#tmnt headcanons

[nerdy-turtle-enthusiast]

it’s finally done guys the car mini comic is finally finished and now i can rest

part of fixing apriltello

i definitely see this as a season 4 bit too, like… donnie and april have finally admitted to feelings and are trying to piece together what they’ll be long run

but don will never NOT react this way to a bitchin car

(probably?) my last post before the holidays, so MERRY CHRISTMAS TO ALL AND TO ALL A GOOD NIGHT

(individual panels btc)

[dysfunctional-doodle]

Physically a Leo, spiritually a Mikey.

-> Commissions || My Kofi || Tip Jar :) <-

I want to reiterate the fact I think that Rise Leo and 2003 Mikey are eerily similar in a lot of ways. To those who write Leo as all silent and a shell of himself after krang- I respect you but here me out: he still is a flamboyant king with Issues ™️ and very much in denial/uses humor as a coping mechanism…kind of like 2003 Mikey, right?

(Sorry for the sketch lines and untidiness overall! I don’t have much time rn to do proper art 😓)

[randopineapple]

I DREW THAT ONE MEME IN THE TOTTMNT STYLE !! 😋 (alt version in the undercut)

This one is purely based on headcanons!! I feel like Mikey will be a Fresh Prince fan— Like cmon, a 90’s sitcom about a teenager who is impulsive and digs his own grave every episode? How can Mikey not like that?? Also, Leo would fw Mugman !! They are both blue, both anxious, both the older sibling of a brother in red who messes up everything— Leo IS Mugman.

I will do a Donnie and Raph one if I feel like it 😼

[heartonmyshell]

When He Smells His Brother on You (Rise ver.)

💚 ROTTMNT Turtles/Gender Neutral Reader 💚

A/N: Scent marking headcanon scenarios, anyone? 👀 Anyway, Happy Thanksgiving? 😂

CWs: Possessive/territorial behavior, scent marking, the guys acting a bit feral. Considering the subject matter, it’s not a stretch to say that these may be somewhat NSFW, but not super explicit. All characters are aged-up.

LEO

Leo is lounging on the edge of the skate ramp, tossing one of his katanas in the air with practiced, bored ease. When he sees you enter, he flashes you that classic cocky grin. But the sword fumbles in his grip the second the wind shifts.

The silence that follows is deafening.

He drops from the ramp, landing silently, moving with the fluid grace of a red-eared slider. But the water is turbulent today. His eyes narrow, scanning you, zeroing in on the collar of your shirt. He smells his twin.

“Donnie?” he asks, though it’s not really a question. His voice is light, but there’s a razor blade hidden in the tone.

He circles you like a shark in open water. He stops behind you, and you feel his hand clamp on your shoulder, trapping you in place. Then, he slides both hands under your jacket, pulling you back against his chest. He noses at your hairline, inhaling the scent of his twin, and gives a mocking scoff.

“Boring,” he whispers, his lips grazing your earlobe.

He spins you around, pinning you with a look of intense, possessive heat. He drags his nose along your jawline, rubbing his cheek against yours, effectively wiping away the other scent. His hands wander lower, cupping you, pulling your hips against his to make you feel exactly how jealous he is.

“I’m going to ruin you for him,” Leo promises, his voice a sultry purr. “By the time I’m done with you, the only name you’ll be screaming is mine.”

He kisses you then, demanding and deep, intent on marking every inch of you until the scent of his brother is nothing but a distant memory.

RAPH

The moment you step into the lair, the air in the main atrium grows heavy.

Raph emerges from the projector room. He doesn’t greet you with his usual teddy bear warmth and snaggle-toothed grin. Instead, his nostrils flare, and a low rumble starts deep in his plastron. He stops inches from you, his shadow swallowing you whole.

“Leo,” he grunts. He doesn’t ask; he knows. The scent of his brother is a stain on your neck, a neon sign of a challenge.

Before you can explain, his large hand encases your shoulder. He crowds you against the nearest wall, his size effectively caging you in. Raph is an alligator snapping turtle—a creature of instinct and force. And right now, his pupils are blown wide, eclipsing his normally kind irises.

He leans down, burying his snout into the junction of your neck and shoulder, inhaling deeply before letting out a sharp, angry hiss. “He thinks he’s slick,” he growls against your skin. “Leaving his mark on you like he owns you.”

