Chapter Text
Leo is keeping something from Donnie. And Donnie *knows* it.
It takes a lot to hide anything from the softshell in the lair, he has cameras in every room and access to all their phones, their computers, their search histories. His family knows it too. So for Leo to be getting something under Donnie's systems must be deliberate.
And Donatello is not. Fucking. Having it.
The slider has been slipping away for months. At random times, towards a random location just before his subcutaneous tracker inevitably drops off Don's radar, only to switch back on when Leo returns. How Leo can activate and deactivate his tech so easily is another issue to consider as well. He has always known his twins' airhead act was a farce. But the extent of Leo's technical abilities still surprises him. First he reprograms Sheldon, now *this*???
No matter how sneaky his brother is though, Donnie can only take this as a challenge. Thoughts of respecting Leo's obvious want for privacy, whispered to him through mind Raph, are easily discarded. He needed to know where Leo was going, and why. Call it scientific interest. Call it pride. Call it an obsessive personality.
But it’s certainly not worry.
No. Why would he be worried about *‘Nardo*?? He doesn’t actually *care* he’s just…curious. And so. Donnie finds himself formulating a plan. He has to be careful about this, he has to figure it out in one shot or risk 'Nardo going into high alert. If Leo thinks Donnie is onto his little secret, he’ll never find an opening. He has to cover his bases.
He analyzes what little information he has of Leo's past behavior. There’s no rhyme or reason to *when* he leaves the lair to disappear. Like he only goes on impulse. There’s no evidence that he's being contacted or contacting anyone else. Donnie's pretty sure whatever Leo's doing, he’s doing alone. He always heads in a different direction before he goes dark, but that doesn’t mean he’s not just being cautious and doubling back to a central location. But any attempt to remotely reactivate the tracker during these times have been fruitless.
He needs to get closer.
So, he does. Caution aside, he can’t crack this from a distance, so he waits for an opportunity. The end of a long, exhausting mission, their first trial run post Kraang, and the subsequent 'successful mission dance party' turns out to be ideal. Leo is usually a light sleeper. More so since taking up leadership and that’s when his insomnia even deigns to let him sleep.
He’s stressed. Has been stressed for months. Slightly longer than this disappearing act has been occurring, to be exact. But Donnie isn’t doing this because he’s worried.
Of course he is….n’t.
Regardless, Leonardo is asleep. Sprawled out a kimbo in his train car and dead to the world, more so after Donnie injects him with a tranquilizer. He looks…strong. Even asleep. Donnie finds his eyes tracing along the defined muscles of his brother's arms, along his clavicle, his neck. Donnie stands there above his twin staring for much too long.
An hour too long. Fuck.
He pushes himself away from dark thoughts, ones he buried years ago and promised himself he’d never act on because he has *some* morals. Thank you very much.
So, he shakes himself out of it, he has a mission and it's time to gather some intel. First things first he searches the room thoroughly for anything incriminating that his cameras might have missed, and predictably comes up short. Then, he kneels down next to Leo's sleeping form and slips his finger just under his shell at the back of his neck. This is completely professional, or at least he tells himself he doesn’t enjoy it as he feels around lightly for the tracker.
If he strokes the back of Leo's neck a few more times than necessary, well, that can neither be confirmed or denied. When he does find it his suspicions are confirmed. Leo discovered the tracker’s location under his skin and removed it, taping it to the underside of his nuchal in the same area so he has free access to it.
Smart fucking brat. Donnie tsks.
Donnie quickly removes the tracker and activates the tiny spider arms he keeps hidden in the front hook parts of his battle-shell for microscopic tech work. He opens the trackers casing and places a smaller version, undetectable and always running, inside it. Then he tapes it back where Leo put it.
Next he runs his hands quickly, (slowly, so slowly, savoring every excuse for contact) along the rim of Leo's shell. They all have a decent amount of excess space between their shell's edge and the connective tissue and plastron. Which they often use for hidden storage. If Leo was going to keep any physical clues to his activities it would be on his person.
