1 - 20 of 173 Works in Alphys/Undyne-centric (Undertale)

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  1. Tags
    Summary

    Alphys has had a membership to the gym for six months, but hasn't even gone once. But when Undyne convinces her to go, can she stop herself from comparing herself to her girlfriend? Can she ever feel like she doesn't come up short, when Undyne's so strong, and she's so... not?

    Series
    Language:
    English
    Words:
    2,415
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    15
    Bookmarks:
    1
    Hits:
    72
  2. Tags
    Summary

    When Undyne and Alphys bump into each other one day, their lives change, a lot.

    Language:
    English
    Words:
    102,407
    Chapters:
    39/41
    Comments:
    310
    Kudos:
    151
    Bookmarks:
    10
    Hits:
    2719
  3. Tags
    Summary

    There was one lie Alphys would always be telling.

    "I'm fine."

    But sometimes...

    Language:
    English
    Words:
    8,517
    Chapters:
    12/?
    Comments:
    29
    Kudos:
    31
    Bookmarks:
    1
    Hits:
    364
  4. Tags
    Summary

    Dr Alphys, under the pressures of all her failures, finds herself slowly slipping away and losing the will to continue.

    By some twisted miracle, she lives, unsure as to how it was even remotely possible. Clearly someone rescued her, but who?

    And Papyrus won't stop going on about his new friend.

    Alphys, with all her scientific and dating sim knowledge, considered herself well-prepared. But no amount of science and shoujo anime could've prepared her for someone like Undyne.

    (mermaid!undyne au)

    Series
    Language:
    English
    Words:
    58,997
    Chapters:
    6/?
    Comments:
    53
    Kudos:
    52
    Bookmarks:
    9
    Hits:
    602
  5. Tags
    Summary

    A crossover of The Shape of Water (mostly the book version, though; trust me) and Undertale, in which we have a silent janitor enslaved to a routine of necessity, within the only company that would hire her - Deltarune (Occam) - Industries.

    After fifteen years of anonymity, Alphys suddenly finds herself thrust into a situation that would change her world forever - and enslave her heart to someone else, whose eyes met hers the moment she walks into a prison, seeing her...

    Yes, I absolutely going there, and I do not fucking care if it's been done before.

    I will be drawing mostly from the novel novelisation, as it is incredible, so much better than the movie - and I fucking love that movie. This is an alternate universe, in which the humans and monsters still share the surface - but with tensions that are clearly smilies of the Cold/Space War of the 50s and 60s of our world, especially when the monsters are segregated to the Underground...

    And yes, pancakes: this is NOT a parody. I am absolutely taking this seriously. I love both of these stories. They belong together.

    Enjoy!

    Language:
    English
    Words:
    77,892
    Chapters:
    29/?
    Comments:
    130
    Kudos:
    31
    Bookmarks:
    5
    Hits:
    532
  6. Tags
    Summary

    Alphys promised herself one thing: "Don't fall in love again."

    That promise gets harder and harder to keep.

    Language:
    English
    Words:
    4,068
    Chapters:
    4/?
    Comments:
    19
    Kudos:
    23
    Bookmarks:
    4
    Hits:
    197
  7. Tags
    Summary

    Alphys makes a mistake.

    And it's one that, this time, the human isn't coming back from.

    Language:
    English
    Words:
    8,809
    Chapters:
    1/3
    Comments:
    11
    Kudos:
    16
    Bookmarks:
    4
    Hits:
    173
  8. Tags
    Summary

    Undyne's come home after a spending a long time away. What better way to celebrate that than buying a ton of cookies from the ever roaming monster scouts?

    Language:
    English
    Words:
    4,763
    Chapters:
    2/2
    Comments:
    5
    Kudos:
    15
    Bookmarks:
    1
    Hits:
    116
  9. Tags
    Summary

    Even after camping out in line, Alphys missed getting her claws on the special winter edition signed physical copy of Mew Mew Kissy Cutie’s Winter OVA. There’s only thing for ex-warrior Undyne to do...get her hands on a copy at all costs! Post-Undertale. Undertale Secret Santa for pixel-peridot!

    Language:
    English
    Words:
    2,406
    Chapters:
    1/1
    Comments:
    4
    Kudos:
    20
    Bookmarks:
    4
    Hits:
    112
  10. Tags
    Summary

    After almost a year on the surface, the truth about Alphys's research is leaked online, and she is dismayed by the reactions that everyone - especially the humans - that this brings.

    Not long after, a series of strange "accidents" start happening to Alphys, and by the time they catch on to what is happening and why, it's too late.

