1 - 20 of 1,594 Works in Protective Leonardo (TMNT)
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Good Boy, Little Pest by Abbie_Lauren2024
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
20 Oct 2025
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Summary
After Leo is saved from the Prison Dimension, his brothers quickly realize that more happened than they had realized. Leo would get random bouts of feral bewilderment and had random triggers that had not been there before. What had happened to him?
Gaichū doesn’t understand what happened. One moment he was in his home, running away from a beating from Master and the next… well… the next he found himself in a strange new world surrounded by new enemies who seem to know him. Now he has to learn to navigate the peculiarities of this new place and hope Master won’t find him.
Peculiarities such as gravity.
And light.
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Toxic Tonics by Quarantinevibes
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
19 Oct 2025
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Summary
Leo would appreciate it if his brothers informed him when they managed to anger entire towns.
When a run in with Donnie’s growing list of enemies from witch town leaves him and Leo to deal with a nasty spell, the after effects have Leo reeling. He’s determined to play things cool and brush it off, despite his brothers’ growing suspicions at his changing behavior. He’s the leader, after all, he should be able to handle it!
OR
Eight chapters of Leo not handling it.
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Updates daily! -
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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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 ♥
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river rushing by CryptidSun for NerdyBoiYeet
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
18 Oct 2025
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Summary
Casey Jones Jr. realizes he has nothing left in this world.
His family, his friends, his reason to live. He doesn't want to be a thorn in the side of the team anymore, so he tries to take his own life.
(Fic of a fic)
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From Now On by Srae13
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), Teenage Mutant Ninja Turtles (Bay Movies), Teenage Mutant Ninja Turtles (IDW Comics), Teenage Mutant Ninja Turtles (Comics), Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023), TMNT (2007), Teenage Mutant Ninja Turtles: The Last Ronin - Fandom, Batman vs. Teenage Mutant Ninja Turtles (2019), Mighty Morphin Power Rangers & Teenage Mutant Ninja Turtles (2019)
18 Oct 2025
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Summary
“So, what do we do now?” Knight asked.
“I am so glad you asked,” Mike smirked, rubbing his hands together. Spinning around, he pointed a finger at Purple. “Boss’s Donnie, if you would do the honors.”
Purple cracked his fingers. “Let’s get to work,” he declared before the three Donatello’s descended on their workstation.
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OR:It's time for one last adventure to bring back all the fallen brothers.
The thrilling conclusion to 'Multiverse of Michelangelo' and 'For the Glory'
Series
- Part 3 of Four of a Kind
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Endure Alone…or Together? by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
17 Oct 2025
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After being kidnapped by a mysterious organization, the Hamato brothers are separated and experimented on—physically, mentally, and emotionally. Each is told the others are gone. But what their captors don’t realize is that the bond between these brothers is more powerful than any chain, any scalpel, any lie. This is a story of resilience, pain, and the love that holds them together even in the darkest depths.
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Experiment by evilsquidz
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (TV 2012)
17 Oct 2025
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Summary
The shredder has caught both Leo and Mikey and is working with Baxter stockman to test them with a project, horror awaits. How will Leo gets him and his brother out of here when theyre both injured? Where are Donnie and Raph? How did they get here?
Michelangelo and Leonardo are an interesting pair. At least I think so, I mean, they're my personal favorite duo second to the B team.. so I guess I'm testing the waters! -
The Lost Soul by MasterXO159
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
17 Oct 2025
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Summary
Nothing stays buried forever. The past, as deep buried is, always resurfaces... always comes back, even in the least likely moments…
Series
- Part 2 of Betrayals and Supernatural horror
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where we went wrong by qolden
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
Mikey had spent his entire childhood believing he only had one older brother. After an unlikely encounter turns his world upside down, he soon discovers a world—and a family, by extension—that's been hidden underneath his feet the whole time, and he's determined to reach out and make sense of it all.
As it turns out, Donnie is just as desperate to connect with his lost family on the other side of things; all in spite of both his and Mikey's respective older brothers not wanting them to.
(They really, really don't want them to.)
Series
- Part 1 of where we went wrong
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The Scent of Home by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
16 Oct 2025
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Summary
"Donnie braced a hand against the slick tile, his chest tightening as his breath stuttered. His circuits hummed, buzzing under his skin as though his own tech was betraying him. He shut his eyes, but that only made it worse.
Leo, broken.
Leo, gone.
Leo, almost never coming back.
