#Now I get to be a little insane as a treat

[wonderl3ss]

Fantasize

Pairing: pro hero!Katsuki Bakugo x fem!reader

Warnings: (not proofread) SMUT! Praise, degradation, pet names, (baby, slut) unprotected p in v, use of y/n, not exactly cheating but he breaks up w his gf for reader; homewrecker reader.

A/n: I absolutely in no way condone cheating or going after someone in a relationship; everything I write is purely fictional and for entertainment purposes only — It does not reflect any of my personal preferences. That being said, this is, once again, inspired by an Ariana Grande song.

Katsuki Bakugo was not a stranger to you, nor were you to him. Infact, you’d been decently close friends since UA. You’d never harboured any sort of romantic feelings for him back then as he was too immature for your liking. Now, however, he’s different, he’s grown.

Not just mentally, but physically too. He’s huge; 6’2 and pure muscle. He’s matured into the number 3 pro-hero. Everyone wants a piece of him, but, unfortunately only one person is lucky enough — his girlfriend.

You’re jealous of her. It should be you getting manhandled and fucked dumb by him, not her.

These feelings didn’t happen until a few weeks ago when he was on some talkshow being interviewed. He looked incredible. He was wearing this tight, black shirt that left nothing to the imagination. You could see every single dip and bump of muscle. It had your pussy throbbing.

Until the interviewer asked him about his love life and he’d confirmed he was taken. There was something about the fact he was unavailable that made you want him twice as much. No, you needed him. And you’d do whatever it took to make him yours. Whether his girlfriend knew or not, you didn’t care.

Currently, you, Mina, Eijirou, Denki, Hanta and of course, Katsuki and his girlfriend, are at some bar in the middle of town getting drinks and catching up.

You’re all a little tipsy and [un]lucky for you, the alcohol has gone straight to your pussy. It also doesn’t help that Katsuki looks insanely good. He’s not wearing anything fancy or inherently sexy, just a regular black t-shirt and some slightly baggy jeans. But, to you (and your pussy) he looks incredible.

He’s at the bar talking to Eijirou, with his girlfriend stood at his side and a beer in his hand. You’re sat at a booth with Mina, she’s chatting about something but you’re not listening. All your attention is on said blond.

Mina has no idea about your infatuation with Katsuki, but she’s bound to know after tonight. The way you’re looking at him isn’t hiding anything. She knows that look. She knows you.

“He’s taken, ya’know,” she says. This catches your attention; you know who she’s talking about.

“I know,” you simply reply. What else is there to say? She doesn’t need to know your plan, atleast, not yet.

“So why’re you looking at him like you’re a predator and he’s the prey? You’re not seriously gonna go after a taken man, are you?” She knows you can and will.

You just look at her, the expression on your face saying ‘he won’t be taken when I get him.’ Mina just shakes her head.

“Where’d this come from, anyway? This sudden want for Katsuki?” She takes a sip from her cocktail, her eyes never leaving yours.

“I don’t know,” you shrug. “But I’m gonna get what I want… I always do.” You look away, closing your eyes as you finish up the rest of your own drink.

Mina just laughs. You both know what you’re doing is wrong but neither of you care. Mina won’t say it but she never really liked Katsukis girlfriend anyway, so she couldn’t care less if you break them up.

You look back over and Katsuki and he’s on his own. You guess his girlfriend’s in the bathroom and Eijirou is talking to Denki or Hanta. You stand and nod your head toward the bar where Katsuki stands as if to say to Mina ‘I’m gonna get another drink (and my man.)’

Mina smiles and stands too, but makes her way toward whenever Eijirou is.

You get to the bar and order yourself another drink.

“Want one?” You ask Katsuki, “my treat,” you smile.

His answer is short and sweet, a simple, “sure.”

So you order him another beer; you know which one is his favourite.

“You know, I could be a lot better than her,” you’re not subtle with what you’re doing. You know what you want and you’re going to get what you want, there’s no point in beating around the bush.

At first, he’s taken aback by your words. He wasn’t expecting this from you, however, he can’t say he’s disappointed. You’re attractive, and he’s not going to deny that he’s thought about you in a sexual aspect before. He just wasn’t expecting you to have thought the same about him. Despite the fact his girlfriend is all but a few steps away, he decides to flirt back.