He nuzzles you, the texture of his skin scraping deliciously against your pulse point, replacing the lingering trace of Leo with his own scent. He bites down gently on your neck, just enough to make you gasp, his tongue swiping hot and wet over the spot immediately after.

“I’m gonna cover you in so much of me that you’ll forget he even exists.”

He pulls back just enough to look you in the eye, his gaze dark and hungry. Raph intends to stake his claim so deep inside you that no amount of scrubbing will ever wash him away.

DONNIE

The lab is loud with the sound of welding and music, but the moment the sensors at the door recognize your biometrics, the noise cuts out instantly.

Donnie spins in his chair, a rare, genuine smile forming—until he smells it. His smile flatlines. He stands up slowly, the mechanical spider limbs of his battle shell unfurling from his back, betraying the agitation he’s trying to suppress.

He smells the chaotic, vibrant scent of his younger brother all over you. It’s messy. It’s loud. It’s incorrect.

“Calculated probability of you visiting Michael before me was low,” Donnie states, his voice monotone, masking a brewing storm of possessive rage. He walks toward you, his movements stiff. “And yet, here you are. Contaminated.”

His hands clamp onto your waist and shoulder, pulling you closer. He examines you, leaning in and sniffing the air around your neck with clinical precision, his face twisting in distaste. Then he cups your face, his thumbs stroking your cheekbones.

“I don’t like sharing,” he murmurs, his eyes dark and dilated, “and I certainly don’t like sharing you.”

As he presses his forehead against yours, his battle shell disengages and retreats back to storage, revealing the soft shell underneath. He begins to kiss down your throat, methodical and wet, placing suction bites in a perfect geometric pattern over the areas where Mikey’s scent is strongest.

“I’m going to conduct a thorough recalibration,” Donnie breathes against your skin, his arm sliding down to tease the hem of your pants. “We aren’t leaving this lab until your biometric readings are exclusively synchronized with mine.”

MIKEY

You expect a flying tackle-hug and a loud “Omigosh!” Instead, when you walk into the kitchen where Mikey is cooking, he freezes mid-chop. The knife lowers slowly to the cutting board.

The playful box turtle vibe evaporates, replaced by an uncharacteristically terrifying stillness.

Mikey turns around. He’s not smiling. His face is blank, eerily calm, which is infinitely scarier than him yelling. He smells Raph on you, and it triggers a primal, bratty defiance in him. He walks over to you, wiping his hands on his apron.

“You smell like Raph,” he states. His voice is soft, but it lacks its usual bounce. It’s deep, flat, and laced with possessiveness. “Why do you smell like Raph, angel?”

He wraps his arms around your waist, burying his face in your neck, inhaling deeply. Then, he tightens his grip. He looks at you, his eyes wide and pitiful, but underneath that puppy-dog look is a feral gleam.

“Did he touch you?” he asks, his hands wandering, gripping your rear firmly, pulling you into his hips. “Did he think he could just take you? Because he’s the biggest?”

He lets out a low growl. He hates it. Hates that his brother’s scent is clinging to his person.

Suddenly, he spins you around and hoists you up onto the kitchen island. He steps between your legs instantly, prying your knees apart with his thighs to settle himself firmly against your center.

“I hate it,” he hisses, again burying his face into the crook of your neck, inhaling sharply before dragging his teeth over the sensitive skin there. He rubs his cheek aggressively against your chest, your neck, your jaw, acting like a cat that’s terrified of losing its territory.

“We aren’t leaving this kitchen,” he vows, “not until I know that the next time Raph walks by you, all he smells is me.”

[obsessedwrhys]

Woke up and saw a new bayverse writer and got super excited! Welcome, we sit in the dark corner with snacks, pillows, and the occasional person that passes by and looks at us crazy 😬🤏

Thought I'd come by and just say hello! And also ask if you'd be willing to give some relationship headcanons for Mikey and/or Raph? If that hasn't been requested yet. Thanks!

ᶻ 𝗓 𐰁 .ᐟ BAYVERSE!RAPHAEL DATING HCS

ᯓ★ lots of fluff, jealousy things (angst maybe), reader goes by she/her pronouns! (This is so late— im sorry—)

Is the definition of mean to the world but sweetest to his girl

The most common scenario is this: He could be talking to Casey and just be saying a bunch of mean shit to him but the moment you approach him to ask him something, he softens his tone and looks at you, narrowed brows with a concerned look as if you're the most fragile thing in the world.

