1 - 20 of 1228 Works in Ecto-Genitalia (Undertale)

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  1. Tags
    Summary

    Treating animals is your thing, it's your passion, you just wanted to get home, relax, watch TV with your brothers while they ate and enjoyed the rest of the day. You did not expect to hear noises in the basement to investigate and discover many skeletons discussing, a flower with anger problems, a girl and a genocidal ghost girl in your room, I think the rest will have to wait a little longer...

    You need a betta!! ;w;

    Language:
    English
    Words:
    9,831
    Chapters:
    6/?
    Comments:
    21
    Kudos:
    40
    Bookmarks:
    5
    Hits:
    1409
  2. Tags
    Summary

    So, I went back a while ago and read my original story and...
    It was a god damn dumpster fire, okay? It was a red-bull fueled lonely 20-something year old smut fanfiction. It was just...poorly written. I couldn't sit and let that define my writing skills so I'm literally re-writing this bitch. No, it's not gunna be perfect, yes, it's going to be less of an eyesore if I can help it. I'll be working on this off and on, so I hope everyone's prepared for this...and yeah, I'm gunna rush through "explaining why she's there" sometimes because nobody likes a broken record. Without further delay, here it is. Chapter 1: Revamped.

    Language:
    English
    Words:
    27,867
    Chapters:
    8/?
    Comments:
    17
    Kudos:
    4
    Bookmarks:
    1
    Hits:
    161
  3. Tags
    Summary

    Sans is conflicted by night terrors and vague memories from previous timelines gone wrong. They are starting to become more vivid and soon he starts to notice deviations from what he's grown accustomed to, and Papyrus does something unusual that changes everything.

    With the River Person out of commission, Sans accompanies Grillby on a replenishment run through to New Home, all while wrestling with a feeling he just can't break about his long-time friend. While getting to know his friend in a newer light coupled with some changes that have come up due to past medical abuse, it is becoming more and more apparent that something or someone is interfering...

    (This fic is pre-canon which will eventually progress into gameplay plot with some embellishment. Originally rated Teen, but has since been upped to Explicit for references to bad physical and emotional trauma and Sansby exploration. Smut/sexual content will have warnings at the beginning of any chapters and a brief summary in the end notes.)

    Language:
    English
    Words:
    313,831
    Chapters:
    64/?
    Comments:
    820
    Kudos:
    588
    Bookmarks:
    71
    Hits:
    10724
  4. Tags
    Summary

    Eight skeletons, one crazy world, drama and incest; my, what could possibly go wrong?

    Language:
    English
    Words:
    97,541
    Chapters:
    31/39
    Comments:
    31
    Kudos:
    53
    Bookmarks:
    4
    Hits:
    1361
  5. Tags
    Summary

    Stretch gets help with his heat

    Language:
    English
    Words:
    2,095
    Chapters:
    2/2
    Comments:
    1
    Kudos:
    33
    Bookmarks:
    3
    Hits:
    373
  6. Tags
    Summary

    这个短文集在本子剧情的大道上狂奔。

    Language:
    中文
    Words:
    5,625
    Chapters:
    9/?
    Kudos:
    436
    Bookmarks:
    3
    Hits:
    2160
  7. Tags
    Summary

    UfSans/UsPapyrus
    UsSans/UfPapyrus

    As per every reset, Sans finds himself stuck fighting Frisk. However, this time once he is dusted he wakes up almost immediately at a sentry station. He shrugs it off as a bad dream until he meets someone..Different.

    Language:
    English
    Words:
    2,546
    Chapters:
    2/?
    Kudos:
    9
    Hits:
    84
  8. Tags
    Summary

    Papyrus thinks he's made a new friend. He couldn't possibly have been more wrong.

    [author's note- i don't think ecto genitalia is canon. i regret using it for this fic. Also, I don't think there would be a consensual relationship between sans and papyrus in any context so there will be none of that.

    Language:
    English
    Words:
    7,491
    Chapters:
    2/?
    Comments:
    6
    Kudos:
    16
    Bookmarks:
    1
    Hits:
    164
  9. Tags
    Summary

    sans wakes up in a dumpster.

    This...is not as uncommon as it actually should be.

    (finally w/ actual honeymustard and unrelated: i am sorry)

    Series
    Language:
    English
    Words:
    70,520
    Chapters:
    28/?
    Comments:
    556
    Kudos:
    925
    Bookmarks:
    101
    Hits:
    20283
  10. Tags
    Summary

    Ash goes hunting for a lamia, intending to capture, but the lamia find him first.

    Language:
    English
    Words:
    23,309
    Chapters:
    13/13
    Comments:
    78
    Kudos:
    151
    Bookmarks:
    13
    Hits:
    3711
  11. Tags
    Summary

    During the most exciting work shift of your life, you get robbed at gunpoint and find out that you have a soulmate.

    This is a story about that, and the series of events that occur afterwards.

    Language:
    English
    Words:
    8,186
    Chapters:
    3/?
    Comments:
    36
    Kudos:
    267
    Bookmarks:
    47
    Hits:
    2005
  12. Tags
    Summary

    Cherryberry, quite the unappreciated ship, which is pretty crushing for me considering I am absolutely obsessed with it and it's my ultimate OTP. Well, I seek to change that, as much as I can, at least, with some silly little fanficitons. Is it porn? Probably. Is it terrible? Most definitely.