What she doesn’t know won’t hurt her, right?

“Oh, really?” Your drinks arrive and he takes a swig. “I don’t know… I think she’s already good enough,”

You take a swig of your own drink, it burning slightly as it goes down your throat, but it only makes the fire in you hotter.

“Guess I’ll just have to show you sometime. I can offer a lot more than she can, in more ways than one,” you smirk at him, finally making eye contact.

He just lets out an ‘mhm’ while returning the smirk. You can sense a fire in his eyes. He’s actually thinking about it.

You peer over his shoulder and see his girlfriend is making her way back over. You take this as your cue to leave and go find Mina, you give him a wink, making sure his girlfriend doesn’t see — not that you care if she does.

You spend the rest of the night talking to Denki and Hanta, occasionally looking at Katsuki only to find he’s already staring at you from over his drink.

A few weeks later, a tonne more days of flirting and you know you’re so close to getting what you want. Just one more day and it’ll be yours, you can feel it.

A little birdie told you (Denki, ever the gossip) that Katsuki and his girlfriend have been going through what can only be described as a ‘rough patch’. Supposedly, he’s not been paying her as much attention as before. He’s distracted.

Now, all you need is the confirmation that they’ve officially broken up.

And it doesn’t take long.

It’s time for one of your weekly meet-ups, and lucky for you it’s at your place this week. You’ve got Katsuki right where you want him.

Everyone has turned up already, except for him.

You’re sat around your coffee table, laughing and sharing anecdotes about your week when he finally arrives. Alone.

Eijirou, his best friend, is the first to speak up about this. It’s not any secret within your group that somethings going on between Katsuki and his significant other, but nothings actually been said out loud about it, until now.

“Hey, man! Nice’a ya’ to join us, your girl not coming?”

“Nah, we broke up,” BINGO. The one thing you’ve wanted so insanely bad has finally fallen right into your hands. He’s yours.

“Shit, I’m sorry,” Eijirou rubs the back on his neck, afraid he’s now made it awkward.

“It’s cool, don’t worry about it.” Katsuki shrugs and makes his way toward where you’re all sat, and he sits down right next to Eijirou, which also just so happens to be opposite you. You stare at eachother; you both know what’s going to happen after everyone leaves.

The night continues on and you and Katsuki have been giving eachother ‘fuck me’ eyes. You’re sure everybody’s noticed, but neither of you care.

Finally, the night comes to a close and everyone is beginning to leave. You’ve waved Denki and Hanta goodbye already and are chatting to Mina as Eijirou announces that he’s heading home. You all give him your goodbyes and now it’s just you, Katsuki and Mina left.

“Go get your man.” Mina leans in to whisper toward you. She turns away and gathers up her stuff, giving you one last wink and a smile before also leaving.

The second Katsuki hears the door shut he walks over to you, you look up at him and he speaks, “gonna show me now?” He’s referring to what you said back at the bar a month ago.

His hands find your hips and yours reach up to wrap around his neck; you’re so close you can feel his breath on your face. You smile, then waste no time in clashing your lips together.

The kiss is heated and rushed and Katsuki ends up backing you into a wall, this eliciting a small noise from the back of your throat akin to that of a moan.

His hands slide lower, down to your ass as he lifts you up. You wrap your legs around his hips and the friction between you becomes unbearable. He’s pressed so close to you that you can feel his boner growing right on your clit.

He breaks away from the kiss only for his mouth to latch onto your neck, sucking a bruise there. You moan and attempt to grind yourself down onto him. You need him inside you, now.

“Kats… bedroom,” you mutter breathlessly. You don’t have to tell him twice before he’s carrying you into your room and throwing you onto the bed, and hovering over you.

“Been thinking about this for so long,” he whispers before kissing you once again. You don’t think you’ve ever had anyone kiss you this good before.

He begins to unbuckle his belt and you sit up on your elbows to watch. The second his jeans fall onto the floor your eyes are on his boner. The thin fabric of his boxers doing nothing to hide it. He’s huge.

Then, he’s prying your legs apart and standing between them. His hands find the bottom of your shirt and usher you to take it off. You do exactly that. His own shirt follows yours right after.

“Need you so bad,” you all but moan as you look up at him, and he swears there’s lust in your eyes.

