1 - 20 of 242 Works in Autistic Leonardo (TMNT)
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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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In the Footsteps of a Child by FadedLilly06
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
06 Oct 2025
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Summary
Leo isn’t one to be vulnerable, instead, she buries her problems in hopes they’ll disappear. But sometimes she doesn’t have a choice.
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Leo is sometimes little and her family convinces her that it's okay. (Little Leo oneshots)
Series
- Part 2 of Tmnt Oneshots (rottmnt/2012)
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Summary
Timothy has a harmless, but onesided, crush on leo, and isn't aware he and casey are dating when they first meet.
His three brothers take it upon themselves to not tell the poor human, or turtle.
Series
- Part 3 of CASEYNARDO
- Part 18 of 2012 leonardo-centric
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Blessings and Curses by Averie_sol
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
01 Oct 2025
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Summary
Leo had gotten rid of his evil cursed hair, and successfully escaped both the hotel and prison... but that didn't mean the curse was fully gone.
OR
after that evil hair episode leo still feels some effects of the curse, and continues to fall asleep uncontrollably
Series
- Part 14 of the stories of sleepless nights
- Part 5 of Rise Leonardo-centric
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Across the Void by FadedLilly06
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
30 Sep 2025
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Summary
Two different worlds. Two different teams of siblings. One enemy that refuses to stay buried.
When Raph vanishes through a crackling portal, her family discovers a nightmare they thought was over: the alien conquerors are back, their grotesque machines spilling across dimensions. A rescue mission becomes a race against time as the turtles search rooftops, shadowed alleys, and hidden realms where mystic power is stripped away — while Raph fights to keep herself from falling into the uncontrollable fury of her Savage state.
But this battle isn’t theirs alone. Another team of turtles, older, battle-worn, and scarred from their own war with the invaders, is pulled into the chaos. Two generations. Two dimensions. And one impossible choice: trust each other, or watch both their worlds consumed.
The portals are opening. The Kraang are waiting. And family may be the only weapon strong enough to survive.
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In the Deep by PlumRoseWriting
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles (TV 2003)
18 Sep 2025
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Summary
To no ones surprise, the sewers are deep. They run like mazes underground, to places you'd never know existed. But the creatures of those places are wandering out. Wandering from the depths into the tunnels of a city they'd long since forgotten existed.
A monster wakes in the sewers.
Tumblr: https://www.tumblr.com/plumroseiswriting
**This is the second arc in my To The Surface AU. The boys are 15, 14, and 13. Raph and Leo are snapping turtles, Donnie is a diamondback terrapin, and Mikey is a red bellied cooter. If you want you could probably stand in 2003 or 2012
Series
- Part 2 of To The Surface
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Leo (michael) in the bathroom by himself... by HOTSOUPPP
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 Sep 2025
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Summary
Leo's done.
Completely finished, he understands that Splinter thinks he can handle this role but he can't. Arguments are getting worse and everyone is counting on him. he can't take this anymore...
Series
- Part 1 of He hopes he isn't just the face man.
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There, There by newwwwusername
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
16 Aug 2025
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Summary
Leonardo goes through hell and comes out with a smile
Series
- Part 144 of Requests
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The Multidimensional Protocol by wheeliequeer
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: Mutant Mayhem (Movie 2023)
09 Aug 2025
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Summary
neonleon: DONNIE WGAT DID YOU DO
Metalhead: Nothing???
neonleon: not you
Mr. Wizard: I didn't do anything
neonleon: not uou either
Ot7xxArmy: who are you and why are you yelling at me
neonleon: OH MY GOD NOT YOU I MESN MY DONNIE
neonleon: @Bootyyyshaker9000 YOU
neonleon: HOW MANY DONNIES CAN THRRE BEOr: Donnie breaks the laws of physics to win a bet with his twin
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Green Thing: The Lost Ronin by Anonymous
Fandoms: Teenage Mutant Ninja Turtles - All Media Types
03 Aug 2025
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Summary
A mutant turtle with no name or memories is picked up by the government. Now he is living in an enclosure like a zoo animal.
(the title is a pun btw)
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Carelessly Broke You Down but I Ain't Done by Lesbians4Leo
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
02 Aug 2025
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Summary
Leo always protected them since he saw himself as the oldest, “If not me then who?” is what he would always say to Raph whenever he tried to get Leo to understand that none of the brothers liked seeing Leo take hits for them.
“At least let me protect you,” Raph stated, trying to look Leo in the eyes as he avoided the contact.
“I can’t ask that of you Raph,” he sighed as he stood, and Raph grabbed his hand. “You’re not asking.”
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After the S1 finale Leo does not come out of the wreckage like he originally does. Raph is lost because now he has to be the one to step up, but he can't find himself too. Until that night theres a crash in the lair and a familiar shadow is coming back home.
~~~
Title is from 'I Ain't Done' by the Crane wives, my fav song, was originally going to be called "They only Love Him Cause Hes Dead" from Crown by Gigi Perez -
Underneath it all by obviouslystupidandlame
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Samurai Rabbit: The Usagi Chronicles (Cartoon)
29 Jul 2025
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Summary
Long walks late at night are Leo's only escape from his family's smothering in the aftermath of the Kraang.
