1 - 20 of 1,298 Works in Bowser Jr. (Nintendo)
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When Mario landed in the mushroom kingdom, he hadn’t seen where Luigi ended up. After months of no sign of him, he was assumed dead.
Meanwhile, Luigi manages to stay under Bowser’s radar for weeks in the darklands before being caught. Kamek, seeing his potential, proposes to Bowser that Luigi would work for him as a spy.
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Gorgeous screenshots from games by Mariofan2
Fandoms: Super Mario & Related Fandoms, Super Mario Bros. (Video Games), Thomas the Tank Engine & Friends, Super Mario Galaxy (Video Games), Mario & Luigi Series (Video Games), Mario Kart (Video Games), Super Mario Odyssey (Video Game), Donkey Kong Country, Luigi's Mansion (Video Games), Wario Land (Video Games), Paper Mario Series (Video Games), Yoshi Series (Video Games), Captain Toad: Treasure Tracker, Princess peach Showtime, TUGS (TV)
10 Feb 2026
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screenshots from games and other media That I thought look gorgeous.
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I Just Want to Be With My Wife by ICanSingNoRequiem
Fandoms: Super Mario & Related Fandoms, Super Mario Bros. (Video Games), Super Mario Odyssey (Video Game), Paper Mario Series (Video Games), Mario & Luigi Series (Video Games), The Super Mario Bros. Movie (2023), The Marvelous Mrs. Maisel (TV)
09 Feb 2026
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Starting the career was the easy part. Keeping it is a whole other ball game.
Disappearing for the whole summer and starting a new romance? Forget it.
And yet, Luigi's gonna do it all.
What could happen?
Series
- Part 2 of Luigi, the Super Mario Brother!
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Various Merchandise of the Mario series by Mariofan2
Fandoms: Super Mario Bros. (Video Games), Super Mario & Related Fandoms
10 Feb 2026
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A collection of the various Merchandise from the Mario series.
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a collection of all the tumblr requests I've drawn (plus extra bowuigi fluff)
[all art in this collection is SFW]
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Trapped In Silk (Season 2) by SlenderCats
Fandoms: Super Mario & Related Fandoms, Super Mario Bros. (Video Games), The Super Mario Bros. Movie (2023), Paper Mario Series (Video Games), Super Mario Odyssey (Video Game), Mario & Luigi Series (Video Games)
09 Feb 2026
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In this continuation series, we see more of our beloved Italian Plumber and our Hopeless Koopa King as they learn more about one another and the struggles of their new relationship between a King of many nations, and a foreign Human who was previously unknown to this world, it's inhabitants, and the rules of the land.
Follow us, as we dive deep into their back stories, into the history of the Koopa and Mushroom Wars, and learn how all of this started.
Series
- Part 2 of Trapped in Silk
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Mario & Steven: Dimensions Collide by thecyrious1
Fandoms: Super Mario & Related Fandoms, Steven Universe (Cartoon)
09 Feb 2026
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After the destruction and recreation of the universe, Mario's birthday is turned into a holiday known as Super Mario Day. One year, the evil Bowser attacks once again, and this time he has a horrifying new power: the ability to travel to other universes entirely separate from his and Mario’s own. Mario pursues Bowser into one of his portals and ends up in a mysterious new universe, where he meets and befriends a half-human, half-alien boy named Steven, who also happens to be a universe savior celebrating his birthday. Things unfortunately only get worse for both boys, as they soon find out that Bowser and an old friend of Steven’s have joined forces to fulfill an ancient grudge and conquer all the dimensions of the multiverse. Will Mario and Steven have what it takes to defeat this alliance, or will all existences be plunged into eternal darkness by two vengeful souls?
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The Wahs decide they need a number three to even out their relationship--Luigi was not part of the plan. Mario and Waluigi are definitely going to kill him, but Wario thinks it might be worth it.
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BEHOLD THE KING! by Rocboi135
Fandoms: Super Mario Bros. (Video Games), Super Mario & Related Fandoms, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
09 Feb 2026
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Behold! The King of The Koopas Bowser has found himself in the world of my hero academia and as he learns of Hero society he has one goal: BECOME THE NUMBER 1 VILLAIN! He’ll show these chumps how it’s done! GRAHAHAHAHA!
