Vanillady

synopsis: as head of the mothman study you’ve devoted countless nights to observing your subject from behind the glass. you liked to think those many months spent together contributed to a sense of camaraderie, but time is merely a cradle gently lulling you into false security— and shouta is nothing if not patient.

tags: NSFT, AFAB reader (mention of ovulating), monsters + cryptids au, mothman aizawa, implied monster hunting, captivity, cryptozoologist reader, possessiveness, dubcon to eventual enthusiastic consent, oblivious reader, monsterfucking, mating behaviour, breeding, mentions of size difference (he is 7ft; called ‘little human’ +‘little flame’), vaginal oral sex + tongue fucking (reader receiving), multiple orgasms, non-human genitalia, oviposition (reader receiving; but no belly bulging), unprotected vaginal sex, *slaps roof* you can fit so much plot in this porn!!

wc: 7k+

Tucked away into the seam between Shizuoka and Musutafu is the UA Cryptobiology research centre. In the eyes of the public it was an extension of the nearby UA University and largely harmless. Cryptids kept there are not advertised, atleast, not the living ones.

The building is huge. An architectural giant, and a stain on the natural landscape. You’ve worked there for years yet still find yourself struck by just how foreboding it looks. Head ducked, you slip past the thin crowd protesting by the security gate, staff card hidden in the sleeve of your shirt.

While they are few in number their voices are loud and accusing. You flinch at the vitriol as you try to reach the scanner. There was a small earthquake in a nearby prefecture a few days ago which was the likeliest reason they had gathered here.

On days like this you couldn’t help the thought that no amount of scientific research would wipe away the countrywide consensus on cryptids. Very early on in your career you came to understand why your superiors lied about the live subjects. If these people knew the truth they could probably birth a calamity all of their own.

Unfortunately it is not only the monstrous who are a target. You lock eyes with a guard standing by the gates and slip your keycard into the shallow of your palm. Nodding in acknowledgement, he places the whistle hung around his neck between his lips and the moment you swipe in he blows, hard.

The gate clicks and unlocks with a short beep that is drowned out by the noise. You walk through and quickly push it closed behind you. Thank you, you mouth over to him, scurrying across the lot toward the main doors. He offers a flippant wave in return.

You enter the mouth of the lobby. It is a wide dome shaped room with high ceilings that houses most of the lecture rooms, and acts as a junction to other parts of the facility. Looking up, you can see each floor twisting into a spiral.

Centred is the reception desk; large and circular to make room for five staff members to be seated at any given time. Yamada is there today, dressed with his shirt cuffs pushed to the elbow, waist length hair braided up into a ponytail. He leans dangerously far back in his chair and twiddles a pen between his fingers. Your unease falls away at the familiar sight.

“Yamada,” you intone sternly. A grin pulls at your lips when he startles. The wheels on his office chair squeak as he rights himself. Wide sheepish eyes land on you and narrow in disbelief.

“Don’t do that,” he pouts, dragging himself closer to the desk, casting another nervous glance toward his coworker. “Bully! I could’ve broken my neck”.

“Then you would’ve thanked me for the two months paid sick leave”.

Yamada smirks, peering at you above his yellow tinted lenses “…Touché”.

You rest both arms on the countertop and lean over, holding a hand out to receive the sign in sheet. “You have a good weekend?” you ask, falling back into idle pleasantries while you skim over the names already on the register. Hatsume Mei. Huh, you think. She’s early.

“Kan and Kayama dragged me out drinking,” Yamada admits tiredly, massaging two fingers to his temples and closing his eyes, opening again to glare at your huff of laughter. “Sure love laughing at my misfortune, don’t’cha? I think you’re spending too much time with those ghouls”.

Signing your name in the next blank row, you give a brief glance at the watch on Yamada’s wrist to mark the time. “Comes with the territory,” you murmur, amused by the whine in his voice, setting the pen and register down on his desk with some finality. “Seen Mei today? She signed in already”.

“You bet. That girl is hard to miss,” he slides the sheets toward his front. “Speaking of…” you turn at the amused hum. His pen is pointed left like the needle of a compass leading directly to a familiar figure. Hatsume is clutching her clipboard with a tenuous grip as she scurries through the lobby, pink hair bouncing on her shoulders.

Her gaze finds you and she perks up. You lift a hand to return a wave as she beckons you frantically. It’s not entirely uncharacteristic of her. Hatsume was the rare type— she loved this job. Any small change or news could garner this reaction from her.

The excitable exclamation of your name draws the attention of the people around you, though the intern remains entirely unperturbed, almost tripping over her feet to get to you. “Mei,” you smile, instinctively stepping forward with arms held open in case she stumbles. “What’s all the noise about? Did something happen?”

“Food!” she pants heavily, grasping your forearm for balance. Her eyes are wide and beseeching as if the word alone was enough to explain her enthusiasm. It doesn’t.

Slow, you repeated, “…Food?”

The band keeping her hair tied back loosens while she nods. “It’s the mothman. He’s not eating!”

“He’s not…” you blink. “Oh!” The realisation trickles in, and you find yourself gripping onto Hatsume’s arms with bruising pressure as it washes over you. Your cheeks ache and she mirrors your grin.

Yamada clears his throat, interrupting before you have the chance to speak. “What’s so great about that?” he asks. “Wouldn't that be a sign that he’s sick or something?”

“No,” you breathe. Energy buzzes lightning-quick under your skin. Restless, you begin to shake Hatsume where she stands, and the two of you laugh in astonishment. “It means he’s hoarding!”

“Hoarding?”

