1 - 20 of 109 Works in Ecto-Tentacles (Undertale)

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  1. Tags
    Summary

    [Based on Skumhuu's Merperson AU]

    Cross has been an outsider for years, alone and unwanted, until he finds a place with the sweet goldfish mer named Dream and his terrifying brother Nightmare, a kracken of the deep. Nightmare's domain is a graveyard of bones and sunken ships, a warning against those that would try to harm his most precious treasures: his brother and his people.

    Language:
    English
    Words:
    2,874
    Chapters:
    1/1
    Comments:
    6
    Kudos:
    127
    Bookmarks:
    19
    Hits:
    410
  2. Tags
    Summary

    Nightmare is more than just a bad guy. He and his poly protect others, too. Maybe they can help Blue out of a bad situation.

    Series
    Language:
    English
    Words:
    3,167
    Chapters:
    2/?
    Comments:
    23
    Kudos:
    106
    Bookmarks:
    24
    Hits:
    853
  3. Tags
    Summary

    Waking up in an uncomfortable position in a bed or on the floor would be so much better than what these 8 people woke up to. Not only are they unsure of what world they are in, but they are caught in a highly illegal place where unspeakable acts are forced on the people trapt in it: They're put in cells with one another to create future soldiers to be sold to the black market, and that is wording it lighter.
    It sounds like something that could never happen, but it is happening to them...

    Series
    Language:
    English
    Words:
    26,910
    Chapters:
    7/?
    Kudos:
    15
    Bookmarks:
    1
    Hits:
    1182
  4. Tags
    Summary

    Time to get those bones. >;D

    Seriously though, I can't believe I made it through this year to do this again! Now that I'm a little more organized, I can tell you that this is going to be a collection of hot garbage smut involving only Reader-insertXCannon pairings.

    If that's your cup of tea, jump on in. A quick warning, as I forgot to mention, there's gonna be some dark smut fics this year. I'll mark them out at the beginning, so please, pay attention to the tags and the author's notes. Thanks ^^

    Language:
    English
    Words:
    85,963
    Chapters:
    22/31
    Comments:
    236
    Kudos:
    395
    Bookmarks:
    44
    Hits:
    13486
  5. Tags
    Summary

    You and Sans had been together for a little while now. Things seemed to be going great, then all of a sudden he started acting really off.

    What could be going on with your skeleton boyfriend?

    Language:
    English
    Words:
    5,590
    Chapters:
    1/1
    Comments:
    8
    Kudos:
    90
    Bookmarks:
    12
    Hits:
    934
  6. Tags
    Summary

    A book for me to put random drabbles, or write down ideas for drabbles/books I want to make.

    Language:
    English
    Words:
    9,688
    Chapters:
    13/?
    Comments:
    42
    Kudos:
    148
    Bookmarks:
    14
    Hits:
    1819
  7. Tags
    Summary

    You are heir to a very successful family, very well known, well liked, fair, and deadly. You do not bend to no one. However that strong will will end up being your downfall when you bring unwanted attention to yourself .

    that's all I'm telling youz...otherwise it will give way for spoilers...the less you know the better. suckers.

    Language:
    English
    Words:
    29,579
    Chapters:
    8/?
    Comments:
    80
    Kudos:
    84
    Bookmarks:
    10
    Hits:
    1636
  8. Tags
    Summary

    As a necromancer, you’re used to suspicious stares and whispers of heresy from the townsfolk. It only gets worse after you’re killed and walk Ebott Empire as an undead skeleton.
    When you hear rumors of a strange settlement that worships the undead, it’s too tempting to resist. The locals treat you better than you’ve ever been treated. That is, right up to the moment where you’re dressed up and tied to an altar as a sacrificial bride for their skeleton gods.
    Despite their advanced technology and magical prowess, you’re doubtful of their divinity. What kind of gods blush whenever they see a bit of bone?

    Language:
    English
    Words:
    38,976
    Chapters:
    10/?
    Comments:
    256
    Kudos:
    672
    Bookmarks:
    140
    Hits:
    9651
  9. Tags
    Summary

    While on a walk through the woods Sans stumbles onto something unusual: a group of monsters he'd never seen before having a party. He's about to back out and leave them be when he's spotted and invited in. Well it would be rude to refuse such a generous invitation.

    Series
    Language:
    English
    Words:
    6,623
    Chapters:
    1/1
    Comments:
    12
    Kudos:
    36
    Bookmarks:
    6
    Hits:
    511
  10. 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!

    Red unwittingly gets saved by those peaceful conversations. Apparently even a cold-hearted predator can fall in love. And from there, their family keeps growing as more lost souls are saved by the siren’s call that sings of peace, love, and family, no matter how terrible of a monster you were in the past.

