1 - 20 of 76 Works in Ecto-Tentacles (Undertale)

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  1. Tags
    Summary

    With Monsters finally on the surface, Sans is looking for a purpose. Finding an interesting soul, curiosity digs its claws in deep, causing him to stumble and fall and fumble his way through a friendship with an intense side of attraction. Could she become his purpose?
    Going to try to be a slow burn, lots of drama and angst, topped with eventual smut and romance. Seriously intense attraction and denial.

    Language:
    English
    Words:
    3,915
    Chapters:
    3/?
    Kudos:
    4
    Bookmarks:
    2
    Hits:
    75
  2. Tags
    Summary

    Sans and Papyrus have been dating for some time. They have to keep their relationship a secret, for fears of being torn apart.

    Sans is afraid of moving onto the next step, but Papyrus is very helpful in convincing him.

    Basically Papyrus is really hot and Sans is too cute for his own good.

    30 day nsfw otp challenge

    Language:
    English
    Words:
    9,512
    Chapters:
    11/31
    Comments:
    2
    Kudos:
    54
    Bookmarks:
    10
    Hits:
    1178
  3. Tags
    Summary

    Mermaids are the social butterflies of the sea, living in sunny, shallow water together with the rest of their school. On the other end of the spectrum, meroctopuses are violent, antisocial fucks who like the cold and the dark, and who basically kill any competing predator they see.

    But they aren’t stupid.

    Red is proof of that, using his traps to hunt for food and saving his energy to ward off predators. So, how does he react when he finds the laziest creature in the ocean stealing his catch?

    Bribe him with more food in exchange for peaceful company, of course! The ocean is fucking lonely for giant predatory mer!

    Language:
    English
    Words:
    55,543
    Chapters:
    17/?
    Comments:
    482
    Kudos:
    455
    Bookmarks:
    81
    Hits:
    4528
  4. Tags
    Summary

    oh you know that good shit

    Language:
    English
    Words:
    78
    Chapters:
    1/1
    Kudos:
    2
    Bookmarks:
    1
    Hits:
    189
  5. Tags
    Summary

    PLEASE DO NOT THINK THIS IS A REFLECTION OF MY ACTUAL WRITING ABILITIES. I made this just for fun and to boost my overall wordcount. Also, I had an explicit rule against ever using the backspace key.
    Anyway. I'm porting this from my wattpad, Gravitea0.
    -
    follow sans undertale and komaeda danganronpa an a nigh--imcomprehensible romanctic journey through life as they uh. they dont actually do much. theres uhhhhh uh im not sure i wrote this and i have n o idea what happens. theres not even sex in every chapter. i wrote an enitere chapter where nothign explicit happened. i wwrote two entire chatpeters with nOTHING.

    Language:
    English
    Words:
    3,841
    Chapters:
    3/4
    Kudos:
    3
    Hits:
    92
  6. Tags
    Summary

    ꜱᴇʀɪᴇ - ᴄᴏʀʀᴜᴩᴄɪóɴ ꜱᴛᴀʀꜱ ꜱᴀɴꜱᴇꜱ; ᴩᴀʀᴛᴇ 2

    "Vamos pequeño soñador, dejame conocerte mejor, veremos si así, podemos crear algo perfecto."

    ¿Vɨɇnɇs?

    Advertencia: Alto contenido de NSFW, Y A O I, NON-CON( VIOLACIÓN ), DUB-CON, TORTURA, GORE.

    Series
    Language:
    Español
    Words:
    8,904
    Chapters:
    1/1
    Kudos:
    3
    Hits:
    68
  7. Tags
    Summary

    The Horror Bros have taken care of you for a while now, and you've made them happier than they've been in so long.

    They're going to show you just how you make them feel.

    Language:
    English
    Words:
    6,248
    Chapters:
    1/1
    Collections:
    1
    Comments:
    14
    Kudos:
    158
    Bookmarks:
    14
    Hits:
    2546
  8. Tags
    Summary

    A collection of poorly written smut and weird oneshots

    The character will be named from now on, but this can be ignored

    Language:
    English
    Words:
    3,204
    Chapters:
    3/100
    Kudos:
    7
    Bookmarks:
    1
    Hits:
    330
  9. Tags
    Summary

    Gaster and Sans have a good time stuffing each other, first few chapters will be nothing but fluff but nsfw will come later.

    Language:
    English
    Words:
    1,386
    Chapters:
    2/2
    Kudos:
    16
    Hits:
    565
  10. Tags
    Summary

    Chaos: Self indulgent fluff and sin! I like me a good reverse harem fic, and what better than a reverse harem fic where one skele gets the other nine?

    Zion: This entire thing is just my gift to Chaos who wanted a skele only harem fic. If anything is questionable well, blame her xD the whole thing is just to indulge my partner.

    Language:
    English
    Words:
    30,782
    Chapters:
    3/69
    Comments:
    1
    Kudos:
    46
    Bookmarks:
    9
    Hits:
    635
  11. Tags
    Summary

    Sai, who works with Gaster at his lab, has become a regular at the coffee shop that Grillby now works at. Both monsters develop a definite infraction with the beautiful woman, but it isn't until a fated chain reaction occurs, that she falls into both of their laps and their hearts.

