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Multiverse Turtle Mayhem by IDIOTICBEAN101
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (Bay Movies), Teenage Mutant Ninja Turtles (IDW Comics), Tales of the Teenage Mutant Ninja Turtles (Cartoon 2024), Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023), Batman vs. Teenage Mutant Ninja Turtles (2019)
18 Oct 2025
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Summary
One day Rise!Donnie gets bored. He decides "Today, I'm gonna mess with the boundaries of time and space!"
And suddenly, there's a group chat that can reach mutant turtles in other multiverses. -
Playing (least) Favorites by Chaos_Breeds
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
23 Oct 2022
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Summary
“Technically, it’s Mikey’s fault,” Leo conceded, with half a smile. “But you’re welcome to pin it on me, your least favorite brother.”
CRASH.
Leo jumped a foot in the air, as Donnie’s toolbox hit the floor, halfway retracted into his shell and just barely caught himself from wiping out entirely. That should have been hilarious, except Donnie couldn’t think straight. He marched forward, heedless of the very rare and expensive tools being trampled underfoot, and met Leo’s wide blue eyes with his own glare. “What did you just say?” he demanded.
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Leo, in all his self deprecating glory, thinks he’s Donnie’s least favorite brother.
Donnie, personally, will not let that slide.
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Bookmark Notes:
Finished
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Bookmark Collections:
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Summary
Leonardo can cook now. They promise. Really. It's fine. THeY cAn CoOk!
Series
- Part 4 of Leo's Adventures with the Internet
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Operation Sleepy Slider by Artralic
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
06 Oct 2024
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Summary
“Trust me this is way more serious.” Raph tries to bring the younger turtles up to speed, only to be interrupted.
“Booooo! No, you know the rules! No seriousness on Lazy Sundays!” Mikey is a big proprietor of lazy days and makes sure everyone follows the rules of having a stress free day. It works only because it guilts them all to rest, if only so Mikey isn’t stressing about them not resting.
“It’s Thursday Micheal.”
“Yeah but it has the spirit of Lazy Sunday”
“Guys!” Raph’s outburst brings their attention back to him, but their deadpan stares show they still don’t appreciate the seriousness Raph is trying to infringe upon their relaxation.
“Guys, we got a code Sleepy Slider on our hands.” Raph’s voice is grim, his face shadowed with the weight of the situation they find themselves in.
With the code spoken, Donnie and Mikey sit at attention.
~ ~ ~
or Leo's insomnia strikes and his brothers help him get some rest.
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Bookmark Notes:
“Trust me this is way more serious.” Raph tries to bring the younger turtles up to speed, only to be interrupted.
“Booooo! No, you know the rules! No seriousness on Lazy Sundays!” Mikey is a big proprietor of lazy days and makes sure everyone follows the rules of having a stress free day. It works only because it guilts them all to rest, if only so Mikey isn’t stressing about them not resting.
“It’s Thursday Micheal.”
“Yeah but it has the spirit of Lazy Sunday”
“Guys!” Raph’s outburst brings their attention back to him, but their deadpan stares show they still don’t appreciate the seriousness Raph is trying to infringe upon their relaxation.
“Guys, we got a code Sleepy Slider on our hands.” Raph’s voice is grim, his face shadowed with the weight of the situation they find themselves in.
With the code spoken, Donnie and Mikey sit at attention.
~ ~ ~
or Leo's insomnia strikes and his brothers help him get some rest.
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Two Years, Two Keys by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
16 Oct 2025
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Summary
Two years after the near Krang invasion and the eve of their 19th birthday, Donnie notices that Leo is not himself, becoming quieter and more distant. With some gentle coaxing, Leo finally breaks down, confessing that he has felt trapped and tired, the trauma from his near-sacrifice and the invasion not leaving him even after two years. Donnie decides to do something about and surprises Leo with an apartment that the two of them can share together
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A series of stories of Leo and Donnie sharing an apartment in the Hidden City together, full of laughs, tears, and healing that can only be shared between two twins
Series
- Part 31 of I love the disaster twins
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Trials of a Young Heart by theasternaut
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012), Usagi Yojimbo, Samurai Rabbit: The Usagi Chronicles (Cartoon)
01 Aug 2025
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Summary
Leo is fine. Despite what his brother’s might tell you, he’s doing great. Sure, he hasn’t quite been himself since Splinter’s death, but he’s adjusting and his brother’s silly little intervention wasn’t going to change that. He tried to tell them as much before the dart pierced his skin and everything went black.
