1 - 20 of 93 Works in Overprotective Leonardo (TMNT)
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Tether by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 Sep 2025
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Summary
Months after the Krang invasion, Donatello begins to experience severe shell irritation. When tests reveal leftover Krang matter lodged deep in his shell from the Technodrome explosion, Leo and Draxum perform a delicate extraction procedure to save him. Recovery seems promising—until Donnie collapses weeks later and begins coughing up blood.
After an emergency evaluation, Draxum delivers the devastating diagnosis: a rare, aggressive form of cancer, likely triggered by the Krang residue. As Donnie undergoes harsh treatment, Leo—driven by guilt, love, and fear—digs into his medical training, determined to find a cure. He refuses to let his twin slip away, even as Donnie weakens by the day.
Series
- Part 28 of I love the disaster twins
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Gapped Knowledge by RonnaO_O
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
05 Sep 2025
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Due to his father's secret about his origin, Donatello's life seems to take an unexpected turn as he finds himself being targeted by the Shredder himself.
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A Donatello-centric story that is set in the 2012 universe and focuses on the struggles of family dynamics.
(The chapters are short and therefore there might be a lot of chapters to this story xD)
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So many Turtles by shaquileoatmeal
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023), Tales of the Teenage Mutant Ninja Turtles (Cartoon 2024)
08 Aug 2025
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He was drifting off to sleep, until he heard a ping from his computer. Not wanting to update yet another system, he tried to ignore it, until the pings got overwhelming and frustratedly Donnie opened the computer.
There was over fifty updates for an invite to a knockoff discord server that he had never downloaded.
Virus? Likely, but he had a firewall that outrivaled the Chinese government’s, so he accepted the invitation.
Only to be greeted by chaos.
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A chat fic I made because my life is hell rn
Might add 2012 or 1987, might not.
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The Ordinary is a Good Place to Die by Sakura_Teas
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (TV 2012), Tales of the Teenage Mutant Ninja Turtles (Cartoon 2024), Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
27 Jul 2025
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Don didn’t know for once.
But maybe that was a good thing.
Good things didn’t typically involve danger though.
But danger was ordinary to him.
It was something that was never good.
But then it occurred,
that to someone like him.
The ordinary is a good place to die.
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After the events of “A Big Blowout”, the turtles agree to assist Bishop in cleansing the city of what’s left of Kraang chemicals and tech before any unsuspecting humans can stumble upon it. Along the way, they come upon a hidden base that isn’t as empty as it should have been, and obviously, battle ensues.
Other than Donnie getting knocked into a table of the Kraangs’ latest experiment, it goes without incident, and the brothers return to the lair, mission successful! Eager to examine his alien prizes before handing them over to the Utrom, Donnie disappears into his lab, and his brothers head to bed. Everything is normal…
…Until it isn’t.
Screams awaken the lair, and frantic brothers follow them, horrified to find an infant Donatello sobbing his heart out on the lab floor.
Several hours later, Bishop reports that they might be able to reverse the change, but there will be no way to return the lost memories. And so, the brothers are faced with a tough choice.
Introduce a stranger, or raise a brother.
Series
- Part 1 of Lil’ Dee & Others
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Metal Controls [DISCONTINUED] by RoseyGlassPoisoning
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
17 Jul 2025
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Summary
The sun was clouded by the dust filled sky, the ashy cloud of smoke framed the technodrome while it slowly drifted from its original position, chunks of its Hall had ripped off and were now colliding with nearby buildings and the empty streets of the recently invaded New York.
Donnie stood there, his body firmly planted on the ruined ground of staten island, gazing up at the clean slice taken through the ships top, not even bothering to care about the cropped ship, more then the faded outline of the portal once there. His twin. Gone? Like that? Just.. Instant, it hadn't even set in yet, no realization past his glazed over eyes.
Gone?.. For real?.. No.. This has to be a.. A joke.
Series
- Part 1 of The Metal Control Series
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The Journal of Hamato Leonardo (3) by Slady
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
15 Jul 2025
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2012 “Teenage Mutant Ninja Turtles”
Daily updates for each episode of Season Three from the perspective of the turtle team leader Leonardo.