    But what if it wasn't only monsters that become entranced with the human?

    Gift Fic for the one an only amazing Sai
    Written by Canadian_BuckBeaver

    Language:
    English
    Words:
    24,637
    Chapters:
    10/?
    Comments:
    25
    Kudos:
    37
    Bookmarks:
    3
    Hits:
    1528
  12. Tags
    Summary

    Here's the stash of NSFW I write! Contains lots of Selfcest of the Sans variety, but also some other things!

    Language:
    English
    Words:
    7,416
    Chapters:
    10/?
    Comments:
    9
    Kudos:
    134
    Bookmarks:
    15
    Hits:
    3000
  13. Tags
    Summary

    (Horror) Sans enjoyed watching you and his brother together. Whether it was cooking, working in the garden, or just generally enjoying one another's company.

    What he hadn't expected was to enjoy watching you two more closely, when you thought no one was looking. When you assumed you were alone.

    When you were more intimate.

    Language:
    English
    Words:
    3,073
    Chapters:
    1/1
    Collections:
    1
    Comments:
    13
    Kudos:
    105
    Bookmarks:
    15
    Hits:
    2098
  14. Tags
    Summary

    Failure. Reset. Failure. Reset. Failure. Reset.

    This time, you fall into the Underground weeks before the 'Eighth' Human child arrives. But you’re not a child. And not many monsters expected to see an adult human in the Underground... not even Sans. You definitely aren’t supposed to be here.... or maybe you are? Maybe you’re the anomaly that can finally stop this endless cycle of resets?

    Or maybe you'll just get stuck in it with the rest of them.

     

    The “reader” is technically a young adult (twenties), female OC whose story is told through the second person. This was done to keep the story's POV similar to the game's POV.

    Language:
    English
    Words:
    14,659
    Chapters:
    8/?
    Collections:
    4
    Comments:
    39
    Kudos:
    164
    Bookmarks:
    32
    Hits:
    1236
  15. Tags
    Summary

    Life in Swapfell can make even the most patient monsters frustrated, angry even. Except for Razz, he gets downright murderous. But that's not so bad when someone else is begging for you to break their bones.

    Language:
    English
    Words:
    48,098
    Chapters:
    10/?
    Comments:
    38
    Kudos:
    71
    Bookmarks:
    9
    Hits:
    1137
  16. Tags
    Summary

    This is a NSFW addition to my main story, Dear Hearts and Gentle People! The Horrortale Bros finally get to show their love for the Reader!

    https://archiveofourown.org/works/18290738/chapters/43289837

    You kinda want to read that one to get some basis as to how Reader got to where she is, but if you're just looking for smut with both the Horror Bros on the surface, then that works, too!

    Language:
    English
    Words:
    4,406
    Chapters:
    1/1
    Collections:
    1
    Comments:
    29
    Kudos:
    234
    Bookmarks:
    22
    Hits:
    2468
  17. Tags
    Summary

    { s&m: also known as "souls & magic" }

    A collection of Character/Reader(s). Kinks & Smut. Requests are currently CLOSED !!

    Language:
    English
    Words:
    21,859
    Chapters:
    12/?
    Comments:
    85
    Kudos:
    738
    Bookmarks:
    97
    Hits:
    29919
  18. Tags
    Summary

    I'm trying my hand at this, because I failed last year 8,D

    All gonna be pairings from my fic/series Tag's Multierse

    MIND THE TAGS

    Series
    Language:
    English
    Words:
    32,098
    Chapters:
    19/31
    Comments:
    36
    Kudos:
    50
    Bookmarks:
    9
    Hits:
    4413
  19. Tags
    Summary

    Alphys investigates some strange noises coming from the True Lab. Christmas Gift for Sandbirde.

    [Join my Discord server!]

    Series
    Language:
    English
    Words:
    2,474
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    8
    Bookmarks:
    1
    Hits:
    213
  20. Tags
    Summary

    WHORE
    /hɔː/
    noun
    1.
    a prostitute or promiscuous woman: often a term of abuse
    verb (intransitive)
    2.
    to be or act as a prostitute
    3.
    (of a man) to have promiscuous sexual relations, esp with prostitutes
    4.
    (often foll by after) to seek that which is immoral, idolatrous, etc

     

     

    You met the love of your life at just the age 13, having a sweet baby girl not too long after. 7 Years later you, your darling husband, and your daughter Frisk move into a small town called Underville populated with mostly monsters. The house you're renting out is owned by a monster named Sans Snowdin. He's short, stubby and plain looking to the naked eye, however to you there's something more. You don't know what it is about this guy but you're tempted by him in every way. You have the perfect house and the prefect family.

     

    So why are you fucking around with the landlord?

    Language:
    English
    Words:
    31,607
    Chapters:
    25/?
    Comments:
    384
    Kudos:
    462
    Bookmarks:
    59
    Hits:
    11937

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