## Preface

move my heart like a metronome
Posted originally on the Archive of Our Own at http://archiveofourown.org/works/49741774.

Rating:
  Explicit
Archive Warning:
  No Archive Warnings Apply
Category:
  M/M
Fandom:
  僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
Relationship:
  Bakugou Katsuki/Todoroki Shouto
Characters:
  Todoroki Shouto, Bakugou Katsuki
Additional Tags:
  Alternate Universe - Fantasy, Alternate Universe - Soulmates, Japanese Mythology & Folklore, s, Smut, Nekomata Todoroki Shouto, Wolf yokai Bakugo Katsuki, Barbed Penis, Happy Ending
Language:
  English
Series:
  Part 2 of BNHA Yokai Verse
Stats:
  Published: 2023-08-30 Words: 2,389 Chapters: 1/1

# move my heart like a metronome

by SoenNoAme (TsukkiNoNeko)

Summary

> Shouto was bored.

> Scratch that, he’s always bored.

> He has other yokai flocking him, usually, but today, he has no one. Not even his father is chasing his tail today.

> Or,

> yokai time! :D

Notes

> Here's my fic for BNHA Monsterlover bang!

> My artist's piece here!

## move my heart like a metronome

Shouto was bored.

Scratch that, he’s always bored.

He has other yokai flocking him, usually, but today, he has no one. Not even his father is chasing his tail today.

“I just…” Shouto whispers to himself when he hears a small sound. He flicks his ears towards the direction of the sound. “Who goes there?”

“Who are you ?” the newcomer growls at him.

It’s kind of cute, Shouto figures, to see an ookami where a hyou resides.

“Ah, I hope you’re just passing by, ko ookami ,” Shouto can’t be really bothered with a pup.

“Who ya callin’ ko ookami ?” the ookami growls again. “I’m—”

Shouto smells it then.

The scent of blood.

“You’re hurt,” Shouto teleports right next to the ookami . “What were you doing?”

“Humans still hunt wildlives, didja know that?” the ookami snarls. “I was too young and stupid to go near them.”

Now that he thinks about it, the ookami smells quite young. Far younger than Shouto’s couple centuries of existence.

“What’s your name, ookami ?” Shouto demands in a roared voice, which isn’t intentional.

“… Katsuki,” the ookami , Katsuki, replies. “And you?”

“Call me Shouto,” Shouto replies with a thin smile, the tips of his tail twitching. “Let me take you back to my den…”

Back at his den, Shouto transforms back into his base form, which Katsuki copies. Katsuki is a rare white-furred wolf, but…

“Your pelt,” Katsuki talks to Shouto telepathically. “You got coats of both—”

“I’m aware,” Shouto groans.

In his base form, it’s inevitable to hide that Shouto got fur coats from both his regular hyou and yuki hyou parents. Because he was a misfit, he got unusual colouring.

From the time he was a mere kit, he was hunted by humans for his spectacular pelt colours. Something about being worth a lot.

As he grew older, Shouto grew to resent humans and fend after himself. He became powerful enough to fend off humans who came near his territory.

“I thought all hyou went extinct in Japan,” Katsuki muses.

“You thought wrong,” Shouto snorts. “How deep is your wound?”

“‘Tis just a gunshot, fuck off,” Katsuki snarls.

“And yet you seek refuge in my den,” Katsuki points out. “What, you really think you’re all-powerful?”

“I’m stronger than you,” Katsuki snaps.

“In base form, yes, you are more powerful than me,” Shouto hums. “But when it comes to magick, I can easily overpower you, ko ookami .”

Katsuki stands up from where he is, but he collapses as soon as he does.

“Poison,” Shouto comments. “You might die if you don’t get enough yokai energy absorbed into your body, Katsuki.”

“What, you’re going to help me?” Katsuki howls from the pain.

“None of that howling bullshit,” Shouto sighs. “You might attract some hunters.”