“Yeah? Need this dick so bad, huh? ‘S all yours, baby,” and with that your own jeans are joining his on the floor, leaving you both in just your underwear.

There’s no hiding the little wet spot that’s pooled in your underwear, and Katsuki notices.

“This wet for me already? I’ve not even touched you yet. Fuck,” he bites his lip and reaches round to undo your bra. His lips attach back to yours as your bra is then slid down your arms and thrown god knows where onto the floor.

His hand slides down to your clit and presses a finger to your clit, rubbing little circles onto it over your underwear, your head is thrown back and a moan leaves your throat.

Your pleasure is short-lived, though, as he removes it to grab ahold of your hips and pull you forward toward where he’s stood at the edge of the bed.

He leaves a trail of kisses down the middle of your breasts as he pulls your underwear down your thighs. The gusset sticks just a little, showcasing just how wet you are for him.

He’s honestly never been so turned on in his life; cannot believe this is what he’s been missing out on.

He steps back just an inch to begin taking off his own boxers, and you’re already missing the heat from his body.

You’re both completely naked now. Your pussy feels like it has its own heartbeat and if he doesn’t get inside you without the best few seconds, you feel you’re going to explode.

“Need you inside, Katsuki,” you plead, looking into his eyes. You’ve been waiting over a month for this, there is no way you’re waiting any longer, even if just a few seconds.

“Want me to fuck you like the slut you are, yeah?” Is all he says before he’s tapping the head of his cock on your clit. He drags it down to your entrance and gathers up your slick before beginning to push the tip in.

Your arms give way and you fall onto your back. He’s only put the tip in but you can already feel the stretch. He’s bigger than any man you’ve had before, and fuck, you cannot believe he’d been giving this to her.

You don’t have to worry about that now, because he’s right here. Right where you wanted him. And he’s going to fuck you dumb just like you’ve wished for.

You shut your eyes as you feel him push himself all the way in, you both simultaneously let out a moan. You, because he’s so big, and him, because you’re so tight.

His head finds the crook of your neck and rests there as he pulls back out, not all the way, before slamming back in.

You can feel — hear — his breaths getting deeper as he begins to thrust into you. It’s a slow pace; he’s allowing you to adjust to his size.

“Already so much better,” he mumbles into your neck, leaving a soft kiss there before lifting his head and looking at your blissed out face, “couldn’t think of anything but you for the past month. Every time I fucked her, I couldn’t help but wish it was you,”

And that’s exactly what you wanted to hear. Another moan leaves your throat while your nails are digging and scratching up and down his back.

“Katsuki, please just shut up and fuck me.” Your legs wrap around his waist, your heels pressing into his back along with your fingernails.

“Don’t worry, baby, gonna fuck this slutty lil’ pussy till you can’t walk.” He takes a finger and starts circling it on your clit, pounding into you at a pace you’re unable to keep up with.

He can feel your pussy clenching around him, can tell you’re close. His eyes leave yours as he glances down to where you’re joined together and there’s a ring around the base of his cock where his pre-cum has mixed with your juices. Fuck, he’s getting close too.

“Shit… gonna cum,” you’re just able to stutter out.

“Doing so good for me, baby. C’mon, cum on my cock,” and the praise is all you need, the switch in you flipping and you’re gushing around his cock.

His mouth meets yours for one last sloppy kiss while he fucks you though your orgasm, overstimulation already settling in.

“Where?” He asks, but you’re unsure of what exactly he’s asking. He truly has fucked you dumb and he’s not even done that much.

He can tell by the look on your face your overstimulated and confused, so he elaborates, “gonna cum… where?” And you finally understand.

“Inside! Fuck… inside, Katsuki!” One last thrust and he’s letting out a breathless groan before you feel the warmth of his cum filling you up.

He stays inside for just a moment while you both catch your breaths. A slight squelch and a moan is heard from you as he finally pulls out. He stands back and admires his handiwork, smiling at your face — your eyes are closed, mouth is hanging open and your hair is clinging to your forehead from the sweat. He thinks you’ve never looked so gorgeous.

Your eyes open and slowly meet his. You smile back at him, a blush rising to your cheeks. How is it that you’re getting flustered now?