Lo and behold.
Eureka.
An….old recorder? Donnie sits back and looks at the small, downright ancient rectangle in his hand.
This…was fucking brilliant Leo!
Donnie was struck for a moment, looking at his twin asleep in front of him. Whatever the slider was hiding aside, if he wanted to keep Donnie from discovering it, using prehistoric tech like this was genius. His scanners picked up every piece of technology that came into the lair. Scanning it for wiretaps, malware, and bugs automatically, while logging all access info on his main system. But something like this would be completely undetected. Excitement floods his nervous system as he runs through the endless possibilities of what’s recorded here. What did Leo go to such lengths to keep from him??
Shouldn’t he respect that if he went this far he wasn’t meant to know? Shouldn’t he walk away and acknowledge his brother's boundaries and right to secrets??
………
……
Pfffffft nah.
Donnie sprints back to his lab, gently clutching the recorder like a prize, and seals him himself in his soundproof sanctuary. Sitting himself down in his computer chair, he stares at the recorder, drumming his fingers on the table.
He shouldn’t.
He really shouldn’t.
Mind Raph is begging him to put it back where he found it.
He presses play.
Here we go I guess. I mean this is pointless, I know this won’t help, but Mikey has a way of just *knowing* if I skip one of his ‘emotional exercises’, he thinks I need to express myself when I’m truly…alone. No offense to my least favorite twin, but privacy is kinda of a rare commodity. Lolol
He knows I’m hiding something from him in our sessions, and says I don’t need to tell *him*. But I need to tell someone, even if it’s just myself. Or I’ll never get to the heart of it. But that’s the thing!
I already know what’s at the heart of this whole…*situation*, Dr. Feelings!
I know what’s wrong with me. But it doesn’t change anything to *know*.
I still get weak kneed when Raph is lifting weights. I still get slick when Mikey grabs me by the neck to force me into a therapy session.
Casey still has me stuttering and April is still one of the last things I think about at night.
I’m in love.
Fuck
It feels weird to say it out loud.
And! And I know I shouldn’t be, but knowing doesn’t help.
I still want them. Especially Don-
Donnie slams the recorder off with more force than necessary.
Oh.
Ohmigosh.
This. Isn’t what he thinks it is.
It *couldn't* be…
Donnie pulls himself away from his desk, standing briskly and pacing in small circles around his lab with a giddy fucking grin on his face. It can’t be this easy. Life can’t be this good to him. Oh mi gosh oh mi *gosh*- God Mikey really got that phrasing stuck in his head huh?
His pulse is rushing, his head is reeling, his face is flushing. Never had he imagined a more ideal situation could fall into his lap, his hands flap incessantly and energy buzzes under his skin. He’s giggling like a goddamn child. Nardo likes him. Leo fucking *likes* him. Or at least. Wants to fuck him and something more. Which is already so much to take in he’s nearly burning. Euphoric in forbidden knowledge he never thought he’d hear.
But…
He only has a few more hours with this recorder. He needs to get it back to Leo before his tranq wears off. He rushes back over to his chair.
He needs to hear the rest.
I still want them. Especially Donnie, I fell for him first and hardest, I think.
I didn’t even realize what it was at first. He just started making me all nervous and queasy one day when we were like 9. I though I was allergic to him or something!
But it got real obvious, real quick when we hit puberty. And the Raph followed right after and I was just fucking screwed.
Apparently in Japan, twins are thought to be soulmates in another life. And I know we aren’t *actually* twins but damn that’s a nice thought. Isn’t it?
Guh, you’re getting to ~feelingsie~ for this feelings session, Leon. Tone it back.
Talk about what your good at, horny is always better than feelings!
And I mean it's not hard, like, have you *seen* Donnie's thighs??
I’ve been trying to find some excuse for months to make him crush a watermelon.
Or catch me in a leg lock while sparring.
Like DAMN Donnie.
I think I might do literally anything to get between them.