“Mothman cryptids will take food back to their nests for their partners but,” the burst of joy dwindles, then. You worry at your bottom lip. “But… previous observations show that this behaviour should come after they’ve met a potential mate”.

“You think we should be worried?”

“I think it’s unusual”.

Hatsume doesn’t wilt. She shrugs your doubts off like water to a duck’s back, bouncing on the balls of her feet and handing over the clipboard. As always, the notes are verbose but organised. Detailed down to the very last time stamp.

There, written in pen, it states that at 11:58 the mothman was seen hovering by the food hatch. It clarified that there were no signs of aggression or posturing. Shouta was simply waiting. Shouta never waits. At 12:00 his usual weekly meal was given and instead of consuming it immediately as he normally would, Shouta gathered the food to his chest and took flight.

You’re rushing off toward the cryptid wing before Hizashi can press any further. Hatsume is at your heel, her quick light-footed steps echoing through the corridors.

The mothman enclosure is immense. Space is required— most cryptids can grow up to seven feet or above, and their wings even taller. Separated from your observation deck by a thick, bulbous glass window, you needed to crane your head just to catch a glimpse of the ceiling, which remained mostly covered by a canopy.

Flora covers the entirety of the forest floor. The foliage is so dense that sometimes seeing further is impossible, which in turn makes your job that much harder; but it’s worth it, for the sake of Shouta’s comfort. Unlike your predecessors, you strongly advocated for him. You viewed him as an individual, another sentient being with autonomy, and thought building a good foundation of trust could only lead to better data overall.

The facility is vastly different to the outside world. Blacked out nest boxes were placed around the area, hidden away for him to choose from however he pleased, as well as broad net columns where he can rest. Your team was instructed to begin adjusting the seasons months ago. Gradually, the temperature was changed to mimic fall. The fauna acclimated, dousing the otherwise dark and dreary forest in a warm colour palette.

Tawny leaves perched loosely on branches like a flock of goldfinches. Camouflaged behind them are two red dots emitting an unblinking glow. It is very unlike him to be this close to the deck so early in the evening. Waiting for more food, maybe. You note that thought down. You see his eyes follow the movement of your pen and smile.

Mothman cryptids are bipedal winged humanoids. They have always been notoriously aloof and difficult to study. Catching them outright was nigh impossible. They’re a highly intelligent species, and very sensitive to their surroundings. Your best bet was to inflict injury first and capture later when an infection set in.

Shouta was different from the start. So unlike his kin that you sometimes wondered if the research collated about him was permissible. He had been wounded badly by nearby collectors and managed to escape, but rather than relocate, he entered the facility of his own volition. You’d heard the stories. An eldritch being prying open the doors, thick steel bending like paper, the employees paralysed with fear, rendered unable to do anything except kneel under the intense pressure of his glare.

They had been so frightened that the shivering malachite bundle in his arms almost went amiss. A Peryton fawn matted with blood. Director Yagi supposedly spit blood of his own when he noticed.

Shouta never left after that.

Everyone figured the rumours were exaggerated. A mothman wouldn’t surrender itself for the sake of another, not even it’s own kind. That is the universal truth— all cryptids are incapable of empathy. Their sole purpose is to serve as the herald of death, and death bringers did not save life. They took it.

While you knew that to be ostensibly untrue it will never matter. Monster hunting was a tradition practiced for millennia. Accepting that they might be capable of emotion would cast doubt upon such practices. More than anything humanity needed justification for their wrong doings; condemning something as monstrous only renders such violence as heroic.

You, however, had a fascination with them since you were a child. Those unanswered questions and curiosities are what led you to cryptozoology, and ultimately, into cryptid behavioural research. Having Shouta’s care handed over to you was a dream come true.

Shouta was averse to people and made that known; keepers could be found petrified by the feeding hatch, trembling in place for hours if they weren’t careful. Which is why your superiors were greatly pleased by his reaction to you.

You couldn’t confidently say he liked you— could a mothman like anyone? But the cryptid was, at the very least, intrigued by his new handler.

Within the first meeting you recorded vocalisations that were previously undiscovered. Soft chittering and clicks, surprisingly pleasing to the ear; it had a hypnotic quality to it that could almost lull you to sleep. The common denominator was you— rather, Shouta only ever made those sounds when you were visibly anxious, and you often toyed with the notion that he was attempting to soothe you.

You tried not to indulge in such hypotheses as not to cloud your judgment. Humans had a bad habit of anthropomorphising the things they cared about. Countless cynics argued that animals do not love, they simply form attachments to those that provide for them. Shouta may only treat you better because you are the first human to show him sincere respect but that didn’t matter.

Whether your place in his life was just that of a nuisance or not, you cared for him and his wellbeing all the same. That’s what made this so invigorating— not only answers to questions that plagued your field for centuries, but the real possibility that your subject might finally have true companionship.

Your mouth twists as your thoughts drift, imagining the smell of decay percolating in one of his nest boxes now that he was hoarding. Shouta could eat anything within reason if he needed to, but his preferred diet was on the bitter side. Rotted fruits and the like which had a more acidic, sour taste to it, though he could be partial to dry pantry food in the hotter months.

Mothman have been known to feast on flesh, too, in desperate times. Though it is rare for them to acquire the taste for human meat; too mild and too rubbery.

If he truly is readying for a mate then he would soon need more food, materials and bedding. The foliage worked as a foundation but you’re aware mothman cryptids liked to weave silk or cashmere into the structure for the young to cling to and eat.