He hovers back over you, leans down and presses a small kiss to your lips. “You’re mine, you hear me? All mine. Ain’t no way I’m letting you leave after that,” the quiet chuckle he gives after saying this is one of the most beautiful things you’ve ever heard. You’ve never been happier getting what you want.

You nod. “Yeah… yours,” too tired and fucked-out to form a proper sentence. You feel him begin to lift you from the bed and help you walk to the bathroom, probably to clean you up, but what happens after that is all a blurred memory.

You wanted him to fuck you dumb, and fuck you dumb is what he did.

Another month passes and you’ve both made it official to the others. Katsuki is now officially, yours, and you his. Mina was the first to know, of course, you had messaged her the morning after.

You’re with Katsuki in the back of a limousine. You’re wearing a fancy, low-cut, tight, red dress with a slit down one of the legs, while Katsuki is in a marching red and black suit. He looks incredible — even better than he did in that interview when you first fell for him.

The limousine comes to a stop and the door is then opening. Katsuki exists first, holding a hand out for you to grab onto as you exit right behind him. There are cameras flashing from every angle.

This isn’t the first time you’ve been out in public with Katsuki, there have been other paparazzi pictures of you, but it’s the first time you’ve been in public with the intention of letting everyone know you’re a couple.

As he walks down the carpet with you, there are questions being shouting at you both, left right and centre, but only one specific question catches your attention, “y/n! What do you have to say about the rumours of you being a homewrecker?”

“I could never do anything like that. I mean, I would, but, I’m just too nice, and too hot.” is the only thing you reply before turning your attention back to Katsuki, a smirk on your face.

You’ve got what you want now, who cares how you got it?

[hannieehaee]

hi can i req ff that “really nice guy to everyone but you” thank youu

them being really nice guy to everyone but you

content: sort of enemies to lovers implied, not angsty at all, implied repressed crush, etc.

wc: 651

a/n: i've never heard this concept before so im assuming its some sort of repressed crush type of thing(?) sorry if i got it wrong</3

masterlist

seungcheol -

he's petty and stubborn, so this game could last forever to him. he'd want to be very obvious in his niceness towards other people in front of you whilst just completely disrespecting your existence. it'd give him satisfaction when he'd see you fume at him. maybe it was something he needed to externalize to understand why it pleased him so much.

jeonghan -

god you're the biggest target to his pranks and teasing. wont leave you alone ever. he just finds so much entertainment out of making you miserable. unlike with other people where he'll prank them half the time and be a caring angel the other half, you just get a demon out of him 24/7.

joshua -

he's a cocky bastard in your presence. he's the perfect gentleman to everyone else but you never really get to see that side of him. what's worse is that he'll only ever smile at you when he know's he's getting under your skin, and it's always a smile of satisfaction.

jun -

he would not have even meant to be mean to you right off the bat but somehow things ended up like this. so now he's just kind of a dick around you whilst being his easygoing self with everyone else. you're mean in return so it kind of works out.

soonyoung -

he'd slip up sometimes, lost in staring at you in the midst of what was supposed to be some weirdly mean interaction between you. you'd probably know that he liked you beneath all the rudeness, but it'd be fun to play around with him.

wonwoo -

he'd drive you insane with how soft and sweet he is with everyone other than you. you'd feel dejected at first, but at some point you'd treat him exactly the same. this would either lead to sone amazing slowburn between you or someone being killed off the friend group. no in between.

jihoon -

it'd be easy for him to be perceived as mean by you. he didn't even have to try, he was just a little dismissive by nature anyways. he'd never actually be too outwardly mean, but he'd be able to get away with it the most.

seokmin -

it'd be obvious to everyone that he didn't mean it. he could never be mean a day of his life. he'd try very hard to make it seem like he didn't like you, but he'd snap out of it sooner or later, making amends and treating you as nicely as he did everyone else.

mingyu -

he'd be cocky as hell around you, giving you snide remarks left and right. he just loved when you'd fight back, insulting him twice as hard and even attempting to go after his gigantic physique.

minghao -

it'd bug you how obvious he'd make it. he'd give you a dirty look one second and the next he'd be hugging someone as he greeted them. it'd piss you off, but the mere reaction from you would just get him to amp it up even more.

seungkwan -

when you realized this special mean treatment was reserved for you only, a war would start between you. it'd become a battle to see who could be meanest to the other. it'd be painfully obvious to everyone else that you liked each other behind all that meanness.

vernon -

he's just so annoyingly indifferent around you, it'd drive you crazy. he's not even mean, he just ignores you .... except when you're not looking. all his friends would know the truth, but he'd keep the act up in front of you.

chan -

would be weirdly standoffish and a show off in front of you just to piss you off. knows all your pet peeves and ticks and takes advantage of that. classic example of trying to get your attention by being rude and basking in it even if its only ever to tell him he's annoying and a loser.