    This is a birthday present for AngleJoyce. I hope you like it!

    Series
    Language:
    English
    Words:
    60,226
    Chapters:
    35/?
    Comments:
    177
    Kudos:
    44
    Bookmarks:
    7
    Hits:
    1010
  11. Tags
    Language:
    English
    Words:
    2,658
    Chapters:
    1/1
    Comments:
    4
    Kudos:
    16
    Bookmarks:
    1
    Hits:
    148
  12. Tags
    Summary

    Now on the surface, and with increasing numbers daily, Alphys and Undyne now have to start looking towards their shared future with humans, one that they strive to make peaceful and happy. Along with the birth of their child, however, comes tensions, confusion, and fear. And as if that weren't enough, their child becomes more and more interesting as the years go by, offering them both a unique challenge along with the rest.

    Series
    Language:
    English
    Words:
    182,623
    Chapters:
    53/55
    Comments:
    262
    Kudos:
    119
    Bookmarks:
    10
    Hits:
    2792
  13. Tags
    Summary

    After Chara enters the Underground and kills those she loves, Alphys uses a last-ditch effort to save her people, one that she promised she would never use again…November's Patreon poll results.

    Language:
    English
    Words:
    2,874
    Chapters:
    1/1
    Comments:
    10
    Kudos:
    20
    Bookmarks:
    4
    Hits:
    115
  14. Tags
    Summary

    The five times Alphys and Undyne didn't recognize each other and the one time they did.

    (Deltarune-centric)

    Language:
    English
    Words:
    11,715
    Chapters:
    3/6
    Comments:
    46
    Kudos:
    94
    Bookmarks:
    12
    Hits:
    844
  15. Tags
    Summary

    Undyne looked in the mirror, feeling a wave of uncharacteristic nervousness. Today she would be marrying Alphys, the love of her life, and though she was excited beyond belief, the butterflies wouldn't go away.

    To calm herself, she took a deep breath and smoothed down her silver wedding dress, admiring the way it flowed softly to her calves and hugged her curves without feeling confining, itchy, or overly frilly. Mettaton had done a great job when he had made this dress at Undyne's request. It was soft and comfortable, silky smooth against her body, fitting her like a second skin. She loved it. And she couldn't wait to surprise Alphys with it.

    Especially since Alphys had been the one to come up with the concept for the dress, in a fanfiction she had written before they got together, while they were still friends and both secretly pining for one another. A fanfiction that Undyne had found by a complete accident only eight months ago.

    .............

    An overdue gift fic for Omoni, who wanted to see an Alphyne wedding. This is an AU of her lovely fanfiction, Light Reading, where Undyne found Alphys' fanfiction before their wedding instead of after. I'm sorry this took so long to come out!

    Language:
    English
    Words:
    5,247
    Chapters:
    1/1
    Collections:
    1
    Comments:
    8
    Kudos:
    16
    Bookmarks:
    4
    Hits:
    157
  16. Tags
    Summary

    Alphys is Determined to keep the stray cat she has been feeding in the alley and goes on an all-night stakeout to capture it. Alphyne featuring the mysterious Mew Mew.

    Language:
    English
    Words:
    4,117
    Chapters:
    1/1
    Comments:
    4
    Kudos:
    61
    Bookmarks:
    3
    Hits:
    502
  17. Tags
    Summary

    After a day at the beach, Undyne and Alphys muse about how far they've come, and where they might go from here...

    Language:
    English
    Words:
    742
    Chapters:
    1/1
    Collections:
    1
    Comments:
    7
    Kudos:
    33
    Bookmarks:
    5
    Hits:
    198
  18. Tags
    Summary

    A story about a life-changing meeting between Alphys and Undyne, who go through a lot of ups and downs together.

    Language:
    English
    Words:
    5,902
    Chapters:
    6/?
    Comments:
    46
    Kudos:
    34
    Bookmarks:
    3
    Hits:
    285
  19. Tags
    Summary

    Sapphic September prompts! I promise these were all written in September, they're just going up in October because ~I don't have control of my life~

    Language:
    English
    Words:
    37,170
    Chapters:
    30/30
    Comments:
    11
    Kudos:
    31
    Bookmarks:
    4
    Hits:
    336
  20. Tags
    Summary

    Based on a request from my tumblr.

    Alphys indulges a bad idea after being invited to snuggle Undyne after a workout.

    Series
    Language:
    English
    Words:
    661
    Chapters:
    1/1
    Comments:
    1
    Kudos:
    10
    Bookmarks:
    1
    Hits:
    203

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