1 - 20 of 1124 Works in Ecto-Genitalia (Undertale)

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  1. Tags
    Summary

    It has been a few months after the final reset for both Undertale and Underfell and its Gyftmas time, and Red is invited to Sans and Papyrus' Gyftmas party, although it seems to go another way.

    Series
    Language:
    English
    Words:
    6,745
    Chapters:
    3/?
    Kudos:
    14
    Hits:
    326
  2. Tags
    Summary

    Starring Spot and Voidster, before they ended up in The Sin Mansion.

    You're just trying to catch a break from your abusive boyfriend when you head up to Mt. Ebott, but things go from bad to worse when you fall into the Underground in the middle of a reset. Battered by kindness and cruelty, you do your best to survive as you get dragged between timelines. During your journey, you meet a doctor who struggles with morality and the fate of his people; the cruel, perverse skeleton that assists him; a kinder, gentler version of that skeleton; and a man so terrifying that he may destroy everyone you've come to care about. This story takes place in both Undertale and Underfell, as well as the void between worlds...

    PART ONE STATUS: 43/43 Chapters (COMPLETED)
    PART TWO STATUS: 27/27 Chapters(COMPLETED)
    PART THREE STATUS: 9/?? Chapters

    Explicit chapters have been tagged, and I have provided chapter summaries in the end notes for those who want to enjoy the story without seeing the worst of the non-con/dub-con stuff. This fic heavily features W.D. Gaster and Sans as the two main love interests.

    Language:
    English
    Words:
    183,092
    Chapters:
    80/?
    Comments:
    1645
    Kudos:
    1833
    Bookmarks:
    222
    Hits:
    49438
  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. Hardship, embarrassment and mystery abound.

    (This fic is Pre-Pacifist/pre-canon with some embellishment, Rated T for Chapters 1-18, M for 19-43 for references to bad trauma and Sansby exploration. Final rating is Explicit - such content will have warnings at the beginning of any chapters and a brief summary in the end notes. Explicit scenes may be referenced by characters in the future so "E" rating it is.)

    Language:
    English
    Words:
    231,873
    Chapters:
    50/?
    Comments:
    525
    Kudos:
    373
    Bookmarks:
    44
    Hits:
    6264
  4. Tags
    Summary

    UF!Санс ссорится со своим братом и не знает, что ему делать. В конечном итоге он попадает в UnderTale вселенную, где встречает чертовски добрых Санса и Папируса.

    UF!Сансу придётся разобраться со своей депрессией и новообретёнными чувствами к двум другим скелетам.

    Language:
    Русский
    Words:
    56,530
    Chapters:
    17/44
    Kudos:
    5
    Hits:
    182
  5. 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:
    88,664
    Chapters:
    39/?
    Comments:
    862
    Kudos:
    737
    Bookmarks:
    104
    Hits:
    12541
  6. Tags
    Summary

    Sans has angered Grillby, causing the bartender to kick him out for the night, or until he pays his tab, whichever comes first. However, as he is cleaning up, there is a special visitor, one who attempts to sway Grillby's mind, the one way he knows that he can.

    And it is probably better that Sans doesn't find out.

    Language:
    English
    Words:
    2,195
    Chapters:
    1/1
    Comments:
    6
    Kudos:
    15
    Bookmarks:
    1
    Hits:
    64
  7. Tags
    Summary

    Retail... The line of work that is an absolute nightmare where you get paid (not enough) for customers to yell at you. Yay. Julia wants to find a new fucking job so badly, but makes the most of it with her current job as a cashier at a local grocery chain. One day after she clocked out early from work to get some dinner shopping done, there was a loud commotion coming from one of the aisle. It was a bunch of skeletons monsters with two of the shorter ones were arguing about dinner plans.

    FuckThisShitI’mOut.GIF

    ...Nope, not really. Julia caught their attention and while she thinks this was a one time encounter, fate has other plans for her. FML amirite?

    ACTION! DRAMA! ROMANCE! SEXUAL TENSION!

    Who shall win the human’s affection?!

    The dashing skeleton with the boyish charm? THE MAGNIFICENT BLUEBERRY?!

    Or...

    Will it be edgy little prince who commands with an iron fist? THE MALEVOLENT BLACKBERRY?!

    Find on now on our new series...

    BERRY WARS!!!!!

    Language:
    English
    Words:
    24,399
    Chapters:
    7/?
    Comments:
    43
    Kudos:
    110
    Bookmarks:
    23
    Hits:
    1385
  8. Tags
    Summary

    You find yourself out of a job, on the verge of getting kicked out of your apartment because you can't pay the rent and no where to go. Until your newest skeleton friend suggests you move in with them and their cousins until you get back on your feet again. You didn't expect to like living with this many people at once so much though...

    Language:
    English
    Words:
    35,052
    Chapters:
    9/?
    Comments:
    181
    Kudos:
    299
    Bookmarks:
    70
    Hits:
    3668
  9. Tags
    Summary

    31 NSFW drabbles featuring everybody's favorite skeleton: Papyrus. Pairings and kinks are also in the titles for easy navigating. Warnings at the start of each chapter.