Series
- Part 3 of 2012 The Journal of Hamato Leonardo
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The Light Falls Dim by DragonsOfTheWild813
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
14 May 2025
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Rewritten Chapter 1!
A void has existed long before time.
This void was pitch black and rested between death and the living.
This vacant plane of reality was destined to be empty for all eternity.
But slowly, its fate twisted until the destiny became futile to truth.
Four colors began to glow in the void, a glowing orb of blue, red came after, then to be copied by purple, and then, at last, orange.
The colors shone with great brightness, a blinding sight.
Each vibrated with a unique personality.Blue was the leader, caring and loyal, but he's burdened with perfect expectations.
Red was strong, a tsundere on the inside. Yet, cursed with the overwhelming weight of being the family protector with anger issues.
Purple was a genius, determined with fascination, yet, a lot of stress was put on the kid by demands to fix things.Orange was last, the light in the dark void. He'd enter a room and shift the mood instantly. His optimism never halts on a mission. He's too bright for one to comprehend.
He wasn't the one that people wanted to, or assumed to flicker away...Series
- Part 2 of TMNT Mikey (Stories with a Oneshot book)
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Fault Lines by ForRuin
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)
04 Apr 2025
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After the death of their father, Leo, Raph, and Don discover the secrets he left behind; a mysterious house in San Francisco, a powerful magical lineage, and a scrawny kid who feels strikingly familiar.
Meanwhile, demons and monsters lurk at every turn. Can they stay alive (and pay property taxes) long enough to figure out what the hell is going on?
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The human/magic/90s AU that nobody asked for!
-Updates on Fridays!-
Series
- Part 1 of Unbound AU
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Stars by Chance_of_Chaos
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2003)
29 Mar 2025
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Summary
Leo wanted to stand there with his brother, gaze into the beautiful lights that almost seemed to gaze back. When Leo thought of a perfect world, it was just this: his brothers happy and free, under the stars. He forced himself to look back down at the ground.
or:
Role swap AU where Oroku Saki is mutated into rat, and Hamato Yoshi is head of the foot clan. But this story isn't really about them. It's about four brothers, living in the sewers with their sensei.
Not based on any iteration in particular, but perhaps closest to 2012.Series
- Part 1 of RatSaki AU
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When I Said I Was Asexual I Didn't Fucking Mean This. by Anonymous
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
06 Mar 2025
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"Asexual reproduction.” Don had replied once out of the blue, his response to Leo's poking and prodding. Tired of Leo’s endless questions. “I’m reading an article on asexual reproduction, specifically on Parthenogenesis”
“Why?” Leo had pried humouring his brother's boring facts at the time. “Also what is that?”
Little did he know he was about to find out a little too personally exactly what that is.
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.“Well aren't you cute” He giggles as it all settles in, a sharp prickle in his throat as he took the time to run his thumb against the side of the shell before speaking. “I will call you green.” He declared setting his child to rest among the stars of his eyes, his anchor, his moon.
The egg doesn't respond, its an egg of course, but Leo blinks memorized at it all the same.
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This one is where the antidote worked differently and just He rearranged the formula and gave a second mutation to the brothers.
Parasitic Chapter! -
In Which The Author Uses Every Excuse In The Book to Turn A Ninja Turtle Into a Infant/Child by NinjaNekosLibrary
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
20 Jan 2025
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Pretty much just what the title says. Mainly 2012 turtles, but I’ve got some 2018/2003 in the works. Maybe even Mutant Mayhem one day!
It's a series of OneShots/Drabbles that may be focused more around Donatello than other ninja turtles because I find a mini Dee absolutely adorable!
Feel free to drop requests for him or other turtles as tiny tots and I’ll see what I can do!
Series
- Part 2 of Lil’ Dee & Others
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Sunflower Sketchbook Spreads and Superheroes by Royal_They
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Spider-Man: Spider-Verse (Sony Animated Movies)
07 Jan 2025
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What if Miles and Mikey were art friends online but they didn't know the other irl and then one day they meet but still don't know who the other is but they get along instantly?