[saturnsideblogg]

The worst part of Andrews depression was probably that it wasn’t debilitating. And I know what you’re thinking now, that if it’s not debilitating, he’s never known true depression. But what would you prefer? To be bedridden by depression, unable to get up, unable to eat, unable to get yourself to do anything even though you have to do things…. like work and keeping promises.

People would know. Know that it’s depression and be forced to understand to some capacity. It would be concerning. It would be something, something that raised even a small amount of alarm from the most cold hearted.

Or, instead, would you prefer to work, and eat (albeit very little), and mechanically go through the motions of life with far subtler signs that anything else is going on beneath the surface? Having a deeper rooted unrelenting drive of ‘duty’, that doesn’t allow you to stop, no matter how much everything inside you screams to. Unable to switch off survival mode. No alarm, no concern, nothing would be raised by most people because most people wouldn’t even notice.

They wouldn’t really notice that Andrew is speaking less, that his eyes look more dead than usual, that he seems to pay less attention to everything, that he’s actually slower than usual. Like someone put him in a black and white movie and the film is rolling just slightly slower than everything around him.

And even if they did notice, all they would think is that Andrew is in some sort of mood, that he’s just angry, or bored, or just being Andrew.

Of course he wouldn’t want people to know that it’s depression, he wouldn’t want to be one of those bedridden people, have an obvious weakness people could exploit, and the only time he would truly succumb to such a blatant display would be when he was alone. When there was no one to see that he was wearing thin, that life weighed on him in a different way to most, that ‘joyless’ was his most energetic sober self. That he was desolate.

But sometimes, just sometimes, he idiotically wishes he was somebody else. That he could exist as simply as Aaron, Nicky, Kevin, or any of his idiot upperclassmen. There is no regret in him for what has made him this way, but there is a bone deep jealousy for everyone else that could live in a way he was never allowed to. He’d given up on being marginally understood years ago, but he was still allowed to despise everyone who hadn’t had to. Who thought his word was worth nothing, who viewed him as something less than human, something different. He didn’t mind the moniker ‘monster’, why would he care about such a thing? But being treated like an alien by anyone, including his twin brother, was something that tended to make you feel at least slightly insane.

Why did Andrew have to be so different to everyone else and then be treated like the person who doesn’t understand?

He was grey in a world full of colours and somehow that was his fault.

Yet even when his greys started to bleed into the page, darkening, becoming muddy, there was no concern, no notice.

There was nothing other than more contempt?

[unexpectedgeese]

I think everyone should learn at least one cipher. As a treat.

[shadowhaert]

missing someone bad for you

trista mateer / trista mateer / sue zhao / u.k / u.k / clementine von radics / trista mateer

[triglycercule]

nightmare viewing the murder time three as little toys but more in like a little spoiled kid kinda way. because it would be funny and if you take into the account that he was like 6 before getting corrupted and do some mental loopholes it would be even funnier. like these are his dolls (killer dust and horror) and this is their barbie dreamhouse (his castle). they all have to stay in one room because nightmare needs to keep his toys in a toy box. the toys only ever come out when he wants to play but oh damn it they keep on breaking out!! silly toys,,, and then he locks them into the room again.

nightmare serves them food with plastic tea cups and plastic plates and there is no food. there is no tea. they have to imagine the food because dolls can't literally eat. there are food containers and stuff in the house but its all just a bunch of empty boxes. horror starts tweaking out after he scavenges the kitchen and finds a cereal box and milk carton that have NOTHING in it (why keep empty boxes?????)

