Cosmic_Surgeon
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Recent works
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Summary
Field Report: Equus Ferus (or the Wild Horse)
Before the boar, 2B hadn't counted anything. Now she counts everything: forty-three days, two hundred and seventeen simulations, six hundred and twelve queries, one irreversible modification. The dimensions of what she needs inside her. The temperature of what she's touched and tried. The hours spent testing and finding it insufficient.
All of it leading here. 9S and the war has faded to background noise. The horses are waiting in the meadow. Yet, the wanting doesn't stop: not after the horses, not after anything. It just finds new things to want, new ways to want them and new things 2B is willing to become to get them.
Series
- Part 2 of YoRHa Field Research Series
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Not an Extra by Cosmic_Surgeon for XenoWarrior
Fandoms: ウマ娘 | Uma Musume - All Media Types, ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime)
06 Jul 2026
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Summary
She's always been the extra. The one who helps, cleans up and stays late. You've watched her linger at your door, eyes dropping to your mouth, wanting something she can't name.
Tonight, you name it for her. You bend her over your desk and show her she's the main event.
Series
- Part 6 of Various Prompts
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Through Glass by Cosmic_Surgeon for Something_or_Something
Fandoms: Zenless Zone Zero (Video Game)
01 Jul 2026
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Summary
Jane and Yixuan have been circling each other for weeks. Belle just happened to be in the middle.
Some nights are about what happens; others are about what you finally let happen.
Series
- Part 5 of Various Prompts
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Dialyn hears the dead. Every dying thought and final scream; they echo in her skull, growing louder in the silence after violence. Tonight, she needs something louder than grief.
She asks Banyue to take her apart and make her feel something real. He was built to kill, has spent ten years learning not to, but for her, he'll risk the control he's fought so hard to maintain. What neither expects is the devastating tenderness underneath: the way he holds her together even as he takes her apart.
Two people who carry the weight of the dead. One night they choose to carry it together.
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Summary
Eighteen times she has taken what wasn't offered. Eighteen times she has said 'I love you' and 'I'm sorry' like they were the same word. Eighteen times she has wiped away the evidence and told herself there was nothing left.
But there is always something left. Not just on the skin: on her. Warmth she cannot generate alone, closeness she was never offered, a piece of Sandrone she carries until she can steal it again.
Columbina cannot stop. She knows what she is and she hates herself for it. But stopping would mean giving up the only part of Sandrone she can have and she needs her too much to let go.
Eighteen will become nineteen.
Recent series
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Various Prompts by Cosmic_Surgeon
Fandom Zenless Zone Zero (Video Game), ウマ娘 | Uma Musume - All Media Types, ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game), 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
06 Jul 2026
Summary
A collection of standalone works, each inspired by a prompt from someone else
- Words:
- 31,541
- Works:
- 6
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(Dick) Girl-Failure Society by Cosmic_Surgeon, Resilient_Soul
Fandom Zenless Zone Zero (Video Game), 原神 | Genshin Impact (Video Game)
23 May 2026
Summary
Where tiny-cocked femcels with no self-control cum too fast and feel too much. The Dick Girl Failure Society: because some girls are just built to be pathetic and ruined.
- Words:
- 24,429
- Works:
- 5
- Bookmarks:
- 1
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Summary
Zhu Yuan joined the force to protect the public, but all she really offers is a useless cock and a body made to be used. In this collection, she’s forced to serve in the most degrading ways, humiliated by both the civilians, criminals, and people she once swore to protect.
Her badge is a joke, her authority a lie, and her tiny, twitching cock betrays her every time. The city doesn’t need her strength: only her mouth, her ass, and the pathetic little thing between her legs.
Each piece is standalone unless otherwise noted.
- Words:
- 40,644
- Works:
- 5
- Bookmarks:
- 5
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Summary
"Assessment of organic reproductive response." That's what she called it.
In the Bunker's archives, they're filed alongside legitimate reconnaissance reports: sector sweeps, machine activity assessments and threat analyses. No one reads them or questions why a combat android keeps requesting patrols in sectors with no strategic value.
But 2B keeps submitting them. Field report after field report. Each one more depraved than the last and documenting another step in her transformation from combat unit to something YoRHa never designed her to be.
- Words:
- 14,014
- Works:
- 2
- Bookmarks:
- 2
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Summary
Astra brats; Evelyn punishes.
Whether it’s playful teasing or sharp humiliation, these stand-alone works follow a spoiled girl who never learns and a Mommy who delights in reminding her just how little power she has.
- Words:
- 49,652
- Works:
- 4
- Bookmarks:
- 13
Recent bookmarks
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unorthodox reconciliation by freakmeister (sobmeister)
Fandoms: 原神 | Genshin Impact (Video Game)
24 Dec 2025
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Summary
Nefer notices it almost immediately.
She is, after all, a very meticulous person. She doesn't think anyone else has managed to pick up the intricate details of Lauma's shift in behaviour, or the meaning behind any of it, but it's clear as day under Nefer's magnifying glass.—
Lauma is in rut and she only seems to want Nefer, even years after their break-up
Series
- Part 1 of oh deer
Bookmarked by Cosmic_Surgeon
07 Jul 2026
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Summary
Click for a sneak peek!
For a moment, Zhu Yuan was just… lost. Lost in sensory overload, in the tang of Belle’s mouth, the heat of so many hands, the knowledge that she was sandwiched between two siblings who wanted her, who didn’t even seem to care about the rules she lived by.
Then Wise moved behind her, pressing up so close his chest molded to her back, the shape of his cock pushing at the seam of her pants. He didn’t waste time reclaiming his territory, either: his hands swept around her waist and grabbed at her hips with rough hunger, squeezing, pulling her back against him so hard she could feel every twitch of his arousal through the layers.
“See?” Belle murmured, breaking the kiss only long enough to draw a ragged breath. Her lips were slick, pupils blown wide with excitement. “We really do share everything. Especially when it’s worth sharing… that’s what siblings do, right?”
Zhu Yuan can't decide if she wants Wise, or Belle.
Fortunately, it turns out that the Phaethon siblings really do share everything...Series
- Part 79 of FOR OTHERS
Bookmarked by Cosmic_Surgeon
05 Jul 2026
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Summary
"But—" Sandrone stood up. "What the hell did you do?"
"Oh," Columbina's slightly mischievous grin returned to her face. "I was only giving you what you had asked for."
"Excuse me?"
"Did you not say you wanted milk?"
Columbina does a bad job running her errands and makes up for it in a strange way.
Bookmarked by Cosmic_Surgeon
03 Jul 2026
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Summary
An idea popped into Sandrone's mind—a bold one, for certain, but one that almost guaranteed Columbina wouldn't be able to hold up her end of their makeshift agreement. If she was lucky, it might even get the woman to leave her alone entirely. She reached for a spare piece of the nice paper she kept on hand for official use, and began writing out the exact procedures her little "experiment" would entail.
Sandrone proposes a deliberately outrageous experiment in order to get Columbina to stay as far away from her as possible. She does not succeed.
Bookmarked by Cosmic_Surgeon
03 Jul 2026
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Summary
Amber and Collei are now a married couple, but not a traditional one. Their wedding rituals were quite unique and magical, leaving them with a new lifestyle that now they’ll share together: That of constantly and perpetually having anal sex together.
Let's find out how they manage...
Bookmarked by Cosmic_Surgeon
03 Jul 2026