1 - 20 of 39 Works in Top Koby (One Piece)
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Ignite the Forbidden Flame by Imcecilingit
Fandoms: One Piece (Anime & Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime & Manga)
03 Aug 2026
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Summary
He had lost. Truly lost. Everything and Everyone. First he lost his Friends. Then when he thought he could save his Brother. His Brother died. Because of him. It was all his fault. He should have died but instead his Brother had but at what cost. To let a piece of filth like him live in this world carefree. He was truly broken but something was about to happen that would change him forever. Or perhaps he is going to change Everyone around him unintentionally.
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Monkey d luffy is unintentionally pulling everyone close while being oblivious, studid and confused himself.
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One Piece: When Two Different Worlds Collide by MarinoMarceline
Fandoms: One Piece (Anime & Manga), One Piece
01 Aug 2026
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Summary
Monkey D. Luffy never expected the person who understood him best to wear a Marine coat. Koby never imagined that the pirate he admired most would become the man he fell in love with. Their relationship is a delicate secret, built on stolen moments: hidden meetings in momentary places, whispered conversations over untraceable Den Den Mushi lines, and promises made beneath the stars before they each sail away toward opposite horizons. Every reunion is a gift, and neither one of them knows when they'll meet again.
But the world conspires to keep them apart.
As captain of the Straw Hat Pirates, Luffy relentlessly chases the legendary One Piece, living as the freest man on the seas. Meanwhile, Koby climbs the ranks within the Marines, driven to protect the innocent and reform the organization from within. Their dreams never clash, yet the flags they sail under make their love forbidden.
To the Marines, Luffy is a dangerous threat; to pirates, Koby is a symbol of justice. Each encounter carries the frightening possibility that they might become enemies, standing on opposite sides and surrounded by those they care about.
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Summary
As a small, soft-spoken, and relatively inexperienced Alpha, it would be fine if Koby’s Omega were ONLY massive—but the fact that his mate lives, literally, with a prehistoric predator sharing his skin... Well, in tending to the other’s heat, Koby may have bitten off more than he can chew.
Written for the "Something in the Air" 2026 Sex Pollen Fest Zine
Series
- Part 18 of Toucan's Zine Pieces
- Language:
- English
- Words:
- 3,735
- Chapters:
- 1/1
- Kudos:
- 3
- Hits:
- 488
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Ignite the Forbidden Flame by Imcecilingit
Fandoms: One Piece (Anime & Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime & Manga)
21 Jun 2026
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Summary
He had lost. Truly lost. Everything and Everyone. First he lost his Friends. Then when he thought he could save his Brother. His Brother died. Because of him. It was all his fault. He should have died but instead his Brother had but at what cost. To let a piece of filth like him live in this world carefree. He was truly broken but something was about to happen that would change him forever. Or perhaps he is going to change Everyone around him unintentionally.
OR
Monkey d luffy is unintentionally pulling everyone close while being oblivious, studid and confused himself.
- Language:
- English
- Words:
- 606
- Chapters:
- 1/1
- Kudos:
- 5
- Hits:
- 254
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Summary
In east blue Admiral Koby is ordered to caugh the king of the pirates, he will manage to cuff him, but they'll never made it to the fort
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Koby NSFW Alphabet <3 by sanpakura
Fandoms: One Piece (Anime & Manga), One Piece (Live Action TV 2023), One Piece - All Media Types
03 Jun 2026
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Summary
Since there's so many NSFW alphabet works on every single character BUT my sweet little Koby I will take one for the team and write it for you! Mind you these are my headcannons and personal tastes. Might be slightly ooc but idk, I'm not too versed in the Koby world yet but hes absolutely one of my faves.
PLEASE KEEP IN MIND THAT I JUST GOT INTO ONE PIECE AND THIS IS MORE ABOUT LIVE ACTION KOBY.
This is sooooo not well written and I might have missed a few things, but enjoy!<3
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The Boss’s son’s boytoy by heisoar
Fandoms: One Piece (Anime & Manga), One Piece (Live Action TV 2023)
26 Mar 2026
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Summary
Koby works under Dragon. Dragon has a son, Monkey D. Luffy.
Luffy likes bullying Koby, but that’s because he’s just really into the man.
