1 - 20 of 221 Works in Nonbinary Sigma (Bungou Stray Dogs)

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  1. Tags
    Summary

    Sigma gets a nice farewell before going to run the casino

    Or

    Sigma gets fucked by Nikolai, Fyodor watches

    (Kinktober 2025 day 4 - Voyeurism)

    Language:
    English
    Words:
    853
    Chapters:
    1/1
    Kudos:
    13
    Hits:
    225
  2. Tags
    Summary

    In a cold, sterile facility designed for containing the extraordinary and the dangerous, selected individuals with unique abilities—or curses—are kept under constant observation. One of them is Fyodor, who has the ability to infect people's minds with parasites. In ways they cannot fully comprehend, scientists like Nikolai, a man on the verge of losing control, and Sigma, a determined but unraveling person, are drawn into his presence. (A recycle of my SCP AU for OCs lol)

    Language:
    English
    Words:
    47,929
    Chapters:
    30/30
    Comments:
    52
    Kudos:
    793
    Bookmarks:
    67
    Hits:
    16,010
  3. Tags
    Summary

    thebestofthebest: im genuinely about to get myself shot in the head

    girlypop: okay abraham lincoln?? i didnt know you survived the first shooting

    sugardaddy: LUCY

    OR

    bsd highschool au put into one groupchat. tags look like a lot, but please read ;3 new chapters every friday

    Language:
    English
    Words:
    3,094
    Chapters:
    4/?
    Comments:
    32
    Kudos:
    113
    Bookmarks:
    8
    Hits:
    1,242
  4. Tags
    Summary

    As a tactical technology company, the DOA Corp is quite possibly one of the most successful businesses in the country. Only the top people in their fields can even dream of walking into its headquarters. The firm was only founded a mere decade and a half ago, though it's very well known in the world of business.

    About a week ago, the DOA Corp found themselves a brand new intern. Sigma, a bright young man with excellent memory skills, managed to acquire an internship on one of the upper levels of the building. He would be doing tasks for people that are a few layers beneath the CEO himself.

    or, a DOA Business AU for an excuse to write office smut ;p

    Language:
    English
    Words:
    6,653
    Chapters:
    2/?
    Comments:
    9
    Kudos:
    45
    Bookmarks:
    2
    Hits:
    480
  5. Tags
    Summary

    “I wouldn’t trash talk you behind your back, that I can tell you.” Sigma managed to say, not faltering despite having Nikolai’s full attention on him by virtue of a miracle, probably.

    “No?” His innocent look only increased. Damn, he was good. “Not even on my first day here, where I gave you that super-duper complicated order?”

    There, they couldn’t help but burst into laughter.

    siglai au where sigma's a barista, nikolai's a magician at a nearby theather, and they quickly pique each other's interest.

    Language:
    English
    Words:
    1,662
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    14
    Bookmarks:
    1
    Hits:
    81
  6. Tags
    Summary

    Sigma has taken care of many littles in their 3 years of living, only at the expense of their own age regression. Yosano and Kouyou realize what they do for others and manage to get them to regress.

    Language:
    English
    Words:
    1,975
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    36
    Bookmarks:
    3
    Hits:
    308
  7. Tags
    Summary

    “Ah, don’t worry! One of your friends tried to bite me and partly succeeded, that’s all.” That made them laugh a little; it wasn’t uncommon for fighting, given how most preferred their own sharp teeth over any weapon. “What? You might have too?”

    “Maybe.” They simply replied, and the word sounded more amused than menacing, something Sigma couldn’t say had been accidental.

    for bsd rarepair fest 2025's day 1: illness/injury + confession + “do you trust me?”

    mermaid/pirate siglai au, and their first meeting.

    (this is part of a series but can be read indepedently.)

    Series
    Language:
    English
    Words:
    3,862
    Chapters:
    1/1
    Collections:
    1
    Comments:
    4
    Kudos:
    12
    Bookmarks:
    2
    Hits:
    87
  8. Tags
    Summary

    Sigma's brain slowly starts feeling fuzzy, their last coherent thought being "I was drugged" before they black out.

    AKA Sigma gets kidnapped, Fyodor and Nikolai freak TF out.

    (This is Sigma's POV for most of it btw)

    Language:
    English
    Words:
    2,505
    Chapters:
    7/7
    Comments:
    4
    Kudos:
    31
    Bookmarks:
    1
    Hits:
    447
  9. Tags
    Summary

    Sigma, after the fall of the Decay of Angels and the loss of their home above the clouds, joins the ADA. It is not the miraculous fix-all they hoped for. They are still sick and they are still scared. They do not improve.

    Featuring a dying horse that haunts Sigma when their eyes are closed and when they aren't, lab results they aren't sure they should have ordered, a forced week of paid leave, dead dreams and someone who should have died on impact.

    Language:
    English
    Words:
    1,891
    Chapters:
    1/1
    Comments:
    10
    Kudos:
    21
    Bookmarks:
    6
    Hits:
    95
  10. Tags
    Summary

    "Movie night in my house," Dazai said.
    "Just between friends,"
    Nikolai smiled.
    By the end of the night, Chuuya was on his knees, Sigma in tears, and no one remembered the movie anymore.

    Language:
    English
    Words:
    5,325
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    84
    Bookmarks:
    12
    Hits:
    1,879
  11. Tags
    Summary

    Sigma said, “That’s the worst sentence you’ve ever spoken to me. A new record. A truly astounding accomplishment after— what, no, I absolutely do not need to be teleported right now, this is the absolute worst time for me to—”

    “Disappear!” he cackled, diving across the table.

    It was a beautiful day in Sigma’s favorite office, and Gogol was a horrible nuisance.