they have to go where he wants them to go. nightmare gets to dress them up in whatever he wants because theyre his dolls they can wear anything he wants. it gets incredibly embarrassing when the trio is forced to wear pink pretty dresses and fight like that. or they have to go around the castle doing stupid fucking roleplays and it gets weird because theyre being forced to reenact a bullying scene and nightmare's giving them the death stare if they don't get it right (is this projection. this must be some form of coping mechanism dust theorizes)

and then you know nightmare's not exactly the best toy owner so he loses a few of his dolls here and there. maybe they get destroyed when he was playing a bit too rough with them! (killer dies in battle for like the 29th time) but its okay because he can just go back on down to the store (something new) and buy. wait no. steal another doll and then put it back in his dreamhouse and BOOM he has a full set again!! so sweet so cute. his dolls don't have consciousness what are you talking about theyre begging to be let go?? that's all just your imagination. what do you mean you're asking about the several slowly dying bodies with removed arms or legs in his dungeon. oh that's just where the broken but not yet destroyed toys go dw theyre fine its humane

[becca-e-barnes]

Ngl I'd absolutely kill for a threesome with Bucky and Natasha 😍 I mean ,,, the constant shifting in power between the two of them of who is more dom of what's happening??? And the idea of being reader being the main focus of all this??

"Thats OUR good girl."

AGDJAKFLSL My little sub brain could never 😔

I don't remember the last time I wrote a lil threesome where the reader is submissive so I guess that's what we're doing today ✨

But the thought of both of them bickering over who can make you feel best while you're right in front of them is so hot. Nat thinks she understands pleasure best whereas Bucky argues that he knows what you like.

They agree that toys are out of the question because that wouldn't be fair and you're thankful for that. You hardly know how you're going to handle them competing without adding toys in.

"She's such... A good girl." Bucky groans, unclasping your bra and letting it fall to the floor while Nat kisses up your bare neck, sucking and nipping your skin.

"The best girl." Nat hums in agreement. "Our good girl." Her slender fingers pinch one of your nipples while Bucky's mouth engulfs the other and you don't remember ever being this wet before in your life.

"She's all frustrated, bless her." Nat's other hand trails up your thighs until she reaches your sex, luxuriating in the feeling of your slick arousal against her fingertips. She knows what she's doing. You can tell that even by the gentle, calculated strokes against your body. She's only aiming to tease; to get you so worked up you beg her for relief, rather than Bucky.

"Have a taste." She removes her hand, extending two fingers to Bucky who gladly removes his mouth from your breast before engulfing the fingers with his mouth.

You hear his low groan, his eyes fluttering shut and it makes you almost writhe with need.

"Now that you've had yours, it's my turn." Nat withdraws her fingers, slipping out of her dress before settling on the bed between your legs. "You have a choice, sweetheart." She purrs, kissing a path from the inside of your knee, up your thigh and back down again. "Bucky might not last very long inside you and that would be disappointing, wouldn't it? You're so warm and wet and tight, it might all be too much for him."

You don't know whether to agree or not. You don't want to risk embarrassing Buck but at the same time, you'd be very disappointed if he wasn't able to fully prove how good he can make you feel. If you only get this experience once, you need it to be the very best it can be.

"If you like, I'll help him take the edge off while I take care of you. I'll let him fuck me and get his first load out of the way so he can give you the attention you deserve." Her voice is soft and sweet, your fingers tangling in her hair hoping it'll drive her mouth where you need it most.

Bucky looks like he would protest but who in their right mind would reject an offer like that?

"Y-yes. Okay, fine." You're so desperate to be touched, you'd agree to almost anything.

"Sweetheart, when it's your turn, I'm going to ruin you. Gonna make you watch how hard Nat cums for me, just so you can see what I'm going to do to you later." Bucky's confidence makes Nat laugh from between your legs.

The strokes of her tongue are feather light to begin with, trailing slowly over your soaked folds, slurping your arousal greedily. You don't miss her low moan as Bucky presses into her but she manages to stay focused, giving your clit the attention you needed.

Taking you apart is the entire plan here. You might be their focus but they're both smart enough to know that it's easier to win when they've sabotaged their competition.

[fluffs-n-stuffs]

Pokémon said bisexual rights 🫵✨✨✨

[givemewallywestorgivemedeath]

okay weird q incoming but what ways do you think speedsters can get sick? Like to my understanding, they can’t really come down with normal virus’ like the flu, right? But they could get things like chronic migraines?

