121 - 140 of 174 Works in Ecto-Tentacles (Undertale)

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  1. Tags
    Summary

    Dream mistakenly finds himself in Nightmare’s abode. He may not understand why, but his brother is more than happy to educate him.

    Series
    Language:
    English
    Words:
    6,772
    Chapters:
    1/1
    Comments:
    8
    Kudos:
    188
    Bookmarks:
    20
    Hits:
    5,121
  2. 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:
    7,459
    Chapters:
    11/?
    Comments:
    21
    Kudos:
    355
    Bookmarks:
    34
    Hits:
    9,070
  3. Tags
    Summary

    Toriel and Asgore discuss Sans' first time with them...with sex.

    Series
    Language:
    English
    Words:
    784
    Chapters:
    1/1
    Comments:
    3
    Kudos:
    115
    Bookmarks:
    7
    Hits:
    3,105
  4. 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.
    -
    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
    Comments:
    4
    Kudos:
    31
    Bookmarks:
    3
    Hits:
    644
  5. 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:
    14
    Bookmarks:
    1
    Hits:
    648
  6. 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:
    19
    Kudos:
    459
    Bookmarks:
    58
    Hits:
    11,421
  7. 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:
    50
    Bookmarks:
    11
    Hits:
    2,264
  8. 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:
    208
    Bookmarks:
    26
    Hits:
    5,737
  9. 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:
    33
    Kudos:
    475
    Bookmarks:
    59
    Hits:
    6,808
  10. 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:
    30,554
    Chapters:
    18/18
    Comments:
    114
    Kudos:
    99
    Bookmarks:
    10
    Hits:
    9,325
  11. 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:
    4
    Kudos:
    19
    Bookmarks:
    1
    Hits:
    879
  12. 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 by 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:
    396
    Kudos:
    541
    Bookmarks:
    66
    Hits:
    14,968
  13. Tags
    Summary

    He initially thought it would’ve much harder to wake up himself without waking Sans, but he hadn’t counted on a key difference between them. They were both heavy sleepers by nature, but… Sans had grown up in a universe that was safe. Where he’d never had to startle awake at night to defend himself and his bro lest they die to the exp hunters. That simple fact gave Red an edge. He was awake. Sans slept.

    Perfect.

    -

    My gift for the Undertail Secret Santa.
    The Prompt: Kustard, Somnophilia, preferably with Red getting up to the funny business. If tentacles get involved, that's a bonus.

    Language:
    English
    Words:
    1,237
    Chapters:
    1/1
    Comments:
    4
    Kudos:
    330
    Bookmarks:
    18
    Hits:
    4,074
  14. Tags
    Summary

    It's that time of year again!

    Zion: In which Chaos tries to pair the Mania bros with all the other skeles.

    Chaos: THE POOR SMOL BEANS NEED ALL THE LOVE!

    Warning: Here there be rare pairs, many of the chapters involving the Maniatale brothers, though there is some rottenjoke, spicybbq sauce, cherryblossom, lazyberry, honeyketchup, Kedgeup, whatever Blue/Papyrus is -YOU GET OUR POINT.

    Language:
    English
    Words:
    23,542
    Chapters:
    11/33
    Comments:
    36
    Kudos:
    74
    Bookmarks:
    13
    Hits:
    4,558
  15. Tags
    Summary

    Sex.
    In human culture, it is both vilified as well as romanticized. Young people are both discouraged and encouraged to have it, and especially in a college party atmosphere, the mixed signals can be stressful.
    Then the monsters came to the surface, and from the other universes. It was never fully explained why or how, but it happened, and they were quick to stick together. Within months, Undertail University was founded by Dr. W. D. Gaster, and it gained a reputation as a thriving college atmosphere that boasted high graduation and success rates. It also boasted a very different view of sex, one that monsters had been entertaining for centuries.
    Somehow, against all odds and despite what people said, you’d applied.
    Somehow, you’d been accepted.
    And somehow, for some unknown reason...you’d enrolled.
    (Based on the headcanons of Skelltales and the #discordcrew on Tumblr, as well as some of my own. Written with permission.)

    Language:
    English
    Words:
    20,022
    Chapters:
    8/?
    Comments:
    334
    Kudos:
    959
    Bookmarks:
    205
    Hits:
    16,854
  16. Tags
    Summary

    31 days of sin.

    Language:
    English
    Words:
    26,760
    Chapters:
    31/31
    Collections:
    2
    Comments:
    35
    Kudos:
    383
    Bookmarks:
    30
    Hits:
    20,929
  17. Tags
    Summary

    You never really know when you'll run into someone who makes your life really worth living...

    A second chance can be a rarity, but you may as well make the most of it.
    Love can take the form of many things, changing your development as a person in different ways. He may not have skin or organs, but you've managed to steal his heart.

    (Inspired by Overgrowth as well as some other fictions depicting alternate universes and endings)

    Language:
    English
    Words:
    743
    Chapters:
    1/?
    Comments:
    1
    Kudos:
    23
    Bookmarks:
    2
    Hits:
    668
  18. Tags
    Summary

    Sans is calm and cheerful, which is just what Napstablook needs for tonight.

    He feels proud of his job.

    Series
    Language:
    English
    Words:
    4,511
    Chapters:
    1/1
    Comments:
    27
    Kudos:
    259
    Bookmarks:
    12
    Hits:
    3,812
  19. Tags
    Summary

    Hey everyone!

    I recently opened up my Tumblr for some requests. I was thinking maybe I'd get 1 or 2... but I'm still working through them. So this would be a constant WIP.

    Beware the story with rape/non-con elements: Alphys/Gaster, Fellcest, the ErrorInk at Ch. 24, the Edgeberry in Ch. 28. Please avoid if triggered or uncomfortable.

    Anyways, enjoy and please tell me what you think.

    Language:
    English
    Words:
    61,325
    Chapters:
    76/?
    Comments:
    178
    Kudos:
    494
    Bookmarks:
    28
    Hits:
    18,926
  20. Tags
    Summary

    Lots of sin! Don't like, Don't read. Hope you enjoy anyways! I'm not very good with the smutty stuff, so I try my best to please everyone!

    Language:
    English
    Words:
    13,541
    Chapters:
    12/?
    Comments:
    4
    Kudos:
    32
    Bookmarks:
    1
    Hits:
    2,449

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