1 - 20 of 328 Works in Flame Princess (Adventure Time)
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Finn the Human was living out his life in Ooo at his best, friends, family and even love in the romantic way aren't missing and he's managed to find more of his kind out there, many of whom begin to move to Ooo to meet him, including his dear birth mother...
But Finn isn't the one who'd live out this life from now on, rather the real original one is reclaiming what's his. And along the way he'll have to find out the price to pay for a hero's life as a conspiracy begins to arise in Ooo.
Series
- Part 1 of A Tale of Two Knights
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This is an idea I had about Simon petrikov in adventure time ever since Fionna and Cake that I REALLY wanted to express. So, I made this and leaving the possibility to make future chapters explaining this fusion or continuing it. This does take place after Fionna and Cake though. Hope you enjoy!
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They met in the fall.
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After a deadly virus that turns its hosts into man-eating monstrosities ravages the nation and wipes out half the population, Marceline’s world is turned upside down when she gets separated from her family and is thrust headfirst into a waking nightmare of violence and depravity.
On the verge of giving up, a chance encounter with a pair of brothers reminds her that there’s more to life than death.
(11/18/25: edits made to Ch.1)
(11/24/25: edits made to Ch. 2 and 3) -
Hora de aventura -Cosmos, la vida- by Cosmos_Custos
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
28 Nov 2025
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No poder entender las emociones o expresarse ya que no es algo por lo cual fuiste hecho. Está es la historia de Cosmos/Leo, uno de la trinidad el cual se le dio la tarea de aprender sobre los Escritos con la intención de mejorar su comprensión.
¿Qué será lo que le espera a Ooo con su llegada? -
Sugar We're going down by realprincegumball
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
27 Nov 2025
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I can't remember the last time I felt your touch, it's been a long time. I couldn't care less about the glorious kingdom that you used to claim as yours and the perfect life that you were so obsessed with but occasionally the thought of you still haunts me, you're affection used to be as sharper as a knife and the words you used against me will always be marked in me like an eternal burn. You never cared, did you? Don't you have the tiniest bit of shame? Seeing that you're living your life happier than ever and are loved by everyone after leaving me the way you did is agonizing.
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A-Z Female character alphabet by Mrprince2099
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Transformers: Prime, Doki Doki Literature Club! (Visual Novel), Young Justice (Cartoon), Invincible (Cartoon 2021), Invincible (Image Comics), Space Jam (Movies), Zootopia (Disney Movies), Who Framed Roger Rabbit (1988), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), The Last of Us (Video Games), Pocket Monsters | Pokemon - All Media Types, Halo (Video Games) & Related Fandoms, Avatar: The Last Airbender (Cartoon 2005), Avatar: Legend of Korra, The Boys (TV 2019), Cyberpunk 2077 (Video Game), Bullet Train (2022), Ben 10 Series, My Life as a Teenage Robot, ビースターズ | BEASTARS, Overwatch (Video Game), Marvel, Grounded (Video Game), Hollow Knight (Video Games), Cyberpunk: Edgerunners (Anime), The Big Bang Theory (TV), Baldur's Gate (Video Games), Dead by Daylight (Video Game), Stardew Valley (Video Game), KPop Demon Hunters (2025), Chainsaw Man (Anime), Kick-Ass (Comics), Kick-Ass (Movies), Adventure Time (Cartoon 2010), Stranger Things (TV 2016)
23 Nov 2025
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This is a simple female A to Z that I will using dozens of fandoms and fan suggestions to make sure good female character alphabet, I also will be doing femboys and maybe trans characters down the line. This work was inspired by Jrobbo117.
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Bonnibel, sweet shop owner and biology major, is struggling. Marceline, session musician, is also struggling.
Finn, as a friend of both (and to get Marceline off his couch), helpfully suggests that they should become roommates, sharing out rent and expenses.
It goes… Well, it goes.
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or… Bubbline Modern AU Fic!
[Ongoing — Updates Tues/Thurs/Sun]
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Bonnibel Bubel was soon going to become a professor at the local college. She was the same age as some of the students there, so some might find that a little odd. Bonnibel has always been one step ahead of the usual person, she graduated both high school and college early. Becoming a chemistry professor was always Bonnibel's biggest dream. However, what will happen when Bonnie is crossed with a vigilante, who takes a strong liking to Bonnibel?
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Stolen hairbrush.. Why does it matter? by g3tj1nx3dx
Fandoms: Adventure Time (Cartoon 2010)
17 Nov 2025
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after marcy and pb split, ash swoops in and takes marceline, acting like a douche, and pb with uncontrollable impulses
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Adventure time cast plays crazy 100 iq among us game by Confirmed_jamie
Fandoms: Adventure Time (Cartoon 2010)
18 Oct 2025
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Its me shakespeare guys haha yes i will sign your ass
- Language:
- English
- Words:
- 130
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 61
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The Fallen Feathers Of A "Hero" by AppleBiohazard
Fandoms: Adventure Time (Cartoon 2010)
09 Oct 2025
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hihi!!! this is my first fanfic, so I hope It's good!
so, like the tags say, theres gore, and Finn is Columbina :P
thats it <3 -
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Acompaña a Beth, la princesa cachorro, y su fiel amigo Shermy en sus Fiestas del Té diarias con el Rey de Ooo y su mejor amigo, el Cuentacuentos Real, quienes les comparten historias del pasado... una época ya olvidada, solo recordada por aquellos que vivieron para contarla hoy.
- Language:
- Español
- Words:
- 654
- Chapters:
- 1/?
- Hits:
- 65
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Finn sees marceline and bubblegum kissing.
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In the sterile calm of The Glass Garden, Bonnibel Bonnaire faces Marceline Abadeer. Between them lies a fragile question: can one life save another, or will both come undone?
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Breeding Royals in the Land of Ooo by Atomsk_the_Pirate_King, Twilight_Master_Emerald
Fandoms: Adventure Time (Cartoon 2010), Sonic the Hedgehog - All Media Types, Cuphead (Video Game), The Amazing Digital Circus (Web Series)
24 Sep 2025
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In a nutshell, what if the Princess of the Goblin Kingdom, 20ish years past the Canon end of Adventure time, got kicked out from being too eager to dominate her people being a natural futa with Golem like Stamina thanks to her being Whisper Dan's daughter... and she dominated many in kinky ways and as a result her mother kicks her out for some time to run damage control for possible birth related reasons and this spirals into a sex filled adventure for the Futanari Goblin hybrid princess... enough said this is a VERY kink heavy story with bodies with large portions for most of the ladies here, Futanari, and much more.
Requested by Brightblight.
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Levi X reader | Adventure time by Queenukekxtty
Fandoms: Adventure Time (Cartoon 2010), Shingeki no Kyojin | Attack on Titan, Attack on Titan
05 Sep 2025
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Reader and Levi Ackerman dive into wild, magical adventures full of humor, danger, and playful romance, adventure time edition.
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Exploring perilous dungeons is not for the faint of heart.
Bubblegum, Flame Princess and Marceline are far from 'faint of heart'.
Doesn't mean things will just go their way. -
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Ordered by the Big Boss, Prismo gathers a large assortment of folks across Ooo to react to a universe where Finn Mertens lived a normal suburban cushy live and is transported to an alternate Ooo where the adult 21-year-old Finn must survive in a bizarre and alien world; an Ooo that never had a Finn and never met Jake.
(Adventure Time characters react to an alternate universe Ooo where things are different)
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LSP did something horrible (novelty), but she won't get away with it this time...
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Finn finally deserves the support he needs, poor boy.
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Finn's friends being amazing at a time like this.
(and another supporting tales)