He actually thinks you'll break if he raises his voice at you.

Casey has made fun of him many times for this but drops it each time Raph threatens to hit him.

He calls you babe. That's it.

Sometimes baby girl if he's feeling brave.

You happen to picked up the habit of stealing his things. Or in your words 'borrowing'.

"Uhhh babe... Where's my glasses?"

He's not complaining since it's been the norm for you to wear his glasses out in the open when you go to work or such.

He likes to think its a way of you having a part of him everytime you're away.

But theres no denying that the two of you guys argue every now and then.

Its not that you want to but he just jumps to conclusions very fast. He does try to control it but sometimes his heart speculates faster than his mind thinks.

Like the time he dropped you off at your place and because of how exhausted you were, you failed to notice him leaning in to give you a goodbye kiss when you walked off.

That ruined his self-esteem for sure.

He really thought you didn't love him anymore and he was too afraid to ask you about it.

It was when you noticed him sulking that you finally confronted him.

He's definitely a physical touch kind of man.

He CANNOT keep his hands off of you. NO. NA-DA.

You need the whole world to pry his hands off of you.

His favourite thing to do is to have you in bed where he just wraps his arms around your waist while he rests his head on your stomach. It makes him feel all warm and fuzzy inside.

He has jealousy problems.

He doesn't mind if you're close with his brothers because technically you're part of the family but with Casey or Vern?

Yeah no.

I mean there are boundaries to things.

Casey is smart enough to know not to try anything (in front of Raph) but Vern never gets the hint.

Has tried to get you to go on 'exclusive dinners' but you always said no because you knew how weird the guy was.

Nearly got beaten to shits by Raph if Leo wasn't there to stop him.

Has definitely done the bicep ribbon trend with you. How you were in awe from the way the ribbon elegantly untied itself around his bicep when he flexed his muscles made him feel all prideful of himself.

Never slacks off when working out.

He does enjoy kisses but he gets all awfully shy when you do it in public.

Like if you ever do kiss him in front of his brothers, even a simple peck on the cheek, he would not be able to face them for a moment.

He blushes hard and needs time to calm down.

He loves it soooooooo much when you dress up.

It doesn't matter what your style is because everytime you put in the effort to get all dressed up for date nights. He goes absolutely berserk.

Compliments your looks on a daily basis.

Doesn't matter if its your lazy day where you look a mess.

You're still irresistible to him.

Loves to keep the little things you leave in his room.

Either its your lip gloss or hair tie. He keeps it safe in his drawers just so it doesn't go missing or that you may need it later.

Yes he does sniff your hair tie.

It's only instinct since your hair smells so good.

Yes, the foot clan has kidnapped you a few times and it's ridiculous how many times it has happened. You fell for the homeless person trick AND the stray cat strategy.

All this effort just to ask you to spill any inside information to them.

Like just imagine you tied to a chair as Karai threatens to kill you but you're just wondering how long is it gonna take this time for the brothers to track you down.

Being thrown into this lifestyle is not for the weak.

But eventually you get saved all the time. Just imagine Raph removing the restraints around your arms with a regretful look.

"Sorry baby, I should've protected you better. I promise to keep you safe"

Cue to the next time happening again.

1000% a teddy bear boyfriend lovelovelovelove

[rhysspiecez]

could you maybe write some HC's where the bay! tmnt are secretly obsessed with you?! Thank you!!

'They're secretly obsessed with you!'

(Bay!Tmnt x reader) Headcanons (SFW)

"Look at you, You're gorgeous. Why wouldn't anyone be obsessed with you? "

--

A/N: OMG I love this oneeee! I hope You like it, I tried my best! But, even if you dont.. You're still gonna read it like a goooooood boy ahahhahaha