Like, he’s always trying to get me to be his lab rat, and obviously uh, no
But if he offered to let me eat him out after?
Fuck it, I’d let him do *anything*. Short of like…I dunno branding?
.
.
.
I would absolutely let him brand me.
Fuck I’m hopeless. Its pathetic!! Just how desperately and pathetically I’m in love with them all.
And I can’t risk saying anything, no matter how much Dr. Feelings says I shouldn’t hide my emotions. I would rather die in the prison dimension than lose any of them.
And this?
They’d never look at me the same….
And it’s not like I don’t act like a creep already. Basically everything Donnie does gets me hard as a *rock*.
Like when he laughs because he's about to break the Geneva convention? Goggles down with all his spider arms?? That’s a tentacle porns wet fucking dream
How I just know he’s watching me. All the time. Fuuuck I dunno if we just match or if his voyeurism *made* me and exhibitionist
I always think about his thighs but damn have you seen his arms?? You’re not allowed to be jacked AND a nerd Donnie, that’s against the rules.
The way he smells like motor oil and salt…
Or how he can info dump about anything and everything, and he makes it sound so interesting and his voice is so...!!!
I have to run away and complain about it because if I don’t? Even he’ll notice all the damn hearts floating in the air around me like a high school shoujo protagonist
And damn his psycho routine is sexy, I wanna see him go semi lethal.
Wanna see that mad grin as his chainsaws some guy in half, hear that evil laugh as his wipes out New Jersey.
Is Raph really set on this hero thing?…
Whatever
I wanna rub my hands all over his shell while sleeps and tease his slit till he drops
Wanna see his freaky swollen dick
You know I looked up softshell turtle anatomy once
.
.
.
Okay *several* times
And oh my god
Oh my *god*
I want him crying and whimpering on my cock 'God *yes*! yes Leo fuck me harder~ you’re my champion!
.
Kiss me after and say we'll do it again. And again.
.
.
.
God this was a stupid idea, this is only making me want the *more*!
I'm gonna go get laid, this has been your Host Neon Leon, coming to you live from the Eiffel Tower~
This was an audio diary. One seemingly for the exclusive purpose of letting Leo express all his hidden carnal desire for Donatello.
For him.
He sounded so..heady near the end. Like he was getting lost in the fantasy he was providing for himself and, unknowingly, Donatello. Donnie felt his cock swelling under his plastron already. And blindly reached to press play again on the recorder. Only to find he reached the end of the little tape.
No
No no that can’t be it.
He was enjoying hearing Leo yearn for him too much to have it stop there. He was *aching* to hear every single sinful thought his leader had for him. Starved for it. Leo has been disappearing for *months* seemingly to record things like this where Donnie couldn’t hear him.
There had to be more tapes. Donatello sneaks back into Leo’s room, clumsy and panting, but he doesn’t have the mind to care, the tranquilizer should still be doing it’s job anyway. His hands run along Leo's shell more thoroughly searching for additional tapes, allowing himself to be far more indulgent now that he *knows*.
Oh 'Nardo. Hell has nothing on what Donnie's gonna do to you.
But not yet. Oh Donnie plans to make *full* use of this paradigm shift, but first he wants to play with his twin a little. And he wants to hear the rest of those damn tapes. Leo doesn’t have them in his shell though. And with no other leads, and time before he wakes up dwindling, Donnie places the recorder back where he found it and retreats.
But not before stealing a kiss from the slider.
And opening his mouth with his thumb.
And running it gently over that wet tongue. Licking into Leo's mouth with his own tongue. Tracing and memorizing every inch he can. He doesn’t have time to fuck his throat.
Fuck.
He heads back to his lab and and fucks himself on one of his *many* machines built solely for that purpose. Donnie's never cum that hard in his life, his twin's name never felt so sweet on his lips..
He has to find those tapes.