    Language:
    English
    Words:
    132,673
    Chapters:
    45/?
    Collections:
    1
    Comments:
    1389
    Kudos:
    1097
    Bookmarks:
    186
    Hits:
    19828
  11. Tags
    Summary

    This is about Sans and Papyrus having a younger sister who "dies" a long time before Frisk falls. But did she? Once the monsters are freed things change. Gaster is alive. He meets a young human girl and she isn't who she seems to be. Who is this girl? And what will the Undertale crew do when they find out her secrets? And what would happen if she is taken away from them? Read to find out!

     

    I ALSO DID NOT REALIZE FOR LIKE A WEEK THAT I SPELLED THE TITLE WRONG

    Language:
    English
    Words:
    36,890
    Chapters:
    20/20
    Comments:
    20
    Kudos:
    12
    Bookmarks:
    5
    Hits:
    547
  12. Tags
    Summary

    Apparently, with death there came no rest.

    Aphra had been nearing thirty years old when they had died, and of a car accident, no less. And you'd think that'd be the end of it, that they'd go to wherever people go when they kick the bucket, but no. No, it couldn't be that easy for them. Instead, they, or more accurately their soul had been transferred to an alternate universe where a 𝘷𝘪𝘥𝘦𝘰 𝘨𝘢𝘮𝘦 was real.

    And to make it even better, they were a skeleton and surrounded by alternate versions of both them and their brother. And they have a 𝘣𝘳𝘰𝘵𝘩𝘦𝘳 now, can you believe that? They can't make it seem as though they're anything that they're not, they don't know what would happen otherwise. Definitely not anything good, from how some of the other versions are looking at them.

    Language:
    English
    Words:
    3,145
    Chapters:
    2/?
    Comments:
    43
    Kudos:
    105
    Bookmarks:
    27
    Hits:
    720
  13. 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:
    54,608
    Chapters:
    8/69
    Comments:
    26
    Kudos:
    139
    Bookmarks:
    30
    Hits:
    2310
  14. Tags
    Summary

    Each chapter will have a list of kinks as well as the pairing for that chapter. Tags for the collection will change as new chapters are added. Enjoy!

    Language:
    English
    Words:
    10,093
    Chapters:
    10/35
    Comments:
    61
    Kudos:
    254
    Bookmarks:
    29
    Hits:
    8221
  15. Tags
    Summary

    You're not superstitious in the slightest; you just really like the aesthetic of that dreamcatcher you found in that old antique shop. And yet, the words of the antique shop owner ring in your ears.

    “I see your mind is set and I relinquish it into your care. A word of caution, lad; if you leave it up on a full moon, I cannot guarantee your safety.”

    But that's ridiculous. There's no way this dreamcatcher can bring you any real harm... right?

    Language:
    English
    Words:
    19,437
    Chapters:
    1/1
    Comments:
    20
    Kudos:
    155
    Bookmarks:
    29
    Hits:
    1552
  16. Tags
    Summary

    While finishing up a game of alcoholic truth or dare with Sans, you accidentally speak some of your thoughts out loud.

    Things didn’t start off dirty, matter of fact, Sans wouldn’t stop laughing...

    But when you became bold enough to press the question again, the answer you got was more “tenta-cool” than you expected it to be.

     

    Oh ya, and sexy. Really sexy.

     

    Guess it’s your own fault for opening your mouth. Literally.

    Series
    Language:
    English
    Words:
    1,255
    Chapters:
    1/1
    Collections:
    1
    Comments:
    8
    Kudos:
    103
    Bookmarks:
    5
    Hits:
    1504
  17. Tags
    Summary

    Night summons a demon, then suffers the consequences

    Language:
    English
    Words:
    10,313
    Chapters:
    4/?
    Comments:
    2
    Kudos:
    88
    Bookmarks:
    10
    Hits:
    1125
  18. Tags
    Summary

    Some stuff from the comments,

    The place where u find buried secrets....treasures.....untold tales of old....

    And a nsfw collab apparently

    Series
    Language:
    English
    Words:
    4,555
    Chapters:
    2/2
    Comments:
    81
    Kudos:
    79
    Bookmarks:
    7
    Hits:
    1312
  19. Tags
    Summary

    In which two cephalopods and a glitched out spooder, decides to do the tango

    Language:
    English
    Words:
    1,582
    Chapters:
    1/1
    Comments:
    3
    Kudos:
    87
    Bookmarks:
    17
    Hits:
    875
  20. Tags
    Summary

    Many Sans and Sanses come together and they do things, like cuddling and fricking.

    Language:
    English
    Words:
    8,071
    Chapters:
    7/31
    Collections:
    1
    Comments:
    9
    Kudos:
    234
    Bookmarks:
    24
    Hits:
    5592

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