Raphael˖᯽ ݁˖

Raph is way more aware of you than he is of anyone else

pretends you’re just “there” but tracks everything you do without realizing it

gets irritated when his attention keeps drifting back to you

tries to act normal… overthinks everything instead

replays conversations with you later, especially if he thinks he sounded stupid

will randomly remember something you said and get stuck on it

doesn’t understand why you affect his mood so much, just knows you do

He talks rougher than usual to you at first because he doesn’t know how to be normal

then randomly gets quieter when it’s just the two of you

Stands close without thinking, like it’s instinct

Watches your reactions more than he listens to what’s being said

if you’re focused on him, he gets slightly thrown off but hides it

teases you, but it’s softer—less bite, more… testing the waters

gets awkward in small, rare ways that no one else sees

always ends up near you, even if he didn’t plan to

glances at you mid-conversation just to see your reaction

notices changes in your mood before anyone else

remembers small details about you and brings them up casually later

adjusts what he’s doing if he thinks it’ll make things easier for you

pays attention to what you like/dislike without being told directly

if you’re not around, he feels it immediately

likes when it’s just you and him, no one else around

feels calmer when you’re near, even if he won’t say it

listens to you more than anyone else

respects your opinions way more than he lets on

if you’re upset, it affects him more than he expects

doesn’t know how to say “I like you,” so he just… shows up

you get a version of him that’s quieter, more real, less guarded

Michelangelo˚˖𓍢ִ໋❀

Mikey realizes he likes you fast and then just… never recovers

talks about you way more than he thinks he does

Everything reminds him of you somehow

His mood is very dependent on how you’re acting toward him that day

Tries to play it cool… fails immediately

overthinks your reactions but masks it with humor

genuinely doesn’t know how to tone it down

way more energetic when you’re around, like he’s trying to keep your attention

makes jokes constantly just to hear you laugh

gets distracted mid-sentence if you’re looking at him

leans into you, touches your arm, stands close without thinking

gives you his full attention like nothing else matters

will interrupt himself just to respond to you

gets a little shy sometimes when you focus on him too much (rare but REAL)

you’re the first person he looks for when something happens

if something funny happens, he turns to you immediately

if something bad happens, he still looks for you first

texting/talking to you is part of his daily routine at this point

if he hasn’t talked to you all day, it feels wrong

depends on your reactions more than he realizes

you’re basically his favorite person, NO competition!!

Donatello ₊˚⊹ ᰔ

Donnie tells himself it’s “just interest in behavior patterns” and absolutely refuses to call it a crush!

somehow knows your schedule better than you do

starts adjusting his own routine around yours without realizing it

gets distracted mid-work if you’re in the same room

replays conversations with you to analyze “tone” and “intent” (it’s just him overthinking everything)

remembers extremely specific details about you and insists it’s “for reference”

gets visibly thrown off when you act differently than usual

talks more when you’re listening, even if he doesn’t notice it himself

explains things to you in a softer, slower way than he does with others

makes small adjustments to help you without announcing it

glances at you constantly when he thinks you won’t notice

gets awkwardly quiet when you focus on him too directly

accidentally prioritizes you over his work… then gets annoyed at himself for it

stands slightly closer to you than necessary during conversations

your opinion starts influencing his decisions more than he wants to admit

if he doesn’t talk to you for a while, his focus gets worse

he checks in on you “casually” way more often than needed

feels off when you’re not around, but can’t explain why

you’ve become part of his mental checklist for the day

if you’re upset, it completely derails his productivity

he doesn’t like how much your presence affects his concentration… but doesn’t fix it

fixes things for you before you even ask

remembers your preferences better than anyone else

builds or adjusts things specifically with you in mind

pays attention to your mood shifts instantly

brings up things you mentioned in passing weeks ago

offers solutions to your problems before you finish explaining them

quietly gets proud when you rely on him for something

Leonardo✮⋆˙

(Best for last ofc)

Leo convinces himself he’s just “being responsible” when he keeps checking on you.

notices your presence immediately in any room without meaning to

becomes more disciplined around you because he’s trying to “set an example”… it backfires, he just gets tense

replays conversations with you later, analyzing what he said and if it was “appropriate”

keeps a careful distance at first, then slowly forgets that distance exists

gets slightly thrown off when you treat him casually instead of formally

speaks a little more softly when it’s just you

stands just slightly closer than he does with others (and doesn’t notice it)

watches your reactions while talking, adjusting his tone without realizing

listens very carefully to everything you say, even small comments

tries to appear calm but reacts faster to you than anyone else

gets a little more protective in his posture when you’re nearby

pauses a second too long sometimes before responding to you

your opinion quietly becomes one of the most important to him

if you’re not around, he notices the gap in his day more than he expects

he checks in on you under the excuse of “making sure everything is fine”

feels more grounded when you’re present, even if he can’t explain why

your safety and wellbeing become a constant background concern for him

he adjusts his behavior depending on how you’re feeling that day

doesn’t like how quickly his focus drifts toward you

always remembers what you tell him and brings it up later correctly

offers help before you even ask for it

positions himself where he can easily see you without making it obvious

becomes noticeably more attentive when you’re speaking

softens his expressions slightly when talking to you

trusts your judgment more than he lets on

prioritizes your comfort in small, quiet ways

"I love being a turtleeee"