“I’m in pain, fuck you,” Katsuki yaps.

“I guess this is why I was warned about the ookami as a kit…” Shouto sighs before stalking towards the injured ookami .

Before Katsuki can say or do anything, Shouto touches the other’s wound with his nose and heals him.

“Why’d you do that?”

When Shouto turns around, he sees that Katsuki is in his humanoid form again.

“Because,” Shouto returns to his humanoid form as well. “I don’t see a point in seeing you die.”

“I can hurt you,” Katsuki snarls.

“You’re all bark but no bite,” Shouto rolls his eyes. “Rest, Katsuki.”

///

When Shouto opens his eyes again, he’s surprised to see that Katsuki is still here. The other actually hunted a doe for the two of them.

“Breakfast?” Shouto yawns and returns to his base form.

“What does it look like?” the white ookami ’s tail twitches. “I thought I could… pay back what I owe ya.”

“It was just a simple healing,” Shouto shrugs as he nibbles on his share. “Nothing big, nothing small.”

Katsuki looks like he wants to say something, but he holds his tongue.

“Thanks for the meal,” Shouto mumbles in his humanoid form. “So…”

“I don’t have a home,” Katsuki confesses. “That’s why I… came here.”

“A wandering ookami ,” Shouto smirks. “Now that’s new.”

“Is it now,” Katski’s blood-red eyes bore into Shouto’s.

“It’s precisely so,” Shouto gazes back into Katsuki’s eyes.

Sometimes, Shouto remembers his Mother telling him when he was a mere kit . Two or more creatures are drawn towards each other like gravity .

I thought she was spewing nonsense, Shouto smiles to himself. Looks like I was wrong .

“Whatcha smiling about, koneko ?” Katsuki tilts his head to the side.

“Oh, nothing…” Shouto shakes his head. “Let’s go for a walk, you and I.”

Surprisingly, Katsuki follows Shouto to the creek near his den. They walk in their base forms, free from worries about the world.

“Your tail is too close to mine,” Katsuki snarls.

“Sorry, but you’re the one wagging yours like a puppy,” Shouto refutes.

“I am not a puppy,” Katsuki barks.

Shouto rolls his eyes.

Once they arrive at their destination, Shouto takes a few sips of water from the creek. Katsuki watches him doing that.

“I didn’t poison it,” Shouto shifts to his humanoid form.

“Your ears are cute,” is all Katsuki says before lapping at the tips of his leopard ears.

Shouto was not expecting that. Not from anyone, not from Katsuki .

“Why’d you do that?” Shouto asks the ookami .

“You feel it too, don’t you?” Katsuki hums. “This… force between us.”

“We’re both yokai , you gotta be a bit more specific than that,” Shouto shakes his head.

“You feel it, I know you do,” Katsuki hisses.

When Katsuki’s tongue caresses the underside of Shouto’s leopard ears, the hyou lets out a low purr.

“That was unintentional!” Shouto squeals.

“I think you like having your ears touched, Shouto,” Katsuki muses.

And he does, Shouto likes it because it’s Katsuki . If it were one of his siblings, he’d have clawed their ears off.

“Tell me, Shouto…” Katsuki steps closer to Shouto. “Do you believe in fated mates?”

“I’ve heard about it,” Shouto replies truthfully. “Why?”

I’m such an idiot, Shouto groans. There’s only one reason why he’d ask me that!

“You know why,” Katsuki laughs not unkindly. “You know it in your heart.”

Before Shouto can see it, Katsuki is right in front of him. Their lips are a kiss’ breadth apart, and then the foreign sensation of having Katsuki’s lips against his invades him.

Katsuki’s lips are softer than the softest down he’s felt in his many, many years of life, and his arms are so warm, warmer than taking a nap under the summer midday sunlight.

“Katsuki…” Shouto starts, but Katsuki’s lips claim him again.