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Luffy and Koby spend time at the Sunny, but in this timeline Koby is a fishman and Luffy gets quite curious on what’s in Koby’s pants.
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Akainu can see the potential in Koby, he just needs the proper guidance.
Or, Koby, under Akainus' influence, comes to the conclusion that Luffy is not only a threat to the public but onto himself. And Akainu is so kind to look past Luffys crimes, all Koby needs to do is make sure Luffy stays in line.
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Summary
Koby likes it when Luffy touches him and grinds against him.
—Maybe he likes it too much- but, needless to say, Koby and Luffy just have a complicated sexual relationship
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Uno Reverse by WhoopsyDaisies for DragonofSecretStories
Fandoms: One Piece (Anime & Manga)
15 Feb 2026
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Summary
Alpha Kidd has enjoyed his arrangement with omegas Law and Luffy to spend heats and ruts together. Finding out that there's another alpha in the mix, however, makes him doubt his place with the mated pair.
I have several chapters already written so I should update fairly regularly? We'll see, the fall is always busy.
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It was the first week of spring, and the Luffy, a cat-hybrid had forgotten that it was that season again for dog-hybrids like Koby.
Kinktober 7 , 2025 - Free Use/ Somnophilia
Series
- Part 5 of 2025 Kobylu Kinktober
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Summary
Koby doesn’t want to be a pirate, so he begs Luffy to eradicate or even lower his bounty.
But Luffy doesn’t want to be a marine, yet he isn’t complaining like a baby. But maybe if Koby can do something for him, then he can find a way to lower his bounty.
Kinktober 5, 2025 — Degradation
Series
- Part 4 of 2025 Kobylu Kinktober
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Summary
Koby stroked his hair and make soft comforting noises as the alpha below him wept, and he felt awful guilt as he thrust into him—but he could not deny a part of him reveled in the fact that Luffy, the man he had chased halfway across the Grand Line, one of the Four Emperors of the Sea, was in his arms, soft and panting and clenching on Koby's knot.
Luffy's execution is postponed on the condition that he is bitched by a Marine. To save him, Koby volunteers for the task.
Kinktober day 14: Omegaverse – Possessive Sex
Series
- Part 14 of OP Feral Kinktober 2025
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Dragon commands Koby to discipline the prince, Luffy.
Unbeknownst to him, Luffy and Koby have recently had an affair going on behind the palace’ backs.
Kinktober 3, 2025 — Voice Kink/Verbal Control
Series
- Part 3 of 2025 Kobylu Kinktober
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Koby is a pirate, Luffy is a marine.
They hate eachother but cant help but fuck around with eachother.
In one meeting, Koby’s had enough and decides to teach that brat a lesson.
Kinktober 2, 2025 — Brat/Brat taming
Series
- Part 2 of 2025 Kobylu Kinktober
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Koby isn’t really into bondage, but Luffy wants to try it out! So Luffy asks Koby to fuck him while he’s tied up and cuffed.
Kinktober 1, 2025 — Bondage
Series
- Part 1 of 2025 Kobylu Kinktober
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Koby is a Beta and Luffy is an Omega. It's not the traditional pairing but it's enough for the both of them
Kinktober 12, 2025 - Omegaverse/BreedingSeries
- Part 6 of 2025 Kobylu Kinktober
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After Enies Lobby, Koby boards as a spy on the Sunny, it was easy to be accepted by Luffy and the crew. It's a bit overwlming, but nothing he couldn't handle, right? So how did he ended up nacked on the counter?
Fist chapter has no sex scene, seconds has a lot of sex scene, hope you like
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Summary
All day long, Koby had been losing his mind.
It wasn’t just the way Luffy stretched out in the sun, letting his shirt ride up enough to show the bandages across his chest and the tempting slope of his waist. It wasn’t just the way his shorts kept slipping lower on his hips whenever he leaned forward, or how his lips would shine wet when he licked juice from his fingers after stealing fruit from the galley. It was the way he kept glancing at Koby quick, knowing looks that carried a promise no one else could read.
And every single time, Luffy would tilt his head, grin like a bastard, and then turn back to whatever he was doing. Like he knew exactly how tight Koby’s cock was straining in his pants.