He now finds himself half-way across the world in Japan at the mercy of his unknown assailants. Just as he’s about to give up all hope, he’s saved by a band of Yokai Samurai led by a rather nice white rabbit. He’s not sure how he’ll ever get home, but he trusts Yuichi Usagi to get him there.
Series
- Part 1 of Trials Series
- Language:
- English
- Words:
- 173,416
- Chapters:
- 17/17
- Comments:
- 293
- Kudos:
- 545
- Bookmarks:
- 91
- Hits:
- 14,503
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Bookmark Tags:
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you're my baby (say it to me) by zaru
Fandoms: Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023)
01 Jun 2023
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Summary
"Broke my glasses," Donnie said quietly.
"Eh, I'll be sure to steal some new ones for you," Raph muttered to the other, "Then you can mess around with the, uh prescription."
Donnie sniffled, but he snickered slightly, and Raph smiled a bit at that. Leo chuckled slightly as well before turning to face the building with wide, worried eyes. "..Mikey." His voice broke at that, and tears began to stream down his face.
Donnie then faced the building with wide, horrified eyes. "..Mikey?" He repeated, voice shaking. "M- Mikey?" He then shrieked, eyes wide.
"No- no, no, shit," Raph gasped out, letting go of Donnie and facing the building. "Mikey?!" He yelled, praying for an answer- or just something. A sign to let them know Mikey was okay, or- or at least alive. Mikey had to be alive.
***
or, Mikey gets trapped inside a building, and they don't know how to get him out.
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Bookmark Tags:
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shells don’t fix themselves by NeopetsKid
Fandoms: Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023)
07 Aug 2023
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Summary
The battle ends, and the brothers are made immediately aware that they are, in fact, pretty seriously injured.
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ROTTMNT: After Dark (minors dni) by StormFireGirl
Fandom: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
25 Jan 2023
- Words:
- 29,569
- Works:
- 4
- Bookmarks:
- 9
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Bookmark Tags:
Bookmark Notes:
To read and fave part 1
Need to read other parts
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A Cerulean Aro Straight to the Heart by im_dead_tired
Fandom: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
15 Apr 2024
Summary
fics in no kinda/maybe chronological order that take place after the rottmnt movie.
they center around an Aromantic Leonardo, hence the namesake
(might branch out in the future we shall see, unfortunately i cant write plot so we shall see...)Leo also has ADHD, C-PTSD, is disabled in their left knee, is asexual (sex-adverse), and a demiboy (he/they)
- I wrote this for me okay! U get what U get.
(everyone's experiences are subjective and their own.)they vaguely reference non-canon events that take place after the rottmnt movie cause Leo has to be thrown into a blender until his knee gets fucked up and he meets the buisness end of a window in every universe before im satisifed. sorry not sorry.
- Words:
- 12,950
- Works:
- 3
- Bookmarks:
- 3
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Bookmark Tags:
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Just For You by JustaLittleBitCrazy
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
31 Jul 2025
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Summary
Time ticks by.
Minutes turn into days, weeks bleed into months.
Seasons come and go like the ebbing and flowing tide, bringing with them change as the years pass by.
Wounds heal, scars fade, along with memories.
Some disappear and some stay with a person for life, changing them like the shifting seasons, bringing out the best in some...
but the worst in others.
~~~
Years after the krang invasion Leo is attacked and sexually assualted by a genius he has known for a long time, who learned how to not only grow krang tendrils in her lab but also how to take control of them to make them do whatever she wants. His morally ambiguous twin brother seeks revenge - and what better way than to attack a person's psyche?
Non-con is implied, this au deals mostly with the aftermath.
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Bookmark Notes:
ch11
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Don't Speak and Obey by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
03 Oct 2025
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Summary
While walking through the Hidden City, the twins are attacked by witches. In the aftermath, Leo gets hit with two curses: a speechless curse and an obedience curse. Essentially, Leo can no longer talk and must obey every command that his family gives him. If his family try to get him to talk or he disobeys an order, then Leo experiences a lot of pain. His brothers desperately try and help him, but will they be able to find a cure in time, or will Leo be cursed forever?
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The lights in your eyes fade and life flashes by by NerdyBoiYeet
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
18 Oct 2025
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Summary
Leo is ready to be done. To end it all.
The tensions in his family are at an all time high, everything ruined by his father declaring him leader.