That gives you pause. Your grimace curls into a wide, exuberant grin, that you immediately shield behind the clipboard. We could end up with babies this year, you think. The first to ever be bred in captivity— a near impossible feat.

Shouta’s antennae are fluttering. Their movements fracture the stillness of the canopy and make known his position. You stare long enough for the dark blob amongst the trees to sharpen into a solid silhouette.

A mothman has a wingspan of around thirteen feet. These measurements aren’t entirely accurate, because Shouta refused to allow anyone to touch them, but the sheer size was obvious at a distance even where they remained tucked to his spine, cocooning him in darkness.

They are covered in loose tiny hairs acting as scales for insulation, while creating intricate, iridescent patterns along the inner forewings that can only be seen in moonlight when open— a gift saved in hopes of wooing a mate. Maybe you’d finally get a glimpse this year.

“Hey big guy,” you call out. Your voice jostles his wings and beckons him forward. Shouta balances himself on a thick cedar branch directly across from the observation deck, a rare sight. He is magnificent in the artificial daylight.

Hatsume releases an awed breath behind you. “Gah, he’s always so responsive to you! I’m jealous!”

Shouta barely acknowledges her presence. His attention is steadfast, pinpointed to your every move; unblinking, lest you disappear from vision. “Don’t take it personally. He’s just known me longer, is all,” you demurred, turning to her with a reassuring smile.

But she is seeing beyond you. The hair on the nape of your neck prickles and suddenly a sinistrous shadow stretches across the deck. Mei flinches back reflexively and you daren’t look back. What was ephemeral fear in her features blossoms into wonderment.

Then, a tapping sound that echoes in your chest. It is careful and somehow that makes it all the more daunting. Brushing off the unease, you pivot on your heel, coming face to face with Shouta. Both wings have hunched forward to create a cocoon of darkness, his pale face barely visible.

Another tap, accompanied by a smooth rumble. His large hand is pressed up against the glass. You step closer and his wingspan widens just a fraction. The light reflects in his eyes. He is right in front of you, so contrivedly real-looking that it feels like it must be fake.

Call it curiosity, or stupidity, or an amalgamation of the two. You outstretch your arm. The pane feels cold where your body presumes warmth. You align your palm with his and it swallows yours, fingers splayed open, still unable to reach the width of his hand.

“Hi there…” you exhale, having to crane your head to hold his gaze. Shouta’s jaw shifts as he clicks his teeth and you are reminded just how impressive a mothman cryptid’s hearing is. “You’re acting all out of sorts, huh. Want more food for the nest, right?”

Dark talons leave marks on the thick glass, hairline fractures stemming from point of impact. His gaze darkens. Hatsume gasps when he shakes his head and you can’t blame her. Cryptids rarely communicated directly with handlers.

“No?” you repeat, brows pinched into a frown. Then, to yourself, “Nesting materials, then? Already? But it can’t be, surely”.

The choice is a difficult one. Every potential mate your team introduced Shouta to throughout the years has been adamantly rejected. There was never an effort to impress or prove himself. He either flat out ignored them or attempted to kill them. You want to enable his new behaviours— to encourage it, even — but there was no mate yet.

Pseudocyesis comes to mind. Though this situation is far different, you wondered whether something in Shouta’s environment had triggered these instincts.

The rich baritone in his purr vibrates against your hand. His eyes blink slow and beseeching, full of apparent hunger, emitting that dewy red glow. Distantly, you register the dull scratch of pencil to paper. Rambling whispers fall from Hatsume’s mouth as she writes, documenting everything the way you taught her to.

“I think,” you begin, tongue heavy in your mouth. Your throat feels dry and the implication behind your next words stings. “I think he wants me to go inside his enclosure”.

A sane person would immediately put their foot down and tell you no. Director Yagi himself would try to talk you down. However, Hatsume Mei is a far cry from sane. She barely considers her own safety, let alone yours.

“What for?” she chimes impatiently. “I noticed he has been keeping an eye out for a specific person all morning— it must’ve been you. Do you think he could really be sick like Yamada said? Since he’s humanoid we can test if our medicines work on him!”

“Mei,” you interrupt, your voice cutting through her exuberance. She shrinks somewhat and you feel bad for being so sharp with her. “No, I’m not sure if he’s sick. And no, our medication only works to an extent. The dose needs to be dangerously high and cryptids burn through it faster than it can be replaced”.

Shouta observes the interaction. The tension in his wings looks ready to snap, and the feathery fingers of his antennae have started to shiver. You take in the sight of your overlapped hands once more and step away, clenching it into a fist at your hip.

“Anyone who goes into a cryptid’s den doesn’t come out,” Hatsume comments, tone uncharacteristically somber.

“I trust him,” you reassured, leveling the mothman with a contemplative stare. He ducks into the fluffy plumage around his neck and glares. “Mostly”.

Hatsume snickers. The weight in your chest lifts and you smile at her. She’s still young. Too young to bear any responsibility for what might happen.

“Something is telling me I have to go in there. It’ll keep me up at night if I don’t,” you continue, adding emphasis with a pointed finger. “This was my idea and mine alone. Do not send anyone in after me. Capiche?”

She gives a mock salute, “Yes boss!”

Each wing with a cryptid enclosure has a staircase leading from the observation deck to a feeding room. You descend the stairs, too aware of Shouta’s stare, which followed until you were out of sight.

The room is dull. Devoid of natural light, furnished only by three large chest freezers and a closet full of linens. There is a hatch the size of a shoebox that can be pulled open to safely deposit food through, and adjacent is a vault door reinforced with steel and concrete.

