was off. He carefully noted the odd atmosphere as the chime of a directive made itself known.

    FIND A WAY HOME

    Something in him settled and the red circlet at his temple evened out to a mild yellow.

    “you sure about that pal?” the first skeleton’s red twin said as he picked his golden tooth after a pause.

    “my social programming’s pretty complex, it can be hard to tell i‘m just a machine” Sans tried not to let incredulity sneak into his voice—of course he was sure.

    “THAT CAN’T BE RIGHT” a lighter blue skeleton said rather intensely and Sans’ analytics scrambled to see where he went wrong “YOU HAVE A SOUL. RAZZ CHECKED YOU EARLIER”

    Sans blinked at the accusation.

    Or

    Sans is pretty convinced he’s a machine, everyone else is convinced he’s got issues.

    Series
    Language:
    English
    Words:
    74,492
    Chapters:
    6/?
    Comments:
    98
    Kudos:
    135
    Bookmarks:
    30
    Hits:
    1,963

    17 Jul 2026

  2. Public Bookmark 48

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    Summary

    You somehow got transmitted into a popular romance visual novel about dating skeletons?

    You were put into a role of an NPC who helps players win the hearts of their Soulmate with various items you have in your little shop. Luckily, you weren’t interested in getting into a relationship soon and thought that you’ll be living in solitude happily, but fate has other plans for you-

    “Greetings, how can i he-”
    “WOWIEE! I DIDN’T KNOW THERE’S A SHOP NEARBY!”
    -By adding a couple of bones on you.
    “…. Wuh?”

    Language:
    English
    Words:
    11,534
    Chapters:
    6/60
    Comments:
    45
    Kudos:
    155
    Bookmarks:
    48
    Hits:
    1,755

    15 Jul 2026

  3. Public Bookmark 25

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    Summary

    Hmm, such a thing of wonder in this crowd
    I'm a stranger in this town
    You're free with me
    And our eyes locked in downcast love
    I sit here proud
    Even now you're undressed in your dreams with me

    ~~~~~~~

    You didn't cheat out of retaliation. To make things even. Perhaps some part of you did, a small vindictive part that had been simmering ever since you found those lipstick marks on his collar, and perfume wafting off of his clothes that certainly wasn't yours.

    No, you just wanted someone to touch you, needed it after a year of just you and your fingers. And, oh, that skeleton you found at the club? He most certainly knew how to do that, and then some.

    But, Alas, you only planned for it to be a one time thing, a nice night to help fill that ache in your chest, for now, atleast, until it came crawling back. You didn't think you would ever see him again.

    And then you did.

    Over

    And Over.

    ~~~~~~~

    《Underfell! Sans x Reader fic》

    Language:
    English
    Words:
    39,458
    Chapters:
    9/?
    Comments:
    41
    Kudos:
    154
    Bookmarks:
    25
    Hits:
    2,390

    11 Jul 2026

  4. Public Bookmark *

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    Summary

    Price, Ghost, Soap, and Gaz all enlisted when they were practically kids and the military basically raised them as a result. They know how to dismantle a rifle blindfolded, patch a sucking chest wound, and conduct recon in hostile territory; but put them in a normal house, in a normal neighborhood, in a normal environment and suddenly it’s game over.

    Because they’re bad at it. Really bad. By Day Three you have already decided that the four men across the street are either undercover agents, aliens trying out human cosplay, or the weirdest polycule of gay men on the eastern seaboard.

    Because how the fuck do four fully grown men collectively fail to figure out how to operate a lawn mower or light a grill without a column of flame visible to the ISS?

    Or: A comprehensive log of why your home insurance premium is about to skyrocket.

    Language:
    English
    Words:
    30,713
    Chapters:
    9/?
    Comments:
    162
    Kudos:
    772
    Bookmarks:
    155
    Hits:
    12,226

    05 Jul 2026

  5. Public Bookmark 36

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    Summary

    141 x f!reader
    You wanted to get into porn and your friend recommends an upscale private club where men pay for women.

    Things seem to be going well when you find yourself enthralled with a mysterious group of men who seem to know more than they’re letting on

    Language:
    English
    Words:
    10,458
    Chapters:
    4/6
    Comments:
    13
    Kudos:
    181
    Bookmarks:
    36
    Hits:
    3,446

    02 Jul 2026