Idk it's just a silly fun idea I had that I wanted to write about.
Edit: This was meant to be silly and fun but apparently, I can't stop myself from writing angst. So.
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a place for us by taizi
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (TV 2012), TMNT (2007), Teenage Mutant Ninja Turtles (IDW Comics)
21 Dec 2024
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Summary
“Why did I say that,” Leo mutters. It doesn’t sound like a question.
Donnie answers anyway. “Because you’ve refused every single one of my attempts to get you into therapy. Telehealth exists, Nardo. We’re on a very good insurance plan.”
“Since when do we have insurance?” Raph says. He’s peering out from under the overhang into the rain, like maybe Mikey’s going to make a surprise reappearance. “Are you frauding some sleezy millionaire again?”
“Just doing my part,” Donnie says mildly.
—chapter 71, you’re gonna find yourself somewhere
Series
- Part 7 of Problem Child
- Part 2 of Wishes
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Unsheathed by Shimonu
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (IDW Comics), Teenage Mutant Ninja Turtles (Comics), Teenage Mutant Ninja Turtles (Mirage Comics), Teenage Mutant Ninja Turtles (TV 2012)
17 Dec 2024
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Leo doesn't move like he used to. Mikey notices these things. Always has. The way his oldest brother flows through combat now. How he processes threats before they manifest. How his blades find paths that makes Mikey's breath catch. Tonight's mission should have been impossible. Too many enemies, too many variables, too much that could go wrong. But Leo made it look easy.
Series
- Part 46 of Scarred
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Victories by Shimonu
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (IDW Comics), Teenage Mutant Ninja Turtles (Comics), Teenage Mutant Ninja Turtles (Mirage Comics)
14 Dec 2024
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Summary
Don's hands didn't shake as he cleaned the wound on Leo's shoulder. They never did anymore. "You could have called," he said quietly, focusing on the neat row of stitches he was placing. "When you first spotted them." Leo remained perfectly still under his brother's ministrations, "There wasn't time."
Series
- Part 35 of Scarred
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Protection by Shimonu
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (IDW Comics), Teenage Mutant Ninja Turtles (Comics), Teenage Mutant Ninja Turtles (Mirage Comics), Teenage Mutant Ninja Turtles (TV 2012)
12 Dec 2024
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Leo flinched. Actually flinched. Too far. But right now, Raph didn’t care. "Five months." Raph's voice broke, "Five months of not knowing if ya were alive or dead. Of finding empty labs with ya blood on the floor. Of…" He couldn't finish. Couldn't voice the horror of those endless months. Of knowing exactly what Bishop was capable of. And being absolutely helpless when it mattered most.
Series
- Part 30 of Scarred
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Unspoken by Shimonu
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (IDW Comics), Teenage Mutant Ninja Turtles (Comics), Teenage Mutant Ninja Turtles (Mirage Comics), Teenage Mutant Ninja Turtles (TV 2012)
08 Dec 2024
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"Ya had a death wish!" The words exploded out of Raph before he could stop them, "Runnin’ in there alone. Again. Takin’ on twice as many as ya could handle. Again." Leo's jaw clenched, "Someone had to-" Raph cut him off. "Had to what? Had to be the sacrifice? Had to prove something?" "Had to keep you safe!" The words tore from Leo's throat, raw and jagged. The silence that followed was deafening.
Series
- Part 27 of Scarred
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Failure by Shimonu
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (IDW Comics), Teenage Mutant Ninja Turtles (Comics), Teenage Mutant Ninja Turtles (Mirage Comics), Teenage Mutant Ninja Turtles (TV 2012)
07 Dec 2024
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Summary
Everything felt wrong today. Leo had woken at 3 AM, heart racing from dreams he refused to remember. The lair's familiar shadows had seemed deeper, darker. Wrong. By morning practice, his skin felt too tight. Like it didn't belong to him anymore. "Raph, your guard is dropping." The words tasted like copper in his mouth, "Focus." A muscle jumped in Raph's jaw, but he adjusted his stance without comment. Wrong. Everything was wrong.
Series
- Part 26 of Scarred