You open the closet and parse through the fabrics. Admittedly a long shot as far as ‘I come in peace’ gestures go, but the only thing you can think might help. Silk slides petal-soft between your fingers and you tuck it under your arm, joined by another cashmere blanket, smooth and noticeably light.

The vault door requires both a code and a staff card. You input the code and swipe your card. The affirmative beep pierces through your equilibrium. Shouta is not harmless. But you are, and you’re hoping he knows that.

A loud click echoes into the feeding room. You grasp the handle and take one last steely inhale before heaving, struggling with the incredible weight. You curse the door as it groans on its hinges, alerting everything nearby of your arrival.

Mothman feast on anything. Vegetation and flesh, fresh or rotted, but legend always spoke of their hunger for misery. They coveted disaster and fed on it, babe to breast, and somehow grew hungrier the more they swallowed.

You step into the enclosure. The door shuts with a loud foreboding slam and locks automatically.

Shouta does harm to those who would harm him. He feasts on fruit. On cereal and rice. You’d watched him suck through ten packets of coffee jelly, but never misery. If anyone were to ask you, you would tell them that Shouta conjured the very opposite of misery.

You remind yourself of that repeatedly until your thoughts coalesce into white noise. The earth is soft beneath your boots. Something darts through the treeline, gone in a blink, and you feel the hair on your arms stand on end.

Easing into the surroundings, you cautiously call out to him, “…Shouta? You here, big guy?”

A low hum resonates throughout the trees. You feel it more than you hear it, almost like a caress. It coaxes a familiar warm feeling into the pit of your stomach, willing all tension from your muscles until the blankets pinned to your side unfold, falling onto the ground.

A coronal mist has set in, orchestrated by a chattering sound you know well. Your clothes cling uncomfortably to your skin. It’s harder to breathe now. Shaking, you try to advance. Your body is quickly paralysed by the innate urge to flee.

Shouta’s presence echoes throughout the brush and sinks it’s claws into you— throbs under your skin in time with your heart. But if you ran, would that make his blood sing? Would he interpret it as a challenge to prove his worth, or a rejection for which to kill you?

The air is temperate. That perfect balance between cool and humid. Lush oranges and yellows branch out into every corner. Light bleeds through the thinning canopy, the ground dappled with sunspots. This isn’t such a terrible place to die.

You don’t hear or see him. Like before, you feel him first. Fear washes over you and steals your breath. Shouta is at your back, shaping himself to your body in a way that boasts how large he is in comparison. You stay stockstill while he touches you, nosing gently at your throat.

Finding your voice, you croak his name. An eldritch purr shudders through him and he grasps at your hips, pulling them back against him. You exhale at the obvious press of his cock to your back. Those soft chitters you had come to love drown out the panic that follows your realisation.

You were the intended mate.

Death stands behind you, arms cinched around your middle, mouthing along the nape of your neck like he loves you. The line between instinct and desire is deceptively thin. You wonder if Shouta knows the difference, or if he equates love with the heat of your blood spilling into his mouth, seams undone by the touch of his lips.

Your legs collapse beneath you, hitting the floor. A grubby applause from the dirt dances around your knees. Shouta accepts your dead weight as though it were nothing, his wings enveloping you both in an abrupt darkness.

Minuscule scales shimmer and reflect the glaring bioluminescence radiating from his eyes. Before you is a sky soaked crimson and blood spattered stars. “Is this…” you start, voice caught in your throat. It should be harrowing. People would call it a depiction of hell. You call it beautiful.

Shouta tucks his nose into your jugular with a warm hum and you feel sharp teeth protruding beneath his lips. Neck ruffle tickles soft against your skin, keeping you tight to his torso, enough that you think he could consume you whole. He’s pleased. You can tell.

Laughter bubbles up in your chest. It’s as if you are a teenager again, sneaking out with someone to see a clear starry night. The moment is incredulously human.

A mothman does not bare his wings to anyone but his mate. Even in flight they are too fast to be seen. You are so enamoured by it that you don’t notice the shift in gravity until the force on your body lightens and your stomach drops.

You squeak. Frantically clinging to his shoulders and turning your face into his neck, Shouta makes a sound suspiciously like laughter. Your body sways in his arms as the too-corporeal trees rise to meet him. What you cannot see you listen out for; leaves rustling, groaning branches, any sign to indicate where you’ve landed.

When his wings retract the shadows do not recede. You’ve been brought to a dark place. A few metres above your head there is a long slit of light bleeding into the lofty space. You’re distinctly reminded of a grave. That thought makes your heart thump hard against your rib cage.

A calm tenor breaks the silence and you refocus on the figure above. Red eyes bleed into the darkness. Long black hair drapes over his shoulders and blends into the light fluffed ruff of his neck, reminiscent of a scarf that extends down his chest and back into his large wings, which he has tucked closely behind him.

Broad feathery antennae flicker on top of his head, so distinctly insect-like, but his body and hands are startlingly human— it would be, if not for the black tipped talons that grew from each finger and toe.

“Are you still frightened?”

You realise you’re being cradled with deliberate care, as if you might shatter. He treats you like this is the first time he has ever met another living thing. There is barely any pressure behind the claws curled at the base of your neck. All you can think is that he’s warm. Soft. Guided by wonder, inhibitions lost in a concussive fog, you reach up to cautiously touch his face.

Shouta had multiple nests. The team before you took over had planted cameras in all of them only for their recordings to be destroyed, pieces left strewn by the food hatch. It agitated him, thus you respected those wishes. But in doing so you also cut off any means of behavioural observation.