[fyeah-tmnt]

they are all disastrously queer and neurodivergent with how they sit

[granddaughter-of-shaokahn]

I saw request we're open, Could you maybe try Shredder or Donnie from Tnmt (Teenage mutant Ninja Turtles)?

I will do it with great pleasure jasjsja, I love being asked or requesting (´▽`ʃ♡ƪ) First, I'm already making a Shredder headcanon. I'll mention you in it, don't worry. Another is that you must specify which version of TMNT. In this one, I'll make the TMNT Bayverse version if you don't mind. Coming soon I'll be doing Rottmnt 2012 and Mutant Mayhem.

↳ ❝ [Being Donatello Hamato's S/o] !! ❞

Summary: Being the team genius's partner isn't easy… but you wouldn't change a thing about him either.

Type: Romantic, Comedy, Fluffy, Everyday

Warning: Too much tenderness and unexpected nerdy phrases

══💞══╡°˖✧💌✧˖°╞══💞══

If he sees you touching one of his inventions without permission, he'll literally yell your name, but in less than a minute he forgives you because you did it out of curiosity and not malicious intent. — “Y/N! That's unstable, you could have—” — “Died?” — “…yes, but I still love you.”

Donnie has a secret notebook where he writes down everything you like. From your favorite color to how you prefer your coffee to the names you'd give your kids.

The notebook is full of little drawings of you with notes like “this smile is statistically perfect!”

When he sees you sad, he builds you something to cheer you up. He once made a star-shaped lamp because you said you were feeling down.

He's VERY clumsy when he tries to be romantic. He once tried to impress you with some fireworks he made himself… and almost set the roof on fire. — “It was a proof of love, not an attempted murder.”

He doesn't say it outright, but he loves it when you touch him. He gives an emotional micro-short when you stroke his cheek or his shell.

He's recorded your voice in his security database to be the main command. So, if you say "Donnie, start the system," his workshop comes to life.

He loves it when you wear his bandana or lab gloves. He finds it sexy without knowing why; he just smiles and stays silent, watching you.

If you're sleeping in his lab, he covers you with his lab coat or hoodie and turns off the main lights so you can rest. — "My precious formula needs rest."

He knows he can be distracted, so he gives you a small device that vibrates if he texts you or detects danger near you. (Yes, he basically invented a mini love beeper.)

When he gets nervous, he babbles random scientific facts. — “Did you know that the human brain can generate up to 20 watts of electricity? I mean, you literally charge my soul—” — “Donnie…” — “Yes, love?” — “You’re such an adorable nerd.”

He has over 200 photos of you stored on his flash drive, organized by “emotional state”: happy, thoughtful, funny, and “my favorite.”

He loves watching movies with you, especially science fiction, even though he yells at the screen every two minutes, “That’s not scientifically possible!”

You just give him popcorn and kiss him to shut him up.

Sometimes he stares at you while you’re working or talking, and when you ask him why, he replies, — “I’m just analyzing how you manage to be so beautiful… it’s a scientific mystery.”

When you kiss him out of the blue, he goes on a blue screen for five seconds. His brain literally shuts down.

He's not the type to get jealous easily, but if someone goes too far with you, it only takes two words in a cold voice for them to back off: — "Back off. I don't repeat orders."

Silly random fact: He once tried to cook for you and created a mutant pizza flavored with wasabi, chocolate, and blue cheese. You never ate that again.

When you sleep together, he loves to cuddle you and bury his face in your neck. He says the smell of your skin helps him tune out the world.

If you're in danger, Donnie loses his cool. He becomes silent, fast, and deadly accurate. This isn't sweet Donnie; this is protective Donnie.

He has one thing in store: he wants to teach you how to use his bo staff. He says it would be romantic to train together. (You only agree because watching him focus is so attractive.)

Final random fact: He's planning to build a smart house for the two of you. He's already designed the plans, and the front door only opens with your voice.