His hand trembled as he reached out blindly, desperate for something—anything—to ground himself. His fingers closed around a bottle. Not his usual shampoo. Not the generic citrus scent he always used. No, this one was his twin’s"-or-
The smell of Leo's soap brings comfort to Donnie, but having his actual twin comfort him might be even better
Series
- Part 33 of I love the disaster twins
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Unexpected Pregnancy by Xichengshipper06
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
16 Oct 2025
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Summary
Raphael is in brumation for longer than his brothers, when he finally awakes he has severe stomach pains. How will everyone react when they find out Raph is in labour and who is the father?
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The one that crawls by DonnieThe_Autism_Creature, RedThe_BeardedVulture (DonnieThe_Autism_Creature)
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
16 Oct 2025
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Summary
Leo swears he had more than just 2 brothers, he remembers having a twin. His older brother isn't making it any better because he just keeps saying 'Leo I think you are just making things up, I know you really want a twin but we have never had a fourth brother, so stop bringing it up.' or whatever. He feels like his brother knows something but he can't tell... He tapped his leg. "You know what I will just look myself i don't need you guys to help me, hmph" he said into the dark, and turned to get ready to leave the sewers. It can't be that hard looking for another turtle that looked similar to him right?
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You Were Scared, So Am I by WritingWithAnxietea
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
ROTTMNT Movie Spoilers!!!
Some people say that being born in an apocalypse is the shittiest thing that could happen. You couldn't agree more.
aka it's basically the movie but reader is Casey's (adopted) younger sibling...chaos ensues.
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YOU WERE SCARED, SO AM I (Rewrite) by WritingWithAnxietea
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
REWRITE OF MY ORIGINAL FIC, TITLED THE SAME!
You didn’t have time for this—the time for mourning would have to come later, when you fulfilled the duty thrust upon you by your masters.
When you were safe with the surviving members of your family, that was when you would mourn for your fallen comrades.
aka it's basically the movie but reader-insert is Casey's (adopted) younger sibling...chaos ensues.
Series
- Part 1 of TEA REWRITES
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Don't expect me to talk by Chausette
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
15 Oct 2025
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Summary
Mikey came back from Dimension-X, finally. It's been three months for his brothers, but far longer for Michelangelo.
He refuses to speak about what happened there and Splinter forbade everyone from asking about it. But Michelangelo's acting strange, he's different.
Between navigating the new changes in the family's dynamics and coming to terms with what happened to Michelangelo, everybody's having a hard time.Series
- Part 1 of Green
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Summary
It was him. He was a child. A kid again.
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OR Leonadro wakes up in his child body and now has to save the world again
{MY ALTERNATIVE UNIVERSE}Series
- Part 1 of SPIDER LILY VERSE
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Survival and Determination: Disaster Twins Edition by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
14 Oct 2025
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Leo and Donnie are on a solo mission fighting against Hypno. During the fight, Leo slips off a bridge and falls into the Hudson River. Donnie jumps in after him and the twins are taken downstream into New Jersey. With no phones, no portals, and Leo badly injuried, the twins must lean on each other to get back home
Series
- Part 32 of I love the disaster twins
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The Brothers Hamato by clairakitty
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
13 Oct 2025
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Summary
The smart lock on his front door trilled, and Raph’s rant instantly cut off, the room falling deadly silent. Leo locked eyes with his brother, and it was clear that Raph hadn’t been expecting anyone else; a quick glance at Takeshi confirmed the same. Like a well-oiled machine, they prepared for an attack—Raph slipped on his brass knuckles, Tiger Claw drew his gun from its holster, and Leo deeply regretted not getting one of his guns from the bedroom when he had a chance. Leo watched, unbreathing, unblinking, as the front door swung open.
Not an enemy.
Hamato Saki. Head of the Hamato family, a subsidiary of the Tatsuo clan. Second in command of the Tatsuo clan, just under the kumichō. Both Leo’s blood father and his oath father.
In a world where the Hamato clan is a yakuza family and the turtles are human, Saki succeeds in killing Hamato Yoshi. Hamato Shen leaves for New York with Donnie and Mikey—leaving Leo and Raph behind. Over 15 years they became the Hamato family's most deadly members, until an assassination attempt sends them out of the country to protect a barely-remembered mother and brothers.
Series
- Part 2 of TMNT Brothers Sun AU
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Rewind by Maple_Leaf_Writes
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
13 Oct 2025
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Summary
Casey learns the two leaders of the Resistance have popped up in the new timeline. Only thing is, they're in the Battle Nexus. Casey plans to do something about it
Series
- Part 5 of Maple's 100 followers Celebration
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Tether by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
13 Oct 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