This meant you knew of them, but nothing more than that. You had no idea which nests he actually used. You had no idea how he spun them, or what they looked like from the inside.

What you have been lowered into is not a grave, though it is deep and narrow. The bedding yields, padded under your back, emanating the smell of upturned earth and petrichor.

This is his primary nest.

Your tongue feels too thick for your mouth. “You can… you can speak?”

A black tipped finger hooks into the collar of your shirt. You feel it sharp like a knife's edge, and the fabric rips with barely any pressure. Shouta snorts. And then, “Your kind is strange. Presumptuous,” he traces over the swell of your breast. “And soft”.

There’s only intent to satiate his curiosity, but you feel something dangerously warm coil low in your belly. The broad, feathered antennae atop his head curl toward you, almost prehensile in nature, as if they can sense it.

“You can’t,” words fail you as his tongue glides over your pulse. “You’ve never spoken before. You can’t blame me for being surprised”.

“That wouldn’t be logical,” he murmurs. You exhale shakily as his teeth nip gently at your lobe, pressing what could be a kiss to the shell. “It’s not as if your primitive ears would be able to hear me through the glass”.

The baritone of his voice frissons down your spine and you find yourself clenching your thighs. Shouta braces over you until he is all there is— and you are all he sees.

You argue fruitlessly in attempts to maintain self control, “We could’ve talked through the speakers”.

“We could have. But then the other humans would know this part of me,” he replies plainly. “Is that what you want?”

You’re a little embarrassed by the immediate ‘no’ that rolls onto the tip of your tongue. You bite it and let your silence answer for you. A disservice to your team and to your research— you seek truths and yet the truth is you are secretly happy that this is yours and yours alone.

Shouta huffs. He brings your foreheads together and your knees part reflexively to make room for him as he settles between them. The shine in his eyes has dimmed into a simmer. It reminds you of a pyre after the fire has burned; the glowing ash left to cool overnight.

“If I had not played along and acted beastly you wouldn’t have paid attention,” he continues. You tremble as he slots against the cradle of your hips, a suggestive pulse felt between your legs. The size of his body forces your legs wider around his waist. His cock is heavy and the heat emanates through your work pants. He doesn’t move, and he waits.

“You…” you’re breathless when it hits you. “You could’ve left all this time”.

He rises slowly at your words and tilts his head, beckoning you to continue. There is an unwavering composure about him that leaves you uneasy. You got the sense he knew your thoughts before you voiced them.

“You stayed and cooperated with our research. Even though… Some of them treated you like an animal. You could be anywhere but here”.

Shouta gives a disapproving chitter. The sound devolves into a hum. He settles a large hand on the top of your head and leans back into your space, uncomfortably close, as if to impress the answer upon you. “Here is where I am supposed to be”.

He’s not a monster, just something that wants to belong.

Your hand smooths over his cheek to his hair, the other guiding his palm to your chest where your heart sits. He squeezes at your chest, curious. Gentle fingertips brush the antennae rooted in a crown of thick black hair. The sweet resonant purr surges and you watch the touch shudder through his body in awe.

Your blood sings, reacting to his desperate call with a burst of exhilaration. A thought crosses your mind— had it been you he was chasing, or this feeling?

Was this how it felt to be a predator?

“Here. With me…” you rasp, wetting your lips as your eyes fall to his mouth. Shouta smiles and you have to temper the urge to touch his teeth. “I’ve worked here for a long time. Why wait until today?”

“Courting takes time. And though I was sure of you I knew you weren’t ready,” he rasps, rocking up against your sex. A gasp catches in your throat and his antennae flutter in response. “I can smell that you are now”.

“Smell?”

Shouta hums an affirmative. “All creatures have a cycle. Your body changes over the weeks,” the hand over your heart descends to your stomach, resting above your waistband. The repetitive stroke of his thumb is doting, almost. “Soon you will be ovulating”.

You are torn between horror and amazement. The craving to write this down was insatiable. Truthfully it shouldn’t come as a surprise that Shouta could know that— he was finely tuned to his environment. That was the entire purpose of chemoreception.

Regardless, that knowledge instills a sense of vulnerability in you. The scales felt tipped entirely in his favour and there was nothing you could hide from him. It was equally liberating and frightening.

A quiet trill pulls you from your thoughts. He must pick up on your anxiety, because mothman crowds you back against the nest and you sink further with a weak smile, your fingers threading into his fur. Wildflowers and long grass borders your periphery. You hadn’t much chance to appreciate his hard work in the dark.

“Shouta,” you faltered. Perhaps you should be more concerned that giving yourself to him was never a question. “Are you sure it’s me you want? I’m just a human”.

“I see that,” he stated dryly. “But you are my little human. My mate. This is not up for debate”.

Memories surrounding your tentative relationship over the years come to the forefront of your mind. How purposeful and gentle he was, the obvious preference for your company, his willingness to share his secrets and weaknesses just to see you satisfied.

The pregnant pause is mistaken for hesitance. Shouta brings your hand to his throat, inner wrist tickled by the plumage. Soft hair trails up his neck and thins by his jaw. Behind him, his wings unfurl and stretch. Pushing the heel up to his jugular, you feel six deliberate clicks. The rhythm of each is individual, some pitched and others deep, and the silence between is different in length, almost similar to morse code.

“What did you say?”

“Your name,” he rumbles.

There is underlying significance you aren’t privy to, yet you feel it all the same. You meet his gaze. Skin feverish, breathes coming quicker. Your hips twitch helplessly and he bites back a croon.