With everyone turning their backs on him, and telling him to leave. So he's going to give them what they want.
He's going to set everything right and do it.
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Bookmark Tags:
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Bookmark Notes:
16
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Shut Out, Astray, Rejected by theasternaut
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types, Samurai Rabbit: The Usagi Chronicles (Cartoon), Usagi Yojimbo
15 Nov 2023
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Summary
Leo disappears from the lair one day with no explanation. Splinter tells them he is gone and the brothers shouldn't bother looking for him because he's never coming back. He refuses to tell them anything else. They ignore Splinter and track down their brother. They are shocked by what they find.
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"Take My Heart And Don't Break It" by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
21 Oct 2025
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Summary
Leo is struggling after the events of the Krang invasion. His intrusive thoughts invade his mind, but he lets Donnie in on what is going on with him. Donnie is now faced with an impossible decision on whether to keep Leo’s struggles a secret or to share it with Raph and Mikey. The answer might not be as clear cut as Donnie thinks
Series
- Part 34 of I love the disaster twins
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Piercing Eyes by itz_me_E
Fandoms: Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023)
05 Sep 2023
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Summary
Leo, too busy taking in the wonderful cheers of New York, barely catches the signs. Barely. He’s the oldest, he’s able to figure out his brothers and know their quirks. So when Mikey’s too quiet and Raph’s slowing down… he knows something it wrong.
And then he spots the spider-web-like crack dancing up Mikey’s shell.
Or: Mutant Mayhem missing scene! The boys’ shells were cracked. Let’s address that.
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if i sleep, could it cost me my world? by Averie_sol
Fandoms: Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023)
14 Nov 2023
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Summary
Leo cant stop thinking about how close his brothers came to dying. All the specific ways in which their lives could have ended. He needs to be awake to make sure it doesnt happen.
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based on a mutant mayhem headcanon i have that the boys had to force leo to sleep after the invasion and raph didnt leave his side (because their red v blue trauma has FINALLY BEEN HEALED THEY BROKE THE FIGHTING CYCLE)
another sleepless nights fic!
Series
- Part 7 of the stories of sleepless nights
- Part 2 of MM leo centric
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Leo's Nightmare (A Mutant Apocalypse Fanfic) by MlpTmntDisneyKauane
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
21 Oct 2025
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Summary
Several years separated in the Wasteland, the family is finally reunited and living in the Oasis, but Leonardo is not mentally well, he is suffering from a trauma, has nightmares every night, and from time to time he distances himself from his family and blames himself for the things he did, from when he was... Maximus Kong.
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A Not So Good Day by Leonardo1885
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
13 Oct 2025
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Summary
The hinges had groaned, and the door caught for a moment before it began to move more easily.
But that’s where Leo’s luck had given out. The edge of the door had begun to swing forward faster than Leo had been prepared for. It had knocked into his bad leg, which had whited out his vision at the same time he’d felt himself falling forward. Automatically, he’d thrown his hand out to catch himself on the wall, but only found open space, he’d dropped his crutches automatically trying to find something, anything to grab onto to stop himself from falling, and had found the edge of the doorframe. He’d had just a moment to realize he was on the wrong side of the closet door when something heavy had knocked into his shell.
With his balance already precarious, and his fingers wet with sweat from all the walking he’d been doing, his tedious grip was wrenched free from the doorframe as he was shoved deeper into the closet before the door had shut, enclosing him in darkness.
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Or Leo finds himself trapped with no way of contacting his brothers. But it's all good because he's technically still in the lair, right?
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Fangs of Love by Sorcha2003
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
19 Oct 2025
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Summary
Leonardo was the Leader of the Turtles, the oldest brother and extremely protective of his brothers. He was a focused and extremely skilled ninja. That's what everyone thought Leonardo was, but in reality, he was a Female Turtle forced by Splinter to pass himself off as male. He was forced to pretend to have a deep, masculine voice, which caused great pain in his vocal cords, and he had to endure Splinter's abuse completely alone. Leonardo wanted to be feminine, to be called a girl, not to have to feel a horrible pain in his throat and, above all, not to have the name Leonardo, which every time it was said caused unbearable pain in his soul. And her life changed when she found an injured vampire bat in the sewers and took it to her room. What she didn't imagine was that this was the Heir to the Vampire Throne and that he was more than in love with the beautiful Turtle who saved him.
Series
- Part 1 of ♥ Leonardo ♥