1 - 20 of 1643 Works in Ecto-Genitalia (Undertale)

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  1. Tags
    Summary

    Trapped apart in different universes with only a cellphone router to keep them connected, Sans has a gift for Papyrus.
    A neat new toy that he encourages Papyrus to play with.
    And who is Papyrus to say no?

    (Note: Underfell Sans and Underswap Papyrus are referred to as their canon names in this fic.)

    Language:
    English
    Words:
    6,062
    Chapters:
    1/1
    Comments:
    3
    Kudos:
    22
    Bookmarks:
    3
    Hits:
    114
  2. Tags
    Summary

    You make a mistake and Sans decides to completely obliterate you for it

    Language:
    English
    Words:
    2,040
    Chapters:
    1/1
    Comments:
    18
    Kudos:
    32
    Bookmarks:
    5
    Hits:
    554
  3. Tags
    Summary

    You ran away. You couldn't face your dark past, it was to much for you. You moved to Ebott City to start a new life. Swearing off friends and relationships all together. Or so you thought...Two skeleton brothers move in next to you. You can't help but be drawn into them. Will you let them in to help you with your haunting past? or will you run again when your past catches up to you?

    Language:
    English
    Words:
    76,383
    Chapters:
    42/?
    Comments:
    327
    Kudos:
    629
    Bookmarks:
    98
    Hits:
    9960
  4. Tags
    Summary

    You had dealt with many things in your life. Fae, Supes, the Paranormal. Should be normal and easy for you, right? Wrong. When tragedy struck the Monster part of the city, there wasn't much else that could be done other than relocation. Guess who got the honor of being a host to some skeleton monsters? It wasn't Karen down the road, that's for sure. What do you get when you try to mix a human trying to keep secrets, and a bunch of suspicious skeleton monsters with mixed feelings? Trouble.

    Language:
    English
    Words:
    7,950
    Chapters:
    6/?
    Comments:
    26
    Kudos:
    256
    Bookmarks:
    65
    Hits:
    2513
  5. Tags
    Summary

    You and sans wanted to try something new in the bedroom, with an enchantment that allows you to not breathe and sans's magic this will be a night not to forget.

    Language:
    English
    Words:
    1,084
    Chapters:
    1/1
    Kudos:
    5
    Hits:
    134
  6. Tags
    Summary

    Born of the void, a being not meant to exist outside its darkness. What will become of the worlds he touches...

    Language:
    English
    Words:
    36,296
    Chapters:
    7/?
    Comments:
    35
    Kudos:
    84
    Bookmarks:
    22
    Hits:
    1323
  7. Tags
    Summary

    They defeated Crown but payed an heavy price.
    Cherry and the Font family have to learn to live with it and recover from traumas.
    But some monsters don't agree with Cherry and Butcher's being a couple...

    Series
    Language:
    English
    Words:
    80,793
    Chapters:
    26/29
    Comments:
    6
    Kudos:
    10
    Bookmarks:
    2
    Hits:
    395
  8. Tags
    Summary

    The monsters are free...

    and the cost of living is expensive.

    Papyrus is tired of seeing his brother work himself to death to keep them afloat. He decided to put some work in as well. Things spiral when Sans finds out.

    Language:
    English
    Words:
    2,390
    Chapters:
    2/?
    Kudos:
    12
    Bookmarks:
    2
    Hits:
    164
  9. Tags
    Summary

    I do hope you enjoy this story, it has been something I have been mulling over for awhile. Please forgive any errors or typos, I kinda.. Write by the seat of my pants style, I just type till I run out of ideas.
    This work is heavily inspired by
    The Soldier And The Carnal Skeletons, by Writers_War_Z0ne
    And By
    Monstrum Sceletus by Vivalavidapasta.

    Language:
    English
    Words:
    56,461
    Chapters:
    35/?
    Comments:
    379
    Kudos:
    663
    Bookmarks:
    111
    Hits:
    12672
  10. Tags
    Summary

    Ink would do anything for his best friend. So when he finds out that her husband has been abusing her for years now, he isn't happy. Especially considering she just entered her third trimester.

    Ink would do anything for his best friend.

    Because he loved her.

    Language:
    English
    Words:
    1,339
    Chapters:
    1/2
    Comments:
    15
    Kudos:
    39
    Bookmarks:
    8
    Hits:
    237
  11. Tags
    Summary

    Domestic morning One shot inspired by the Story Bitty House by BlamefulSea

    Honey Bee is a lil bro bitty, 15 inches tall adopted to ease the loneliness of a young adult woman. They share a peaceful morning.

    EDIT: I keep adding more chapters! I cant stop! someone save me!!!!! XD

    Language:
    English
    Words:
    23,699
    Chapters:
    10/?
    Comments:
    18
    Kudos:
    62
    Bookmarks:
    9
    Hits:
    894
  12. Tags
    Summary

    Underswap's Gaster is not a Nice Monster. Not at all.

    Years of being alone have broken Blue, and only a fluke accident has him tumbling across the multiverse and landing smack dab in one of the ones you really don't want to be in if you're from a Tale 'Verse.