“Okay. Touch me, ” you slowly coil your arms around his neck and bring him into an embrace. He goes doubtlessly, engaging you with knees settled either side of your hips.

Shouta cuts your clothes off carefully and with ease. The simple hook of a talon and they tore like thin paper. His tongue, long and tube-like at the tip, glides between your breasts, flicking over your nipples and watching with fascination. It’s as though the roles have switched. You are the subject now.

You laugh breathily as he nuzzles into you, palming at your soft stomach. Shouta works his way down your body, giving a curious churring sound as more of your body reveals itself. He tears away your pants, but rather than discard them, he tucks them into the borders of the nest.

The air feels good on your skin, cool where it kisses your arousal. “Hold yourself open for me,” he says. “I want to taste you”.

An overwhelming wave of embarrassment washes over you as he guides your hands to the back of your thighs, ankles hooked over his broad shoulders. Pressure behind his claw-tipped fingers, Shouta gently pries your folds apart to demonstrate his wishes. “Like this”.

You moan, bear down on his tongue at the first lick as it glides over your clit, a shudder rolling through your body at the threat of his teeth. He descends again and again with bottomless yearning, no longer hunger, rather like an elastic compulsion pulled impossibly taut.

A pleased chitter vibrates against you. His wings extend and shudder, looming above like tapestry. “So good,” he breathes in, shameless as he noses along your cunt. “So warm. You smell even better than usual”.

The muscles in your thighs clench as the narrow tip of his tongue teases your entrance. You push down into your heels with a weak cry of complaint and he obliges, gently pushing inside you.

Your breathing falters. “Sh—Shouta,” you croak, reaching down desperately to grasp his plumage the deeper he sinks. It feels never ending, flexing and twisting experimentally as he draws out, still keeping his lips pressed up against you.

Gradually he builds a rhythm. Observing raptly from his place between your legs, his gaze never strays, gleaming when your hips buck into his mouth. It’s his expression that spurs you on— that rapt, intense desire.

Shouta stretches you on his tongue, the obscene slick sound of saliva echoing throughout his nest. The tension low in your belly coils, taut, and you feel it pulse. Your toes curl and you let out a loud, broken moan that sounds like relief.

“Don’t stop. Feels so good,” you keen, balancing right at the crest. Shouta’s pace grows anxious the closer you get, his big hands palming at your thighs, talons pinching skin. He forces them wider as he presses his weight into you with a long groan. “Yeah. That’s it, make me cum. Oh fuck—!”

A moment passes without air, yanked under by the force of it. Your body wrings tight and the tension snaps. Undone, loose at the seams as he takes you through the aftershocks quaking through your body.

You return to yourself, registering the quiet hum reverberating in your skull. Shouta nuzzles your sensitive clit before making his way up your torso. He smells like sex. His ruff, chin and cheeks are wet with arousal. You can taste yourself on his tongue as he licks over the seam of your lips, and shivers when they part to meet him.

The kiss is strange; not quite a kiss, more a press of mouths. You suppose it can’t be helped with teeth like his. His effort is far more endearing than it has any right to be.

Brief fatigue washes over you and settles into a giddy afterglow. The black spots in your vision dissipate. A short, soft chitter comes from his throat. The noise is familiar— they’re exactly like the sounds he would make when you were anxious.

“I’m okay, Shouta. You— You’re a bit too good at that,” you reassured, taking his face into your palms and feeling it in his cheeks when he smiles. The shifting wings behind his head draw your attention as they flutter. He’s near enough for you to reach out and stroke them.

They’re breathtaking. The texture is unlike anything you have ever felt before. You pause at his squirming, “Does it hurt?”

He huffed a laugh. You think that will never get old. “It doesn’t hurt”.

“Feels nice?”

“Too nice,” he says, stroking your hips. Lifting your hips, you grind lightly over his cock. You swallow, noticing how much it had grown, now completely unsheathed. Shouta reflexively chases the feeling, bucking up against your sex. You both hiss at the sensitivity.

Timidly, you ask, “Can I see?”

He nods.

The size is daunting. His cock is curved, long, but more notably it is thick. Fleshy in colour and hot, leaking a clear liquid over your hand. Ribbed around the shaft, the slight bumps slide under your palm as you bring your fist up to the narrowed head. No spikes. Good. If you met God you’d thank him.

It is crowned by sensitive skin, not unlike a human’s, but in gently pulling it back you find it reminds you more of an ovipositor. Shouta’s rumbling deepens, head hung between his shoulders. Drapes of long dark hair fall to curtain his face. His antennae quiver in place, wide red eyes looking back at you.

You feel yourself ache with unfulfilled arousal. Pressing your thighs together does nothing but tease. Shouta watches you guide his cock to the apex of your thighs, his chest heaving as you glide him through your wet folds, drenching yourself in his slick.

The cryptid pushes into you with a gentleness that is almost terrifying in its intensity— so out of place for a supposed harbinger of suffering. “Careful, little human,” he rasps, an ever present humming in his chest.

A pleasant tingling sensation begins to spread throughout your abdomen, relaxing your muscles, like sinking into the soothing heat of a hot bath. You’ve long shut off your avid questions, rendered thoughtless and pliant by the pressure. “Oh,” you exhale, struggling to keep your eyes open. He’s barely halfway in.

Shouta pulls out slowly and rocks back in, repeating the motion as you open up to him. You crane your head, jaw slack as you moan, reaching out to the immense silhouette above you. Everything about him is big. It’s all you can notice. He’s taking handfuls of you, kneading the fat at your thighs, hooking around them and pushing your knees toward your chest.