- - -
His chance doesn’t come for a few days. Agonizing wonderful days, of thoroughly enjoying using this information to the fullest, but teasing himself just as much as Nardo in the process. He treads the line of friendly, brotherly affection and then pushes just a tad bit further. Telling Leo to drape himself over Donnie's bare shell when they're alone, claiming he’s feeling anxious about being exposed but too sensitive for his battle shell.
No there's nothing weird about this Leo, are *you* thinking something weird??
Wearing shorts and thigh highs he outgrew a year ago, allowing the slightest bit of fat to spill over the edges and preening at Leo’s stares. A flame boiling hot in his core even as he asks, oh so innocently,
“Nardo you’re drooling, what are you looking at?” It’s a very charged few days, to say the least, and Donnie delights at seeing Leo spiral.
Eventually at around 2:30 in the morning, three days after his discovery, he gets the notification that Leo's primary tracker has been deactivated. But the secondary tracker remains operational.
Perfect.
Leo's seems to have portaled to....Tahiti. Of course he did. Now all the genius had to do was wait. And, just as he hypothesized, after roughly an hour and a half of Leo pacing some random private beach, he portals to a secondary location for exactly 1 minute 23 seconds, then back home to his room.
Donnie knew it. Leo is stashing his journal recordings in a separate place.
There in…
*New Jersey*?!?!!?!!?
Donnie supposes that might actually be the smartest place Leo could hide anything from his family. No one would ever guess he’d even step foot in the state. He once again feels a now completely welcome flutter in his heart at Leonardo's cunning. He is smitten with this idiotic genius.
He sends a drone out to the location, one he built for this purpose specifically. He can’t risk taking the originals to his lab. Leo most certainly would either notice them missing or put back incorrectly. Besides, he wants to keep them. So, he outfitted this drone with a device to copy all the audio onto a single USB. He watches the live feed when it arrives and takes over manual control. The tapes are numbered, dated, and stacked chronologically, oh convenient! So he simply copies them in that order and sends the drone home.
Fuck. Yes.
Donnie is buzzing with excitement, arousal simmers below his plastron but he stamps it down for now, don’t get too distracted. He needs to listen first.
He practically jumps to snag the drone out of the air and retrieve the USB, ah superior technology. There are only four entries. Leo must have been either destroying the older logs, or stashing them in another location. Donnie tsks in frustration.
He’s not pouting.
He's maybe pouting a little.
But still, he queues up the oldest entry, logged about a month before he caught Leo. Excitement permeates his entire being and he hits play.
Okay well these little sessions are just a staple now, huh? Guess Mikey was right…sorta
Better to get it out in private than risk it slipping out where Donnie could hear.
Dee your voyeurism is sweet and *such* a fucking turn on, but DAMN does it make it hard to jerk off.
Regardless, we are gathered here today for Leonardo’s horny sad sack hour for one reason and one reason only. I have discovered something terrible.
Something that will haunt me for years.
Something truly terrible
April. Is a virgin. Talked about that last time. But ALSO
Donnie’s never gotten his dick sucked before.
Can you fucking believe that?! Jesus Christ who would EVER pass up the opportunity?
*Kendra* apparently.
Bitch.
Donnie snickers at that, taking the moment to get more comfortable in his chair. Kendra was his one and only attempt at moving passed his obsession with his siblings. Not the most pure of motivations to date a girl for 6 months. But Kendra was far from pure in motive herself. He caught her trying to hack his main system one day, and it turns out she only wanted prolonged access to his lab. Honestly he should have seen that coming. April sure rubbed it in.
He wasn’t that beat up about it. His pride bruised more than his heart.
Her fucking loss I guess.
Bet she got intimidated by our turtle genes if you know what I mean lol
But me? I was *built* for this.
I KNOW I could blow his mind
Donnie if you let me I could make you *cry*
The shift in Leo's speech was jolting. Donnie almost felt like he’d been caught, the soft shell felt he cock stir as the Leo in the recording started to speak to *him*.