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My Oc Original Character Bella Memoir by RebekhaG
Fandoms: Super Mario Bros. (Video Games)
07 Feb 2026
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Disclaimer : This story contains ABDL and age regression themes, including diaper usage and changes, within a family context. All characters are consenting adults (18+) Minors DNI. The father-daughter and uncle-niece relationships depicted are biological and strictly platonic. There is no sexual or inappropriate content, no incest, and no exploitation. The story explores healthy, nurturing family bonding with full consent and respect. Content is marked Mature due to adult themes and is not intended for minors. Please do not interpret this story as fetish or kink content—it is meant to reflect innocent, loving family caregiving dynamics only. This story doesn't condone incest, inappropriate relationships,abuse,explotation,infantilization. Contains diaper usage,adult diaper changes. Constantly being ask for consent is annoying and frustrates readers. Constantly asking consent every time ignores Bella's consistent happiness, pushing a sterile checklist over heartfelt family bonds and breaks story flow.
Series
- Part 3 of Mario's Daughter
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Mushroom Empires by voydella
Fandoms: Super Mario Bros. (Video Games), Luigi's Mansion (Video Games), Mario & Luigi Series (Video Games), Paper Mario Series (Video Games), Super Mario & Related Fandoms, Mario Kart (Video Games), Super Mario Galaxy (Video Games), Mario Party (Video Games), Super Smash Brothers
07 Feb 2026
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With 1-Up Mushrooms completely extinct, many kingdoms find themselves on the brink of collapse. Bowser seizes the opportunity to invade and take total control of the entire Mushroom World, installing his Military to serve as the governing bodies of the overthrown kingdoms. 3 years later, Mr. L finds himself in what was formerly New Donk City, now branded Wario City, where many displaced residents of occupied kingdoms found themselves.
With Mario’s status unknown, Mr. L has spent the 3 grueling years fighting in the shadows. As Darkland’s most wanted, he feels he would be most safe to practice his vigilante justice in the occupied Kongo Bongo capital on their thin slice of the mainland. When he is encountered by some old friends in an altercation in a dark alley, he has no option but to begrudgingly help them in their mission to take back the Mushroom World, without the help of Super Mario.
I'm gonna try and make a schedule with uploads but expect at least 2 uploads in a week even if it doesn't line up:
New Chapters on Tuesdays and Fridays -
Multifandomronpa 1 Town of Despair by Ilikefinaldestination
Fandoms: Phineas and Ferb, Azur Lane (Anime), Helluva Boss (Web Series), The Amazing World of Gumball, Miraculous Ladybug, Yandere Simulator (Video Game), Dork Diaries Series - Rachel Renee Russell, SpongeBob SquarePants (Cartoon), SCP Foundation, South Park, Dangan Ronpa Series, New Dangan Ronpa V3: Everyone's New Semester of Killing, Dangan Ronpa: Trigger Happy Havoc, Dangan Ronpa 十神 - 佐藤友哉 | Dangan Ronpa: Togami - Satou Yuuya
07 Feb 2026
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Doofensmirtz wakes up in a weird town with a bunch of other people and now has to try to survive
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Jasmine meets the Koopas by TianaKoopa
Fandoms: Super Mario & Related Fandoms, Super Mario Bros. (Video Games)
07 Feb 2026
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Jasmine visits the Mushroom Kingdom a lot after her adventure with Mario and Luigi. One day while at Peach’s castle, she gets kidnapped by the Koopalings and Bowser Jr. While at Bowser’s castle, she gets to know the Koopalings. After getting rescued, she decides to visit the Koopa Kingdom more along with the royal Koopa children, especially the oldest.
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A Stolen Throne by KirbyOfTheStars14
Fandoms: Super Mario & Related Fandoms, Super Mario Bros. (Video Games)
06 Feb 2026
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If anything, Larry Koopa is loyal.
Loyal to Bowser. Loyal to his kingdom. Loyal to his siblings, who he's always had even when he's had nothing else. When war beckons, Larry doesn't care that he's barely fifteen. The objective of war, after all, is simple: destroy the other side.
But things get complicated when Bowser begins keeping secrets and invites a power that costs his kingdom everything.