    Language:
    English
    Words:
    13,655
    Chapters:
    25/31
    Comments:
    50
    Kudos:
    226
    Bookmarks:
    18
    Hits:
    8138
  10. Tags
    Summary

    这个短文集在本子剧情的大道上狂奔。

    Language:
    中文
    Words:
    1,937
    Chapters:
    6/?
    Kudos:
    240
    Bookmarks:
    1
    Hits:
    1155
  11. Tags
    Summary

    Sans tries to go back in time to before his brother is killed. He ends up in the Underfell universe and bites off a lot more than he can chew. Can Underfell Papyrus help him back home or will he be stuck in this awful world forever?

    Notes:
    Noncon/dubcon warnings do not apply to any fontcest relationship.
    If you wish to skip the rape scene in this fic, you can skip chapter 3. However, the rest of the fic heavily references this chapter as this is a rape recovery longfic.
    Please read the warnings in the notes section of each chapter.

    Language:
    English
    Words:
    103,656
    Chapters:
    20/?
    Collections:
    2
    Comments:
    388
    Kudos:
    572
    Bookmarks:
    82
    Hits:
    9024
  12. Tags
    Summary

    Everything about her bewitched him, and tonight, there would be no interruptions.

    Inspired by dirtytoxin's art.

    Language:
    English
    Words:
    4,332
    Chapters:
    1/1
    Comments:
    1
    Kudos:
    6
    Bookmarks:
    1
    Hits:
    122
  13. Tags
    Summary

    The barrier had been destroyed, monsters set free from their century-long prison. They had freedom at long last, and yet Monsterkind was slow to accept this truth. The idea of freedom after so long was almost surreal- But there were still the few monsters that wanted to go, to see just what their beautiful world came to become. After a long discussion between the great king, accompanied by his great advisor, and the officials of the cities closest to the great mountain that hid the monsters away, Monsterkind was given the opportunity to grow under the warm sun, within the safety of foster homes.
    But that is not all. Along with dealing with the reintegration of monsters into society, and fighting for them to get basic human rights, the barrier dropping released concentrated magic back into the world. For those humans who descended from monsters, it poses an interesting problem when long dormant magical genes and cells are reactivated violently. Humans and monsters really aren't all that different- but not everyone can see that.

    Book 1: Chapters 1-75.

    Book 2: 76-???

    Language:
    English
    Words:
    1,026,068
    Chapters:
    134/?
    Comments:
    1141
    Kudos:
    490
    Bookmarks:
    62
    Hits:
    17871
  14. Tags
    Summary

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

    Language:
    English
    Words:
    22,657
    Chapters:
    9/39
    Comments:
    4
    Kudos:
    17
    Bookmarks:
    1
    Hits:
    373
  15. Tags
    Summary

    Lazy days were always the same. Movies on the couch, and cuddling with your boyfriend.

    And sometimes, if you were lucky, things would escalate.

    Language:
    English
    Words:
    2,315
    Chapters:
    1/1
    Comments:
    19
    Kudos:
    69
    Bookmarks:
    3
    Hits:
    944
  16. Tags
    Summary

    Drabble Requests from my tumblr events and shorter fics!
    I will add Pairings/warnings at the start of each part to try make them easier to find <3

    Language:
    English
    Words:
    49,439
    Chapters:
    47/?
    Comments:
    147
    Kudos:
    378
    Bookmarks:
    22
    Hits:
    5901
  17. Tags
    Summary

    Two sisters. One promise. In a world of death and gore, these girls will have to use the power of words and actions. One wrong move could end up in their permanent death. They soon come across the skeleton brothers, who take them in for a price- one that they have no choice in.

    Series
    Language:
    English
    Words:
    2,408
    Chapters:
    1/?
    Kudos:
    3
    Bookmarks:
    1
    Hits:
    66
  18. Tags
    Summary

    A series of one-shots involving the classic UT!Bros.

    Smut chapters marked as *
    Commissions, gifts, and requests go here.

    Series
    Language:
    English
    Words:
    20,880
    Chapters:
    11/?
    Comments:
    145
    Kudos:
    418
    Bookmarks:
    53
    Hits:
    5602
  19. Tags
    Summary

    It would have been easier for Edge to bear if there had been someone to blame.

     

    There were any number of reasons that Edge and Red were currently stuck in Underswap. Fate, bad timing, the maliciousness of the universe...shitty luck. All of them and none of them were reason enough and really, it wouldn't have been so bad if Edge could stand his counterpart, Stretch.

    Language:
    English
    Words:
    34,794
    Chapters:
    10/11
    Comments:
    129
    Kudos:
    168
    Bookmarks:
    24
    Hits:
    1884
  20. Tags
    Summary

    hmm......crucnch

    Language:
    English
    Words:
    923
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    5
    Bookmarks:
    1
    Hits:
    730

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