    These all take place in a larger fic with an actual plot that will eventually be posted, but is just one giant WIP right now. There will be some sad stuff in here, but nothing too serious and it'll always end in fluff. I'm saving all the true angst for the main fic.

    I'm always writing more, and this is nowhere near done!

    Language:
    English
    Words:
    113,975
    Chapters:
    25/?
    Comments:
    48
    Kudos:
    41
    Bookmarks:
    4
    Hits:
    1359
  13. Tags
    Summary

    It's been years since the barrier fell down and monsters made their way back into society. Now that it's spring love could be in the air for a young succubus. One day she meets and eventually saves a young Skeleton that works in the flower shop she frequently visits.Their friendship soon becomes love, but can a succubus, a temptress of the night, really find herself mated to a hyperactive and innocent skeleton like Sans? Read to find out.

    Series
    Language:
    English
    Words:
    46,496
    Chapters:
    21/?
    Comments:
    87
    Kudos:
    314
    Bookmarks:
    57
    Hits:
    5785
  14. Tags
    Summary

    "Originally, it was just supposed to be a one-night stand. A fling, just to get Red out of his system. It's not like he's never done it before. He hadn't expected to fall in love."

    A roleplay between two absolute nerds.

    Each chapter is planned to be 1,000+ words. (this means that so far there is the possibility of EIGHTY-EIGHT CHAPTERS. this one's gonna be a long one folks. it's going to be a ride.)

    NOTE THE RATING CHANGE!! EXPLICIT CHAPTERS WILL BE MARKED WITH AN ASTERISK (*)

     

    ROLES (to be updated as they appear in the fic):

    Modambrosia as: Red (main)

    Sham 'the Skeleton' as: Blue (main), Stretch (side)

     

    Main Characters -- Either Blue or Red. At least one of them will appear in each chapter.
    Side Characters -- Characters that will show up several times throughout the story.
    Sub Characters -- Characters that only show up once. Either verbal or non-verbal.

    Language:
    English
    Words:
    23,279
    Chapters:
    6/?
    Comments:
    24
    Kudos:
    31
    Bookmarks:
    4
    Hits:
    333
  15. Tags
    Summary

    It all started on a dark, rainy night, on the outskirts of the city, in one of the poorest of bars. Don Blake is there and he's one of the baddest of dons, but the most powerful. A beautiful singer is singing there tonight. Their beautiful silver hair, their star shape eye in their left eye socket, their beautiful, shining crystal blue eye in their right eye socket, their ruby scattered dress that covers the upper thigh, their multicolored rose in their hair. Don Blake is having a meetin' with a associate from the other side of the city and from underground of all things. How well this go down?

    Language:
    English
    Words:
    13,364
    Chapters:
    9/?
    Kudos:
    2
    Hits:
    393
  16. Tags
    Language:
    English
    Words:
    5,185
    Chapters:
    2/?
    Comments:
    6
    Kudos:
    69
    Bookmarks:
    13
    Hits:
    404
  17. Tags
    Summary

    Every other weekend, you volunteer at a soup kitchen that operates out of a homeless shelter. As part of the government-funded rehabilitation program, a pair of monsters is sent to your kitchen to aid in their therapy. The brothers, Papyrus and Sans, are now partially your responsibility. Only…the way Sans stares at you with that wild grin is kind of spooky.

    And why does he keep calling you Peaches?

    Language:
    English
    Words:
    2,388
    Chapters:
    1/?
    Comments:
    11
    Kudos:
    80
    Bookmarks:
    18
    Hits:
    394
  18. Tags
    Summary

    (timeline after Soul Mate, so probably read that first.)

    You have just graduated with your doctorate in hand, and thanks to your mom you already have a nice job in line for yourself.
    When you walk in you notice a skeleton who seems shocked at the sight of you, like he's seeing a long dead friend.
    Maybe he is. Thus starts your adventure as you learn more about yourself and the skeleton who is so very obviously trying to get you on a date.

    (Summary brought to you by: The_Rogue_Sylph)

    Act 1: Reader Ch 1 - 61
    Act 2: Sans Ch 62 - 73
    Act 3: HAM 74 - 95
    Act 4: Newest Member Ch 96 -

    Series
    Language:
    English
    Words:
    162,534
    Chapters:
    113/?
    Comments:
    2263
    Kudos:
    957
    Bookmarks:
    116
    Hits:
    25623
  19. Tags
    Summary

    smut from tumblr and other general sexies!

    Language:
    English
    Words:
    3,919
    Chapters:
    2/?
    Comments:
    3
    Kudos:
    6
    Bookmarks:
    1
    Hits:
    108
  20. Tags
    Summary

    Red gets you as a roommate for his wallet's convenience and ends up liking you a bit too much. One day, you're late coming home from work, so he decides to search your room for clues as to why. What he finds catapults you both into an awkward, tsundere dance around emotions.

    Language:
    English
    Words:
    141,478
    Chapters:
    56/?
    Comments:
    1456
    Kudos:
    1089
    Bookmarks:
    160
    Hits:
    21208

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