1 - 20 of 309 Bookmarked Items in Autistic Leonardo (TMNT)
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Summary
this is a rottmnt series for if leo heard donnie and raph giving up on him at the end of the movie !
you NEED to read "the begining" which is the first work in this series, for context.
the rest of these works are alternate endings
happy reading! <3
- Words:
- 16,899
- Works:
- 6
- Bookmarks:
- 13
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5 Times Leo's Brothers Found Him Sleeping in the Most Absurd Places (+ One Time He Slept in His Actual Bed) by a_sunflower_constellation
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
31 Dec 2023
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Summary
Leonardo has insomnia. His brothers knew this.
Leo is prone to crash pretty much anywhere he can during the day. His brothers also knew this.
What they didn't know was just how absurd (and possibly dangerous) some of the places he falls asleep can be.
Series
- Part 1 of Blue Turtle Bainrot
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Bookmark Notes:
This is adorable
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Half and Half by unnamedmystery
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
07 Jan 2023
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Summary
Leo glances up to see a blur of green and purple in front of him. “Donnie! Don, you okay?” Leo asks, his tone dripping with fear.
“I’m fine, Leo. I just hit my head pretty bad.”
Donnie’s voice sounds far away and not nearby. Which causes Leo to stare down at the blurry green, with a hint of purple, form, just a couple of feet away from him, in fear and confusion.
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With Leonardo being forced to stay home due to his severe injuries caused by the Krang, along with his brothers, he tries to make a portal to Huesos to get pizza. But instead, he portal jacks a group of four turtles and three humans; all seven claiming to be alternate versions of his family.
(Or, another classic 2012 and Rise crossover fic.)
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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:
Awwwwwwwweeewwwww the cutie pieeeees
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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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Summary
What happens when Turtle Tot Donnie tries to build an igloo during their big snow day?
Written for the Turtles Together Zine!!
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Bookmark Collections:
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Bookmark Notes:
Little Donnie's a cutie
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A Choice & Its Consequences by Angelpuns
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
04 Apr 2024
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Summary
Mystic rings are not to be trifled with....and Leo must face the seemingly unending consequences of that.
Meant to be read as a sequel to Would It Really Matter, most things won't make sense if you don't read that fic first, but could probably still be read as a standalone. This and the first fic take place mid-season 2, right before the Hidden City episodes.
This fic will update slowly, please be patient <3
Series
- Part 3 of Would It Really Matter
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Sparks of Blue by Angelpuns
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
18 Sep 2023
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Summary
Your typical 'Leo gets left in the Prison Dimension' fic EXCEPT with a dash of mystic mayhem!!
New York City had been quiet for a total of ten minutes. Ten minutes since the portal had closed. Ten minutes since Hamato Leonardo had…since he had….
The technodrome had exploded, leaving behind a ringing in his ears and a pinkish-blue sky that Donnie might have normally thought of as beautiful. Now he could only stare in horror as the clouds dissipated.
Something in him hoped Leo had survived. That their comms would crackle to life and he'd be safe on the other side of the city somewhere. He'd probably tell some sort of stupid joke about how they were all stuck on Staten Island while he was living it up in Manhattan.
But that didn't happen.
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Would It Really Matter? by Angelpuns
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
09 Nov 2023
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Summary
A normal mission ends with Leo questioning his place on the team. Mystic rings are not to be trifled with.
This is mid-s2 (specifically right before the hidden city episodes!), so Leo's portaling skills and overall ninjocity are basically nonexistent.
EDIT: Now that this fic is finished, I will be editing every chapter as well as releasing some extra content! Thanks o everyone who was supportive while I was writing it! I had a lot of fun :)
Series
- Part 1 of Would It Really Matter
- Language:
- English
- Words:
- 60,653
- Chapters:
- 18/18
- Comments:
- 448
- Kudos:
- 1,815
- Bookmarks:
- 303
- Hits:
- 34,375
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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 -
forwards, backwards, upside down by tacit_semantics
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
30 Mar 2025
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Summary
“I dunno what you want me to say, dude,” Mikey says, obviously getting bored with this even as he holds up a hand over his shoulder, fingers crossed. “Me ‘n Dimension X are like this. We’re bros, bro. She looooooves me.”
“She’s an alien hell dimension,” Leo points out, exhausted.
“No one’s perfect,” Mikey singsongs right back, dropping his hand.
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Bookmark Notes:
i just loved leo's internal dialogue here, girl you gotta Lot you're repressing and it's not lookin good!!!
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Bookmark Tags:
Bookmark Notes:
OOF, LEO, YIKES
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evermore ( Dimension X AU ) by coffeejellyenthusiast
Fandom: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
23 Jun 2025
Summary
My little AU (mostly one-shots probably) about an AU where Mikey was in Dimension X for longer than a few minutes and actually in Dimension X for about a year.
Parts will be from different perspectives and involve character studies.
Also I aim to use all Taylor Swift Lyrics as titles. So far so good.
- Words:
- 47,933
- Works:
- 6
- Bookmarks:
- 60
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Bookmark Collections:
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Bookmark Notes:
mikey spent a year in dimension x
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where donnie’s not the only one who goes non verbal by elohyou
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
28 Sep 2022
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Summary
Donnie turned to the doorframe and stared down at Leo.