Taken prisoner by the Mushroom Kingdom, Larry is forced to strike a deal he plans to go back on the first opportunity he gets. Plans, however, have a funny way of changing before one realizes.
Mario is is no hurry to trust Larry, or the far-fetched story he tells about the tyrannical usurper to Bowser's throne. But Princess Peach is in danger, and as soon as his friend is safe, he'll ensure that Larry answers for his crimes.
In the clutches of the usurper, Lemmy Koopa watches his kingdom crumble as a hostage. Escape is his only hope, and just might be possible, with the help of a certain princess who hates his guts.
The odds are stacked against him, but Larry will die fighting for his family and home, if that's what it takes.
Series
- Part 1 of Siblings Are Forever
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Super Royal Assistant! (Bowser x Male Reader) by DreamDepot2
Fandoms: Super Mario & Related Fandoms
06 Feb 2026
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Working for Princess Peach as her official assistant seems like a dream job, until you realize how much you have to deal with a certain Koopa King. Why does he keep kidnapping you with your boss anyway?
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Maybe The Real Bowser Was The Friends We Made Along The Way! by Doze12
Fandoms: Super Mario & Related Fandoms, Super Mario Bros. (Video Games), Super Mario Odyssey (Video Game), Mario & Luigi Series (Video Games)
06 Feb 2026
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In a world where the Koopa Kingdom and Mushroom Kingdom are at peace and allied with each other, Bowser was en route home and then something happened to his Clown Car mid flight. He wakes up to find…himself staring back at him, and the imposter introduces himself as Bowser. Something’s not right here, why are there two Bowsers?
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The Crown by Wrume1bicg
Fandoms: Super Mario & Related Fandoms, Super Mario Bros. (Video Games), The Super Mario Bros. Movie (2023)
06 Feb 2026
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It had all started in the war room. Peach, Mario, Daisy, and Toadsworth were all arguing over the best strategy to deal with Bowser and his reign of terror. How that ended with Luigi in Bowser's ballroom disguised as a Princess, he isn't exactly sure.
AKA: Luigi is tasked to spy on Bowser using the Super Crown to take the form of Princess Luigina of Brook Land. Falling in love with the Koopa King was not a part of the initial plan.
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La llama verde de la destrucción ¡Mr. L! by Eljefe2000
Fandoms: Super Mario & Related Fandoms
06 Feb 2026
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Prometía ser un día como cualquier otro en el reino champiñón, Luigi se encontraba contento luego de un trabajo bien remunerado.
Pero todo cambio cuando Dimentio apareció intentando obtener un nuevo Mr. L, sin tomar en cuenta el poder del Luigi de carne y hueso.
Ahora el villano de papel anda suelto con un cuerpo 3D y está listo para hacer sufrir al reino champiñón, sea tarea de Daisy y su equipo detenerlo, pero ¿Podrán hacerlo?
- Language:
- Español
- Words:
- 6,231
- Chapters:
- 2/?
- Hits:
- 9
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Stars Over the Tides by Mary6532
Fandoms: Super Mario & Related Fandoms, Super Mario Bros. (Video Games), The Super Mario Bros. Movie (2023), Super Mario Galaxy (Video Games), Super Mario Sunshine (Video Game), Super Mario 3D Series (Video Games), Captain Toad: Treasure Tracker
05 Feb 2026
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Rosalina still loved the cosmos. Still loved her Lumas, the peace... the loneliness. When an invitation from one of her closests friends to spent some days together at a resort came one day, Rosalina realized how much she misses the company of the people she grow to care about.
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King's Tour by fireansnow12
Fandoms: Super Mario & Related Fandoms, Super Mario Bros. Super Show! (Cartoon 1989), Mario & Luigi Series (Video Games)
05 Feb 2026
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****Rewrite ****
Sequel to Vassal Princess.
Bowser and Peach's rule has brought much peace. Having grown up in an unloving household, Bowser wants Junior's ascension to the throne to not be as traumatic as his was. To ensure everyone accepts his future successor (and to have quality time with Peach), Bowser embarks on the royal tour of a lifetime with his clan.
Series
- Part 6 of Bowser and Peach's Love Story