It’s hard to think straight when Katsuki is kissing him like a, well, wolf. It’s like Katsuki is a famished wolf and Shouto is the willing feast.

“Katsuki, wait!” Shouto slaps his tail between their faces. “You aren’t thinking—”

“I am thinking!” Katsuki stage-whispers. “I knew there’s a good reason why I was brought here!”

“You think I’m your… fated,” Shouto breathes.

“Yeah,” Katsuki doesn’t bother hiding the smirk on his face.

Shouto needs some time to take all of this in. He didn’t believe in fated mates himself ever since how his parents turned out. How his Mother despises his Father so much for what happened.

And Shouto can’t blame his Mother. Father did wrong her.

“I think you’re mistaken,” Shouto takes a step back.

“What exactly did I mistake?” Katsuki snarls, the sound rumbling low.

“This… fated mates thing,” Shouto mutters. “I’m not an expert with this kind of thing, but I can assure you, we are not fated .”

Katsuki blinks once, twice, then backs away.

“Alri’,” Katsuk raises his hands in surrender. “I get it.”

“What do you get?” Shouto growls. “You don’t know a damn thing about me!”

“That’s—”

Shouto lunges at the other without any preamble. He just bowls the ookami over and digs his claws into the other’s shoulders.

“Is the big hyou going to eat me?” Katsuki grins.

“I’m not going to eat you,” Shouto sighs. “If you’re like any other pup, you probably taste bland.”

“Ouch,” Katsuki rolls his eyes. “Calling me a pup, huh?”

“You are a pup though, aren’t you?” Shouto raises an eyebrow. “You’re not even a hundred years old.”

“Guilty as charged,” Katsuki shrugs, or tries his best to shrug while pinned under Shouto.

“Why do you…”

Shouto doesn’t know what he was about to say.

Make me feel ? Shouto tries to think of something appropriate to describe his inner turmoil. I truly do not know what Katsuki does to me .

“It’s okay,” Katsuki raises a hand, as though in an attempt to cup Shouto’s cheek. “I got you.”

Despite their current situation, Shouto finds himself leaning into Katsuki’s touch. He finds it relaxing to be in Katsuki’s embrace.

“Better now?” Katsuki asks once Shouto rolls off of him.

“I… I’m sorry,” Shouto apologises. “I didn’t mean to act so violently and out of hand.”

“Well,” Katsuki smirks. “If you prefer to be on top , I don’t mind it.”

Shouto can feel the heat rushing to his cheeks from hearing that. He knows what Katsuki meant by that.

“I’m a yokai in his prime, Shouto, what did you expect?” Katsuki rolls his eyes.

“Not say stuff like that, mayhaps,” Shouto grouses.

“There, there,” Katsuki presses a chaste kiss to Shouto’s nose. “Have you… are you a virgin?”

“Does that matter to us being fated?” Shouto growls, his lips drawn back into a snarl.

“No, no, no it does not,” Katsuki chuckles. “I was saving myself for my fated anyway.”

“Oh…”

The realisation hits Shouto like a bunch of boulders.

“That means…”

Shouto doesn’t know how to react to this. He truly has never been the type to act first, think later.

But here he is, leaning forward to touch Katsuki’s nose with his in an affectionate gesture. He starts purring, their lips almost touching.

“Shouto…” Katsuki rasps before claiming Shouto’s lips.

It’s all instinctual. Shouto kisses Katsuki with ferocity he never knew he possessed. He presses the other’s back against the tree as they continue to kiss.

“This is too many layers of clothes,” Katsuki hums against Shouto’s lips.

“You’d be correct,” Shouto purrs before using his yokai magick to dissolve their clothes. “Better?”

“Much better,” Katsuki lets out a low rumble of agreement.

Shouto ruts his cock against Katsuki’s, the sensation foreign yet so right. He can feel himself getting more aroused, unlocking more feline features.

“Wait, are those—”

Shouto folds his leopard ears against his skull.