    Red knows the mask that Blue wears, so does Edge.

    Its the same mask they put on every day themselves.

    Language:
    English
    Words:
    62,269
    Chapters:
    33/?
    Comments:
    461
    Kudos:
    446
    Bookmarks:
    65
    Hits:
    4385
  13. Tags
    Summary

    People have always considered you an angel for all the good you do for others. Oh if only they knew just how true that statement was.

    You are literally a Guardian Angel assigned to protect the Ambassador of monsters, Frisk. It has been almost 4 years since monsters came from the Underground and 4 years since you have become friends with the rag-tag group we all know and love. You've watched Frisk grow and do great things for monsters but of course... Nothing is perfect.
    (It's totally Sans' fault)

    Language:
    English
    Words:
    5,837
    Chapters:
    5/?
    Comments:
    17
    Kudos:
    162
    Bookmarks:
    34
    Hits:
    1159
  14. Tags
    Summary

    Fox watches his brother be taken by a mysterious black figure, unable to save him in time he follows them into a rift. Instead of ending up in the same place as his brother and the mystery kidnapper, he wakes up in a familiar forest. Though something seems wrong here, he isnt in his AU Anymore. So where did he end up.. and where is his brother?

    Language:
    English
    Words:
    5,009
    Chapters:
    2/?
    Kudos:
    3
    Bookmarks:
    1
    Hits:
    146
  15. Tags
    Summary

    So many twitter inspired posts...Anyway here's Nightmare in his lil submarine getaway because he's in heat :)
    Dream is gonna bring help! Why food? IDK :D

    Language:
    English
    Words:
    6,195
    Chapters:
    4/?
    Comments:
    35
    Kudos:
    88
    Bookmarks:
    27
    Hits:
    1226
  16. 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 skeleton monsters with two of the shorter ones arguing about dinner plans.

     

    FuckThisShitImOut.GIF

    ...Nope, not really. Julia caught their attention and while she thinks this was just 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 MAGNICENT BLUEBERRY?!

    Or...

    The edgy prince who commands with an iron fist? THE MALEVOLENT BLACKBERRY?!

     

    Find out now on our new series...

    BERRY WARS!!!

    Language:
    English
    Words:
    41,017
    Chapters:
    12/?
    Comments:
    7
    Kudos:
    44
    Bookmarks:
    10
    Hits:
    395
  17. Tags
    Summary

    (Y/n) lost her job, which sucks. If only she hadn't lost her second job, and apartment, as well! Now all she's got is a camper full of her crap on the back of her truck, and nowhere to go. At least she found this campground, even if it is in the middle of nowhere, and looks like no one has been around it for a while, and a skeleton with a head wound tries to make her into a meal... Rough start to making new friends, but his brother is sweet enough!
    And then there's the other skeletons who inhabit the other cabins, who all look vaguely similar... Their explanation of "cousins" only goes so far, but there are more concerning things to worry about, like how almost every skeleton is trying to get into her pants, their heats, and where her clothes, particularly her socks, keep disappearing to?!

    Language:
    English
    Words:
    11,875
    Chapters:
    6/?
    Comments:
    80
    Kudos:
    206
    Bookmarks:
    54
    Hits:
    1856
  18. Tags
    Summary

    Monsters have made it to the surface and made a place for themselves. A place that's still dangerous for humans.
    Feeling ill and heading to her apartment at the edge of the Monsters' part of town, (Y/n) runs into a wall, helped there by Sans, who she'd run into first. When she wakes up, she's a human in the middle of the Monster territory, with no way out and a couple of edgy skeletons for hosts.
    Sans doesn't particularly want to hurt just anyone, but he has to keep his tough guy image up. What he wants, is to find out why this strange, beautiful human woman kissed him, especially after he'd thrown her against a brick wall, but she faints too quickly to ask. To keep her safe, he decides to take her home until she wakes up. ...and then maybe he decides she should stay there a little longer...

    Language:
    English
    Words:
    34,967
    Chapters:
    14/?
    Comments:
    109
    Kudos:
    249
    Bookmarks:
    46
    Hits:
    3467
  19. 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:
    176,583
    Chapters:
    67/?
    Comments:
    2083
    Kudos:
    1609
    Bookmarks:
    266
    Hits:
    33671
  20. Tags
    Summary

    (Y/n), a high ranking Platoon Commander in the Military, was on a mission with her squad when her plane was shot down by an enemy ship, leaving her stranded on an unknown island, with none of her comrades in sight.

    It would have been all fine an' dandy... if she wasn't surrounded by three Alpha Skeletons and one Omega Skeleton. All of which want to fuck or be fucked by her.

    So now here she is, having to assess her dominance as an “Alpha” to get by with her limbs still attached and her clothes still in one piece. Even if one of them looks like he came straight from Satan's asshole.

    Language:
    English
    Words:
    107,019
    Chapters:
    37/?
    Comments:
    1273
    Kudos:
    3363
    Bookmarks:
    430
    Hits:
    61030

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