“Look at you,” his voice is thick and trembling. You whine, watching the way you swallow around him, clit swollen and twitching. “Perfect,” he rasps, the mix of your arousal dampening the fur around his base. He pulls out again, tantalisingly slow, and your legs start to shake.

“Shouta,” you choke, not knowing what it was you were asking for. He gives it to you anyway, rocking forward in one harsh movement, setting a pace that splits you in two. You can almost feel his cock is in your throat; touching parts of you you didn’t know existed; carving out space for himself and making a home of it.

The earlier mindfulness is gone. Shouta sets a divine pace. He shifts on his knees, gripping at your waist with his talons pressing into skin, pulling you down onto his cock. Praises have dwindled into a language you cannot understand, but you recognise those six successive clicks— he’s calling your name, over and over.

“Fuck, fuck, fuck. Ah. What is—?!”

The hypothesis is reaffirmed by the sensation of him stretching you further, widening inside you, inflating as something pulses through his shaft, abandoning his body and slipping into yours. Your mouth falls open as heat prickles across your skin and what feels like a second orgasm crashes over you. You’re left suspended in a free fall that never seems to end.

It feels too good to panic about. Sperm packets or eggs or both— whatever they are, they’re smooth, cooling where they gather inside of you, and right pushing up against your sweet spot. Tremors wrack through your limbs and Shouta appears no better. His upper lip curls, wings fully presented and twitching.

Weak, you wrap your arms around his head and cradle him to your chest. Your fingers brush over the apex of his wings and with barely any exertion, he slams you back onto his cock, a loud groan drawn from his chest. His pelvis slaps against your clit and in a moment of lucidity, you feel the ground rise to meet you.

Rigidity bleeds from your muscles as you cum again, soon replaced by a wave of exhaustion. You grimace at the uncomfortable bloated feeling in your belly. Shouta is muttering, antennae curled and brushing the swell of your cheeks. You can hear his voice. Muffled, as if you were under water, “You did well, little flame”.

Thinking aloud, you mumble, “What if they don’t take?”

He nudges your chin, gathering you into his arms to cocoon you both, “I’ll make sure they do”.

-

He nudges your chin, gathering you into his arms to cocoon you both, “I’ll make sure they do”.

Katsuki who takes it upon himself to pin back your hair mid-conversation because he's noticed you pushed it out of your eyes at least four times while you were speaking.

Katsuki who sometimes pokes your side when he passes you by - revels in the way your eyes light up even when you're whining about how mean he is and squirming away, batting at his reaching fingers.

Katsuki whose arm is always behind your head when you're seated together, his fingers mindlessly wrapping and twirling around one of your cute little curls.

Katsuki who takes up the whole couch and raises an eyebrow every time you try and fail to push his heavy legs away to make room for yourself. Graciously, he lets you do the whole song and dance every time, gives you the same winning smirk each time you relent and lay on top of him instead, your head on his chest and your body between his legs.

Katsuki who always has his hands tucked around your waist- sometimes by your back pocket or the straps along the waistband of your jeans. Looks like a mean guard dog in public until you tug him down to give you a chaste kiss- to which he always responds by giving you another the second after you detach from him.

Katsuki who, since dating you, has never tied a tie correctly and follows you around like a lost puppy until you concede to tie it for him. He really doesn't even mind when you teasingly muse how "the great Dynamight can't even tie a tie?" because what you don't know won't hurt you. Vermillion eyes stare down at you the whole time, committing to memory the way your bottom lip tucks between your teeth, your eyes flitting between the tie and the youtube video on your phone, because god knows you don't know how to tie a damn tie either. When you finish with a proud grin, he presses a kiss to the apple of your cheek with a matching lopsided smile.

— content warning: smut, mdni 18+, hard dom!kirishima, slight!fear play.

it was a huge mistake for pro hero!bakugou to send his sweet little sidekick out to villain!kirishima’s lair. it was like sending a pig to a slaughter house, a lamb into a lion’s den...but you were the dynamight’s sidekick, there wasn’t anything you couldn’t handle. he’d thought, you were trained by the best of the best.

kirishima should have been afraid of you.

but then it’s so cute how easily you’re turned into a quivering mess beneath the bloody villain, tiny pussy stretched over his thick and hardened cock as he pumps it into you over and over again. your hero costume is in tatters, clawed away by blood riot as soon as you showed a crack in your resolve. the wire you wore crushed as kirishima pulls apart the coloured spandex you wear (proudly donning your agency colours)—slick with your arousal, squishes your teary stained cheeks together all while fucking his way into your womb and lining it with his seed, his thick white cum until you feel it spill over your puffy folds.

you don’t beg for him to stop, you beg for more. you don’t cry because it hurts, but because it’s not enough and you feel like you’re falling apart at every nudge of the villain’s cock against your squishy ribbed walls. you squeeze around him at the sound of the earth shattering above you, blood curdled screams no doubt from the many henchmen enlisted by kirishima, blood riot himself. the red head keeps you pinned to the surface below, smiling cruelly at how you weakly squirm for your mentors help and how you so eagerly grind your hips up to meet his dick that churns up your guts and makes you drool down your own thighs— marked by his grip on the soft flesh.