“Hi…?” Donnie started. Leo’s brain cringed at the noise, it seemed like it still wasn’t used to hearing something other than power chords.
Leo opened his mouth to tell him to go to sleep (hypocrite, he knows) but couldn’t seem to get the words to come out.
———
Aka i think we have plenty of non verbal donnie fics and we need a leo one cuz he is adhd autistic my pals
Aka the one where my mission of spreading my adhd autistic leo propaganda will finally be relevant
Series
- Part 4 of my disaster twins
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you're faking all your pain, you're bleeding on a stage by leones for This_world_of_beautiful_monsters
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
07 Aug 2022
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Summary
Sometimes Leo wakes up, and he knows.
The pain is deep as the day is long, curling around his bones so tight that it's as though it's a part of him. Leo fears that it might be, sometimes.
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Leo gets a cane.
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Bookmark Notes:
Awhhh the end is so sweet <3
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Retrograde Renegades by Littledove376
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
11 Oct 2023
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Summary
updated as the fic continues.
Prologue + ARC 1 Summary
An outing to the Hidden City lands Leo in the clutches of a scientist fox and his rabbit apprentice. He is left with the possibility of never seeing his brothers again, while Donnie deals with the consequences of his choices.
ARC 2 Summary
Waking up in an alleyway with no memories of his past, Leo finds himself in a predicament that lands him in the hands of a police officer, a lady named Mildred, and a woman he doesn't know if he can trust. Leo must adjust to his new surroundings.
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Bookmark Notes:
👁️👁️
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Bookmark Collections:
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Hey, Donnie? For future reference? This is NOT how we manage things by BoStaffsAreCool
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 1987)
07 Jul 2023
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Summary
So Donnie may or may not have spied on his brothers alternate dimensional counterparts for his TOTALLY VALID AND ACCURATE conspiracy theory board. What’s the harm! It’s not like they’ll notice.
Right?
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AKA Rise!Donnie stuck his snout into what he shouldn’t have, and the other Donatellos react. In. Ways they also probably shouldn’t have-Series
- Part 1 of For Future Reference AU
- Language:
- English
- Words:
- 52,684
- Chapters:
- 20/?
- Comments:
- 854
- Kudos:
- 1,314
- Bookmarks:
- 237
- Hits:
- 34,120
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Even if it Kills Me by LittleBabyMothMan
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
08 Dec 2022
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Summary
He didn't mean to literally hurt him and force out such a yell that no one has ever heard before, but maybe almost killing your brother could bring them so close.
OR
Raph cracks Leo's shell. Most generic hurt/comfort ever.
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The Home That's Not Home. by LeoCentric
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
24 Oct 2022
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Summary
"Your, you're a..." The Michelangelo rambled, unable to form a coherent sentence as he released the turtle teens wrist, scrambling back. . . "Leo… IT'S YOU." He accused panicked eyes slipping into something foreign. As if his breath was not ringing with worry, he crept ever so closer.
-----2012 Leonardo sneaks out for a break, feeling the pressure of being leader weighing heavily on his shoulders. This doesn't end so well when he finds himself struck down with a dirty blow by the foot clan and then sucked up into a portal. Will Leonardo find a home in the new world? Will he ever get back home? And if he does, will things change for the better?
Series
- Part 1 of 2012 Leo
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Bookmark Notes:
On chapter 4 ...Might not be updated
12 Leo came out of the portal heavily injured
12 Leo in rise universe
It's Leo Fault 😦
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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
- Language:
- English
- Words:
- 200,461
- Chapters:
- 70/?
- Comments:
- 2,426
- Kudos:
- 4,744
- Bookmarks:
- 450
- Hits:
- 133,193
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Bookmark Notes:
THE TMNT chat fic
Peak Cinema -
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The Shadow of a Dead Brother by lunarleonardo
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
05 Jun 2023
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Summary
There were a select few things that he could remember. A glowing, golden light, radiating warmth and need. That suffocating darkness had been abruptly ripped away from him as he was suddenly falling, falling, falling.
And all of the sudden, he's a Foot soldier with some pretty whack amnesia. Huh. Well, he'd probably be fine.
It wasn't like he was going to have an identity crisis or have to, like.. attack alternate versions of himself or his brothers, or anything. Yeah, not at all.
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TLDR: rise!leo falls into the 2012 dimension instead of his brother's arms, gives himself some pretty damn bad amnesia, and shredder basically kidnaps him.
- Language:
- English
- Words:
- 114,913
- Chapters:
- 27/27
- Collections:
- 3
- Comments:
- 467
- Kudos:
- 1,764
- Bookmarks:
- 324
- Hits:
- 43,950
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maybe you weren't a terrible person by Crowdog
Fandom: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
24 May 2025
Summary
Pre-Leotello stories from their childhood, teenhood, and all the way to the moment they lost The Key. These stories explore Donnie and Leo before they are anything more than brothers. Their relationship, their history, and their struggles growing up with a father that tries his best and doesn't always do right by them. These stories are canon to death is our third wheel and it's kinda cringe which follows the Donnie and Leo in the Doomed Timeline that Casey Junior comes from.
- Words:
- 57,119
- Works:
- 2
- Bookmarks:
- 3