I'd kiss down your plastron and suck on the insides of your thighs
God your thighs look so juicy I would die happy between them
I’d rub your sides and shell, I know just where all your weak spots are, I feel you twitch during medical exams
I do those much more often than I need to but none of them need to know that~
I know you can't feel your front, but the tiny little spines along the edge of you shell are even more sensitive than the big one in the middle
I know the seam under you arms are ticklish
The inside of you elbow
your collarbones...
I already know exactly where I focus u ntil you were already leaking by the time I reach your slit
I'd press my face in and work you open, waaaay slower than you’ll want because I love pissing you off
Make you drop and take in the fucking majesty of that freaky alien cock
God I bet you’d be so *fucking* smug, you *dick*
But I wouldn’t let you preen, don’t want your forehead getting any bigger than it already is lol
Nah I’d overwhelm you all at once with my absolute g.o.a.t throat right away.
And just when you got used to the pace?
I’d pull off completely and focus on your slit instead
God you’d be so fucking mad at me baby but, I promise it’ll make your orgasm SO much better.
But fuck you wouldn’t be that docile would you Dee?
Oh fuck, if I teased you enough, would you grab my mask and force-
Ohohhhh fu-fuckkk hahnh haa
Fuck!
fuck...
Fuuuuuuck.
I just came all over the Statue of Liberty
I better do the right thing and get outta here before anyone sees
This has been New York City's resident incest turtle coming to you live with cum down dripping down his legs. Back to you Jack!
Holy shit.
Leo's always had a silver tongue but.
Donnie was so wet he was dripping *through his shorts* It’s a miracle he hasn’t dropped yet. Donnie promptly discards the offending fabric, letting himself drop as he presses play on the next log. He pulls up a live feed of Leo's bedroom as well, watching the Leo of the present read a comic book as his past self unknowingly unravels the soft shell at his seams.
This one is dated only a day after Donnie discovered the first tape and he started teasing, how did Leo get a recording in without Donnie realizing?? Did he stay close, somewhere unsuspicious and let his tracker stay on? It doesn’t fucking matter. The genius has two fingers in himself before his brother's voice even starts.
God fucking dammit Donnie!!
I know. I *know* it should be a completely normal request for a family member.
But NOT WHEN YOUR TWIN IS A FUCKING FREAK!
….which you don’t know.
Nah, I’m still blaming you for being a stupid fucking tease
He made me bring him body wash. This. Stupid. Fucking. Genius.
Bought body wash and forgot it on the counter. So what happens? Does he just use the shit we already have in there!?
NooooOOOOoOo
He calls ME in
Like one of his dumdum drones, to play fetch
I’m already pissy cuz, bluh, right?
I was just gonna walk in quick, chuck it at his head, and bolt, right? Easy Peasy, only minor unwanted boners! No biggie.
But.
He left.
The curtain.
OPEN.
Donnie did that on purpose. If it wasn’t obvious.
You have no fucking idea how close I was to shoving my way in, fully clothed, and slamming you against the wall Donnie
Fucking you fast and rough with no prep. Because you don’t deserve gentle for being such a tease
I’d smack your ass till you cry and fuck you, while I block you from dropping
Make you scream loud enough the whole lair can hear you falling apart on my dick
I’d rub your sides and grind my heel against your upper slit
Never letting you drop but stimulating you till you were crying *begging* me to let you cum
But I won’t let you
Cockteases don’t deserve to cum, and you’ve been a fucking *menace* the last few days.
This is your punishment.
I’d cum all over your shell and just leave you like that. Desperate and unsatisfied.
FUCK. that would be hot. But you would never take that standing would you?
I sure fucking hope you would get back at me 10 fold
Later that night
Corner me in the live room and get my all restrained in your spider shell arms
Strip me bare and humiliated in front of everyone, oh fuck oh *f-fuck*
I want you to drag your nails down my plastron and bite bruises into my neck
Get so rough with me Papi I'm kind of a masochist over here
Make me moan your name as all of you
Use me use me use me oh god
"Wow Leo you're such a slut. We haven’t even touched your cock yet and you're crying"
“You like this don’t you Leo. You’re so *wet*”
“Do you like being used as a fleshlight in front of our brothers?”