“Don’t be shy,” Katsuki lets out a low rumbling laughter. “Your cock has… barbs .”

“I cannot hide this when I get aroused,” Shouto mumbles.

“It’s okay,” Katsuki whispers low in Shouto’s ear. “I can’t wait to have your dick inside me, Shou-chan. ”

That does Shouto in.

Shouto tackles Katsuki onto the ground and kisses him deeply. He uses his yokai magick to lubricate the other’s hole as he prods his fingertips against the rim. He pushes two of his fingers inside, growling possessively from the tightness.

“That’s right,” Katsuki muses. “I’m all yours.”

Shouto knows better than to go against his primal instincts. And all of them are telling him that he has to take Katsuki .

“Katsuki…” Shouto growls against the other’s lips.

“I’m not scared of you,” Katsuki whispers. “I’m just like you.”

The reassurance works like magick. Shouto starts thrusting his fingers in and out of Katsuki’s inner walls, letting his primal instincts guide him. He adds the third in and curls them, purring loudly when Katsuki starts to moan without abandon.

“That’s it,” Shouto purrs louder. “Make those sounds, but only for me .”

“You’re the only one who can see me like this,” Katsuki rasps.

One more slam of the fingers and Katsuki’s back goes taut before releasing between their bodies. Shouto pulls his fingers out and starts lapping at the cum.

“That tickles,” Katsuki giggles.

“Like I said,” Shouto hums. “The more I’m aroused, the more feline I become. I suppose my tongue’s got a cat’s texture now…”

“It’s kind of sexy,” Katsuki smirks.

Shouto tilts his head to the side before lowering his head to lap at Katsuki’s hole. His tongue delves in easily, and he maps out the inside with his tongue as he tastes his fated mate .

Fated mate … the term sounds nice to him.

Every sense Shouto possesses is telling him that Katsuki is his fated. And he cannot deny that any longer.

Katsuki is his and he is Katsuki’s.

“Tsukki…” the nickname rolls off of Shouto’s tongue before he can help himself.

“‘Tsukki’, huh?” Katsuki laughs. “That’s a first.”

“If you don’t like it—”

“I like it,” Katsuki muses.

Shouto pulls back completely to look at Katsuki. His mate looks totally fucked , as the saying goes, and he loves it.

“C’mon,” Katsuki takes Shouto’s hand and licks it between each finger. “Fuck me like you mean it.”

Shouto grasps the base of his cock and positions himself at Katsuki’s hole before slowly pushing in. It’s an odd feeling, to have someone’s flesh around his cock, and yet it feels so good and right .

“Fuck, you feel better than my fingers,” Katsuki slurs. “Your dick—the barbs—fuck.”

“You like the pain, huh?” Shouto smirks. “The barbs exist to make sure my dick stays in as my cum fills you up. Do you want me to breed you that badly, Tsukki?”

“Fuck, give me your all , Shou- chan .”

Shouto starts moving. He can feel Katsuki’s inner walls squeeze around him as he moves, and Katsuki comes before him.

“You came so quickly,” Shouto realises. “You have a thing for pain.”

“Not my fault you feel so good inside me,” Katsuki whines.

“It’s okay,” Shouto purrs. “I can make you come again.”

And he keeps his promise. When Shouto releases inside Katsuki, the other comes as well.

“Well,” Katsuki growls when Shouto topples on top of him. “Get off of me.”

“Just let me enjoy this moment,” Shouto purrs.

Katsuki lets out a reluctant sound.

“Wanna go again?” Shouto whispers.

“Fuck, you know me so well already,” Katsuki chuckles.

“I’ve heard of how insatiable wolves are,” Shouto hums. “I want to be a good mate to you.”

“‘Mate’, huh?”

Shouto kisses his fated mate to shut him up.

Even when the night changes, it won’t ever change Katsuki and Shouto. Their future has just unfurled, after all.

## Afterword

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