Usagi can't seem to stop messing up and disapointing his loved ones so he begins spending his nights trying to better himself no matter what it takes.
They help each other see the light in the darkness.
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Too Many Turtles by DysfunctionalRequest
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (Bay Movies), TMNT (2007), Teenage Mutant Ninja Turtles (TV 1987), Teenage Mutant Ninja Turtles: Mutant Mayhem (Movie 2023)
19 Jul 2025
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Summary
CaptainLeo:
@everyone
Whoever’s Mikey has been screaming in the ASMR voice channel for three hours straight, could you get him out?HasTheBraincell:
I’m so sorry that’s mine
I wondered why he was so quiet~~Electro~~:
THREE HOURS SHDHSJJSKI_Crave_Chemicals:
This is the third time in four days.
Please control your Mikey or I will have to use force~
In universe 2003, Donnie tries to experiment with the inter dimensional gun the 1987 turtles had given him. Instead, he accidentally creates a multiversal chat room for many different versions of his brothers, and counting.
It certainly makes life…interesting.TLDR: multiverse group chat between most iterations of the turtles. Starts with 2003, 2012 and 2018 but more are added as I go. 50% plot and 50% chaos.
*now includes the 87, mutant mayhem and bayverse boys!*Series
- Part 13 of TMNT Fics
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In Sync by Purpleandbluelove24
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
08 Jul 2025
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Summary
"His body was tight with tension. Curled on the floor, knees tucked to his chest, his whole frame trembled under the weight of invisible static. The world pressed in too closely—every surface too sharp, every sound too loud. Even the feeling of his own skin felt wrong, crawling with overstimulation"
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One time where Donnie was overstimulated and Leo helped him and one time where the roles were reversed and Donnie helped Leo when he was overstimulated
Series
- Part 27 of I love the disaster twins
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You and I'll Be Safe and Sound by bearimy_jordan
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
16 Jun 2025
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Summary
Leo and Donnie bond over their racing minds.
aka, I have intrusive thoughts and acrophobia and gave it to my favorite TMNT guys. sorry not sorry
Series
- Part 7 of TMNT
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The moods surrounding blue by Averie_sol
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
02 Jun 2025
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Summary
leo has these... mood swings? is that what you'd call it? coping mechanisms dont work, he lashes out. He manipulates to get what he wants he needs- no craves control. He loves his brothers with everything in him but theres so much comfort in feeling out of your mind.
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OR leo thinks hes some horrible manipulative fuck up in this fan fic of i take some of my personal experiences, wildly let it take a turn, spin it so leo mayhaps has BPD, totally has PTSD, depression anxiety, etcetera etcetera (because theres totally a universe where hes borderline) and let the angst begin because he has seventy thousand different mental issues ;)
THERE IS TRIGGERING CONTENT. PLEASE READ AT YOUR OWN RISK <3
Series
- Part 1 of Rise Leonardo-centric
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What's mine is yours (Until we find a more permanent solution-) by LeoIsA_Fruitbowl
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
15 May 2025
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Summary
Leo has a bad dysphoria day.
Er- he has a bad dysphoria week.
...Month?He has a bad time, but that's okay! Because Donnie is a genius. And also much more emotionally understanding than canon, don't come at me-
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I Should Have Eaten You In The Womb by Crowdog
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
08 May 2025
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Summary
By eight thirty the lair was running on generator power and Donnie’s ears were ringing so loud he couldn’t even hear the baritone of the motor thrumming out in the open sewers. Note vibrating on the handle because no twin had returned home to rip it off with a roll of his brown eyes before depositing the original propane tank nearby. Donnie couldn’t hear Mikey’s voice as he asked about Leo, he couldn’t feel Raph’s hand as they brought him into the lair to warm up his frozen fingers.
Someone else moved Donnie’s mouth and made his vocal cords vibrate into the open air of their home. Someone else stood in the doorway of their father’s room begging their dad to get out of bed because Leo was missing. Someone else felt the world caving in because all the things that were supposed to be unimaginable were happening right now.
As if panic could knock back a respiratory infection Raph and Mikey hooked the TV up with Donnie’s numb help. The weather report was worse than they last knew. That blizzard that was originally projected to hit tomorrow by one in the afternoon would be here at their doorstep much earlier.
Series
- Part 1 of maybe you weren't a terrible person
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Summary
Leo and casey were practically opposites: anti-social vs social butterfly, awkwardly anxious vs unapologetically loud, pessimistically cautious vs optimistically impulsive, anxiety ridden autism vs hyperactive adhd, and most importantly... turtle vs human.
The leader in blue makes zero effort to even speak directly to casey, but when has the vigilante ever been able to help himself? Especially when faced with someone so interesting.
Orrr
leo and caseys first conversations.
Series
- Part 1 of CASEYNARDO
- Part 15 of 2012 leonardo-centric
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Paint the Sky in Ash by FadedLilly06
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
17 Apr 2025
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Summary
Mikey has always been the heart of the team, the one to make everyone feel better. But who makes Mikey feel better, who even notices he's struggling?
Series
- Part 10 of Tmnt Oneshots (rottmnt/2012)