your heart weighed heavily in your chest as you walked away from another couple who had shaken their heads when you’d shown them a picture of your cat, asking if they happened to have seen him wandering today. earlier, aki, the cat in question, had darted out the door when you opened it to grab the package sitting on your porch. you would have run after him as soon as he slid past you, but the thought of chasing him down in a towel was accompanied by those of risky consequences. ever since you’d thrown on something more presentable, you’d been walking around town seeking out aki. though, you had to call it a day eventually. the sun was beginning to set and no matter how much you loved your cat, you knew searching for him in the dark was inefficient and dangerous. with a frustrated sigh, you smoothed a hand over your head and turned in the direction that would lead you back to your house. your shoes scraped against the concrete of the sidewalk as you begrudgingly started on the path home. to keep your mind from drifting to the worst-case scenario, you focused on mentally drafting a missing flyer for your lovable yet, made apparent by today, troublesome cat. you were pondering on how much money you could offer as a reward when something in your peripheral vision caught your attention.

a man with messy, violet hair was crouched down at the threshold of an empty alley with his hands resting on his knees, quiet kissy noises coming from his puckered lips. your steps slowed as you came closer to approaching the peculiar scene unfolding before you. the man’s vocal beckoning seemed to be in vain.  he turned his focus to the bag secured around his torso, reaching into it and rustling around in search of some item unbeknownst to you. after only a moment, he pulled out what looked to be a cat snack. a smile graced his face, as it seemed his bribery was successful. a cat with a black coat similar to that of your own happily advanced toward the man with the promise of a treat. when you recognized the familiar band of navy blue nylon strapped around the animal’s neck, you gasped. it was aki. you were readying to tell the stranger to step away from your cat, but stopped in your tracks upon seeing the man inspecting the tag hanging from the feline’s collar.

Ok so like heavy on the hybrid stuff here and a little iffy so though it's short it'll be under a read more.

(CW: hybrid ownership ((you're kirishima's family property though he doesn't treat you like a animal/pet)), lactation kink, interspecies relationships, all characters are above the age of 18 kiri is 20 and reader is like 19)

also @aizawa-horny-brigade since ya wanted to be tagged 😘

When you started dating him that was the deal. He risks his life constantly; there’s no assurance ever that he’ll return home to you. So even now, years after the tradition began, now that the pair of you wear matching rings on your fingers and the bed he stumbles into each night is the very one you occupy, he still calls.

It’s never anything substantial. Sometimes it’s quick, barely a minute long, a quiet greeting and a simple home soon before he hangs up to change out of his uniform. Sometimes you stay on the phone for an hour; talking about your days as you both commute, planning dinner, discussing your upcoming visit to his parents over the weekend. More often than not it’s at 5:00 almost to the minute—he scarcely likes to dawdle, preferring instead to end the work day and have dinner with you regularly—and you typically know ahead of time when he’ll be working late.

Of course, there is a downside. On the rare (very rare) occasions when you don’t get that call, it makes you panic.

He calls you a dumbass every time, rolls his eyes and scoffs, yet he always holds you tighter afterwards. There is always food in his hands when he opens the door, shoved into yours in silent apology. You always catch him as he’s drifting off, pressing a kiss to the nape of your neck and promising that he’ll always come home safe.

You’re certain that’s what will happen tonight when you don’t get your call at five.

You’re still pretty certain he’s okay at 5:30. You text him a photo of the meal you’ve made, the two place settings, with a caption telling him not to let it go cold.

By the time 8:00 rolls around you’re worried. That’s bedtime—he’d never voluntarily miss it. Yet you assure yourself by turning on the news, aware that if pro hero Dynamight had fallen to a villain or been crushed by a collapsing building it would be talked about and nothing of note was being said. He typically told you when he was going out on more secretive missions, too; not directly, but subtly. He’d implied nothing of the sort today. He’d likely just been dragged out to some bar by his high school friends, the only people able to do it. He’ll come stomping through the door at midnight smelling like booze but stone sober, and you’ll shove him into the shower and sit on the sink while he bitches about Denki and Mina and Hanta with affection in his voice. Yeah, that’s it.

9:00

10:00

11:00.

You’re still in your work clothes, you realize, yet it’s far too late now to change. The lights are off in the living room save for the multicolored display of the television, which you keep on out of a sinking feeling that any moment your fears will be confirmed. An image is ingrained in your mind: his body, broken and bloody. Lifeless.

You wonder what villain could have taken down Katsuki. You think they’d have to be terrifyingly strong to even stand a chance, and still have to play dirty to win. Maybe they’d looked like someone he knew—Izuku or Eijiro, or maybe even you. He’d have gotten a shock from that, a villain strong enough to harm him would have only needed that chance. Or perhaps it had been a building, perhaps he’d charged in after hearing an old lady calling for help. Foolhardy heroics had always been Deku’s thing yet your husband could get caught up in it at times. You blame their shared mentor. All Might had more than enough to spare.

Katsuki would chide you for staying up so late, especially on a work night. He’d take one look at the clock on the wall and bark at you to go to bed, never mind that he could be dying in an alleyway or bleeding out on some rooftop. He’d drag you to the bathroom to wash your face. You wish he were here to do it. Your conjured version isn’t persuasive enough.

But then you get a call. It’s 1:34 in the morning. You’re on the couch, curled up in the corner with the cat pressed into your side and a blanket thrown over your legs, staring sightlessly at the news half dozing off. Your phone is on the coffee table in front of you, and it startles you awake when it buzzes.

You lunge for it, too relieved upon seeing the contact on the screen to care about the sound of your cat scrambling off into some safe corner of the apartment. It’s Katsuki. His name is like a beacon of hope as you press accept, as tears spring to your eyes and your thumb shakes just barely. You can already hear his gruff voice calling you a dumbass for being so worked up, the offended tone as he asks you if you have any faith in him at all.

Except it’s not Katsuki on the other side of the line, not this time.