"Want me to give them a turn? It’s what you’re good for isn’t it?"
"We could pass you around like the cum dump you are."
A-and I’d try t-to deny it, but oh fuck you hit so *deep* and Raph would be laughing at me for looking so pathetic as he forces my mouth open and-ahh FUCKFUCK hhhhng
Oh uh
Oops
Damn you really riled me up, huh, Dee?
This has been you host 'premature ejaculator' Leonardo Hamato on some skyscraper in the Hidden City.
Fuck me man.
Donnie was melting. How Leo could so thoroughly debauch him without even meaning to was beyond comprehension. He was so close already. Imagining doing everything the slider described, laying him out and pulling his twin apart just as mercilessly as he was unwittingly doing to the genius.
Fuckkk
Donnie signaled blindly for a drone to fetch him a self thrusting dildo. Attaching it to his chair, he sank down on it with an open mouthed, panting grin. Going cross eyed as he jumped it right to its hardest setting.
Yes.
Yesyesyesyesyesleo-!
He watched the Leo on his live feed shift to toss his comic away and roll down his sweatpants as Donatello was unceremoniously shoved into the most mind blowing orgasm of his life. And it seemed present Leo had the same idea on a delay as he leaned back on his bed and began casually teasing himself, rubbing casually at his tail through his spandex shorts.
Donnie pulled up the final recording as he settled in to watch the slider and catch his breath, he kept the dildo inside, setting it to a slower, easy pace. This was the most recent recording. Spoken just hours before in Tahiti, after this Donnie would tell Leo plainly what he knew and exactly what he thought about it.
He could hardly wait.
What filthy, sinful shit was his twin thinking about him earlier today? God what was he thinking now? Donnie could really go for a mind meld right about now. But the words flitting through his headphones will do just fine.
No intro this time..I just…
Something wonderful. Awful? Happened last night. And sometimes I almost forget that I have so much worse than just being horny all the time
The power went out during the storm last night.
No. It hadn’t, Donnie is just clever and willing to let his brothers shiver for a night to get what he wants. He has no regrets.
The Leo on the live feed has dropped and is looking around for something. A vibrator? Donnie would love to see him fuck himself.
And Dee…asked to sleep in my bed with me.
We’re turtles, we need warmth. It makes sense.
I know it didn’t…*mean* anything…to him
But
God it was the best night I’ve had in a long time.
I’m such a pathetic creepy sack
I didn’t get horny once! But I was so happy, it’s just as bad.
I watched him till I feel asleep. And I never felt so rested.
Did you know Donnie sticks his tongue out just a *tiiiiiny* bit while he sleeps? Oh it’s straight up precious
When I woke up, he was already awake and that made me want to fucking die because, just, WHY? I thought he’d leave as fast as he could.
But instead of immediately jumping out of bed to work on some project or even fix the heating, Don just. Laid there with me, he didn’t say anything, didn’t leave, just snuggled in closer.
Pulled up Jupiter Jim's Pluto Vacation 4 on a mystic projection. I never wanted it to end.
Leo on his screen pulls out the recorder with the first tape inside. Donnie absently wonders if it’s a twin telepathy thing that subconsciously causes Leo to want to use it for spank material right now. He grabs some equally ancient looking headphones on his nightstand and plugs them in. Donnie takes a moment to drool at the fat spade shape of his dick when Leo lets go to press play on the recorder. He looks surprised by something.
Donnie is too distracted to dwell on it.
I never wanted to tell him the truth so badly.
I know he was only with me for the body heat but
He made it so easy to feel like if I just told him, everything would be okay
I could just imagine leaning up and kissing him, just as Atomic lass and Atomic lad did at the climax.
Perfect cheesy timing. Donnie would love it.
Maybe he wouldn’t even be surprised. Maybe we’re the same.
He'd just kiss me back like we had done it a thousand times and say,
“I love you, Nardo.”
and
I'd say-
"Donnie!"