    Or: Gogol takes Sigma on a tour of his Overcoat pocket. Antics ensue.

    Language:
    English
    Words:
    7,779
    Chapters:
    1/1
    Kudos:
    6
    Hits:
    50
  12. Tags
    Summary

    “Good evening, everyone!!!” While it had taken quite a bit to ease Sigma’s nervousness and they were still a bit tense even at the start of the show, Nikolai was speaking to the audience like he had been born for it. “I’m Nikolai, and here’s my wonderful assistant, Sigma!!!”

    for bsd rarepair exchange 2025

    au where sigma gets a job as nikolai the magician's assistant… and feelings for said magician.

    Language:
    English
    Words:
    4,529
    Chapters:
    1/1
    Collections:
    1
    Kudos:
    14
    Bookmarks:
    1
    Hits:
    77
  13. Tags
    Summary

    Nikolai shows Sigma a card trick :D

    Language:
    English
    Words:
    723
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    23
    Bookmarks:
    1
    Hits:
    131
  14. Tags
    Summary

    ADDITIONAL TAGS WILL BE ADDED AS STORY PROGRESSES (will be continued, updates every two weeks) WILL ADD NEW TAGS IN NOTES.

    -

    Fyodor and Sigma are friends (duh) but I wanted to write about how Nikolai and Fyodor met, blah, blah, blah. Have fun, or not, woohoo. Currently working on another Fyolai fic lol.

    -

    CURRENTLY ON HIATUS UNTIL FURTHER NOTICE!! {24.10.06-_._._}

    Language:
    English
    Words:
    15,852
    Chapters:
    9/?
    Comments:
    2
    Kudos:
    30
    Bookmarks:
    3
    Hits:
    836
  15. Tags
    Summary

    Dazai smacks Gojos plump fat ass, his brown eyes locking in with Gojo's piercing blue ones. Dazai felt the pluptious meat jiggle in this hand as he stared at the conventionally attractive man and smirked with a shit eating grin. "Lemme eat that FAT ASS." He exclaimed. Gojo's cheeks turned a bright red as he stared at the homeless hobo of a man. Dazai, probability being a fucking succubus or something seduces Gojo with ease.

    Yosano stares at a distance while taking a sip of her wine, enjoying her time at the bar. Her eyes widen as she spots the two home of the sexual mingling with eachother.

    She almost choked on her wine.
    "That whore vru..." She placed her wine down and picked up her phone.

    Language:
    English
    Words:
    791
    Chapters:
    2/?
    Comments:
    26
    Kudos:
    50
    Bookmarks:
    3
    Hits:
    408
  16. Tags
    Summary

    Sigma, the first ai robot to run a casino by itself. As a robot who’s been interacting with humans everyday, it began to question its humanity, accidentally becoming sentient in the process.

    After sneaking out of his apartment, going to truly put an end to himself, dazai encounters a stranger walking along the side of the road, looking oblivious to their surroundings, he decides to hi.

    UNFINISHED!!

    Language:
    English
    Words:
    1,245
    Chapters:
    2/2
    Kudos:
    3
    Hits:
    44
  17. Tags
    Summary

    INCEL GAMER STENCHMAXING JELQING LOOKSMAXING BETA MALE HACKER SCAMMER COMMUNIST BASEMENT DWELLER ORPHAN FYODOR X CAPITALIST CRYPTO BRO , ANTI WOKE MIND VIRUS CONSPIRACY THEORIST NIKOLAI + ELON MUSK GF ALIEN BRITISH POLISH TRANSMASC ROBOT SIGMA
    ANDREW TATE PODCASTER ALPHA MALE DAZAI
    TRISTAN TATE PODCASTER RANPO
    FRESH AND FIT AS TETCHOU AND JOUNO
    FITZGERALD DONALD TRUMP
    MORE IDK
    I wanted to wait until april 1st but what if someone steals these terrible ideas
    Theres no update this is only for the date thing cuz idk i like dates
    This is a prequel to my other fanfic that isnt finished yet its gonna make sense i swear

    Series
    Language:
    English
    Words:
    3,741
    Chapters:
    2/?
    Comments:
    8
    Kudos:
    11
    Bookmarks:
    1
    Hits:
    192
  18. Tags
    Summary

    Sigma kept holding their breath, a few moments had now passed...how strange. Shouldn't they...took a deep breath. They had shocked look on their face. Able to breathe under water... did they die from the fall and now were they in the afterlife, how strange. It was quite calm and felt peaceful... Was this it though, falling endless done this body of water... it's been so long, well at least that's what sigma thought, it felt like hours or was it minutes, it was confusing.

    Language:
    English
    Words:
    3,374
    Chapters:
    3/?
    Kudos:
    2
    Hits:
    115
  19. Tags
    Summary

    A silly little text fic thingy about bungou stray dogs characters in school

    Language:
    English
    Words:
    2,426
    Chapters:
    11/?
    Comments:
    53
    Kudos:
    223
    Bookmarks:
    12
    Hits:
    4,374
  20. Tags
    Summary

    A short fic about Sigma having a mental breakdown because happiness shouldn't exist for anyone!

    Sigma's pronouns change throughout the chapter as they contemplate their humanity

    I'm so bad at descriptions but hopefully this is good enough (I wrote this at 1am bare with me chat)

    100% fluffy hair 😈😈
    Sigma sigma sigma boy sigma boy sigma boy 🤑🤑🤩🤩

    Language:
    English
    Words:
    2,149
    Chapters:
    1/?
    Comments:
    6
    Kudos:
    21
    Bookmarks:
    1
    Hits:
    178

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