NANOBOTS!!! This is one of the best pieces of canon lore ever. I did a whole post on it but TLDR: normal human metabolisms have so much shit going on that they don't even notice nanobots in their body BUT speedsters have hyper accelerated metabolisms that are the equivalent of the straight A's overachiever in school on meth. So speedster metabolisms do notice nanobots and they attack full force, triggering all of the body's defenses and responses.

But the nanobots are metal so it obviously doesn't do anything. It just leaves the speedster lethargic, feverish, vomiting, dizzy, with a headache, sore muscles and a runny nose, ect. It's basically an allergic reaction.

Now, poisoning them can work depending on what the poison is/what the dosage is. You would need a 100% fatal poison and you would need a fairly high dose. Because speedsters heal fast and they have a hyper accelerated metabolism, so any poison that is based on toxicity (alcohol poisoning for example) would be out of their system faster than it could even take effect.

But poisons that can't be cleared out/processed by the body (take cyanide for example, it binds with the chemical receptors in your body making it physically impossible to use oxygen) wouldn't really be affected by their metabolism at all. So while the speedsters could heal the damaged tissues from these poisons fairly quickly (making it seem as though they were only slightly affected) they would ultimately need time to do so, time they would not have if it kills them first. This isn't technically what you are asking because there would be no substance that 'makes them sick', there would only be 'fine', 'not fine for like a minute and then fine again' and 'dead'. (... unless they were hooked up to a steady supply of the toxin)

Likewise, (this is getting more into theoretical territory, less canon) there might be some illnesses that would affect them? Not for long but if you got something super fucking fatal like Rabies, it might make them display mild cold symptoms for a day or something.

I don't know though. They have really fucking good immune systems. And even super fatal diseases can be fought. Take my example of Rabies, while it is commonly thought to be 100% fatal once symptoms show up there actually have been cases of people surviving it. Rabies is a very stealthy and fast disease, so the main problem with treating it is that your body's immune system isn't fast enough to stop it. People have survived by being placed in medically induced comas (slowing their bodily functions and thus the disease) for long enough that the medication can eradicate it. So for a speedster? That's gone in a minute tops. You would need an insane disease that I'm not sure even exists.

There's also like... pregnancy and menstruation. Growing pains, muscle pain from running is a BIG ONE, being dehydrated/starvation, blood loss, ect. Lots of ways to fuck with a speedster in a way they can't immediately fix.

There are also speedster specific ailments. It's basically 50/50 if a natural born speedster gets a weird highly fatal aging disease. Sometimes speedsters can be born without a kinetic energy shield which makes using their powers at all incredibly fatal to them. All speedsters will have connectivity issues at some point that can be fatal. Sometimes Time Gets Bad™ (shout out to when Barry kept chronically stealing time from people/things every time he used his powers). Sometimes they have too much energy and can't maintain human form (shout out to when Wally didn't know what the speedforce was and was accidentally cosplaying Ghost Rider). Velocity 9 is a highly addictive drug that works on speedsters and makes them display typical addiction behavior (and withdrawal). V9 can also cause a speedster to 'overdose' (burst into flames/lightning/energy). They all have the constant urge to yeet themselves into the speedforce. Ect.

[okitanoniisan]

im at the point in my rgg hyperfixation where shit i say about kiryu is like. nigh unintelligible unless you can piece together my scattered riddles and/or have access to the inside of my brain

[averlym]

hi, i see you are on hiatus, but thought at some point you might like to hear that january 28th is henry’s deathday ~ holiday anon

another one bites the dust (haha because you hoover dust)

[vampyroteuthid]

just in case anyone thought i was exaggerating about how stupid my coworkers think i am today one of them told me i could write "turbid which is like the scientific word for cloudy" on a urinalysis sticker. i have a college degree in a science

[paulnewmanlover]

about a third of the way through reading words of radiance and I'm honestly impressed with brando sando's ability to make me bounce so wildly back and forth between hating and loving each of the main characters in turn. it's absolutely maddening but honestly weirdly appealing at this point lol

[a-drama-addict]

new art program, same ole oc bullshit

[unexpectedbrickattack]

.

[inhumanfuckingdogman]

If i had to pick (and lbr you do) between either roman or tomgreg being canonically gay and explored in the series id pick roman 100%. Tomgreg going canon would set gay rights back by like 40 years