Chapter Text
They’d discussed plans before, for what they’d do when Shinobu’s rut hit when they’d first become mates. Her first one since they had gotten together had happened less than a month later, and she had spent that one alone- the both of them not quite sure how to make her rut safe for both of them.
The next few over the following year were suppressed with medicine to be much milder and still spent by herself, but after much discussion (and experimenting) the two of them had finally felt ready to try and spend Shinobu’s whole rut together.
Both of them had notified the master before-hand of their unavailability for the next few days or so, and Shinobu had done her best to make sure the butterfly mansion had everything it could possibly need before she was out of commission. Giyuu hadn’t needed to do much else besides make sure there was actually food at the Water estate, as Shinobu hadn’t wanted to have her rut at her own mansion. Out of all the Hashira’s estates, the butterfly mansion always had people coming and going, and Shinobu knew that all the extra scents of strangers would only set her off harder, especially during a full, non-suppressed rut.
It was easy to tell when the very first signs of her rut started showing when she woke up the next day, skin warm and tingly, and her teeth itched to bite down on something. Preferably Giyuu’s neck. Or anywhere else on him, really. She wasn’t picky. Not to mention the low heat pooling below her stomach.
Arriving at the Water estate bright and early, she felt a small twinge of embarrassment from how eager she was. This wasn’t the first time they’d be having sex- gods no, a rut was a terrible time to have any firsts in regards to sex, not to mention unsafe in an unprepared alpha-beta male coupling. They had done a lot of research into what they could do to make things go as smoothly as possible. She would be the first to admit that their attempts in seeing if Giyuu could safely take her knot without too much pain or distress was one of her favorite things to practice.
She still hadn’t actually knotted him before- just had fun with objects simulating it. Shinobu felt her dick twitch in excitement at the thought. Already, her rut was affecting her more quickly than she expected.
Not bothering to knock, she let herself into her mate’s estate as soon as she arrived, the building bare of any scent except his faint sea-breeze scent that already had a faint tang of sweet arousal to it. His scent was usually so faint, even for a beta, but it seemed the more enhanced sense of smell her rut gave her let her detect more of the nuances underneath it.
Despite her instincts begging her to run straight to him, she took a leisurely pace through the halls of the estate. Just the building of anticipation alone excited her, and no doubt it was affecting Giyuu too. Unlike him she knew her scent was much stronger normally, and it was only stronger on her rut- not that she could smell her own scent.
Following his faint scent, Shinobu was led to one of the many unused rooms in his estate- likely chosen so they didn’t accidentally wreck anything important in his room. If he had anything in there. Not that she blamed him for that- she could get a bit… enthusiastic. It wasn’t her fault Giyuu was so pretty beneath her covered in bites and scratches.
Opening the door, she was greeted by a sparsely decorated room that had been filled with some blankets and pillows. Giyuu sat near the edge of the makeshift nest examining a vial in his hand. The sun shone through the window and illuminated his skin not covered by the loose yukata he was wearing. At the sound of her entering, and likely also from the sudden increase in intensity of her scent, Giyuu looked up at her from below long lashes- his face impassive.
“Alpha,” he said the word slowly, not quite stumbling over it but it wasn’t something he’d called her before, a call that didn’t come naturally to him. As a beta, he didn’t have the same instincts as an omega to refer to her as Alpha, or anyone else by Omega- if that was ever relevant. Which it wasn’t.
The sound of him calling her Alpha went straight to her dick, and if not for the pants of her uniform being baggy she was certain Giyuu would have had a fantastic view of her cock straining against her pants. As it was, she knew her fundoshi was starting to become completely soaked.
“Ara~? That’s new,” More heat pooled below as she saw the corner of Giyuu’s mouth twitch. The beta knew exactly what he was doing to her. He could have been completely nose-blind and still smell the increased scent of her arousal in the air.
The beta stayed in place, even as she prowled over to him and stood right before him, tilting his head to look up at her with a delicate finger under his chin. He looked up at her with half lidded eyes.
There was something exhilarating about standing over him like this, him so pliant beneath her hands. Even as she felt smaller without her haori- it along with her shoes had been left by the front door- leaving her just in her uniform. Simultaneously she felt bigger and stronger than ever with the combination of her unsuppressed rut and how Giyuu looked up at her.
A pretty pink blush spread across his cheeks as she slowly traced her nail down his jaw, then neck and finally just shy of the scent gland in his neck. She lightly felt the deep scar she’d left on his neck, a vicious, territorial mark claiming him as hers that contrasted with the cleaner mark decorating her own neck.
Her nail dug into his skin sharply, earning herself a quiet, breathless gasp from the man beneath her. She pushed him by the shoulders, forcing him to brace himself with his arms behind him as he leaned back. The yukata slipped to show more disappointingly unmarked skin.
She leaned down and captured his mouth in a kiss, her fangs immediately digging into his lips and drawing blood. A quiet groan came from his throat as she lapped up the slowly dripping blood from his lips and in his mouth. He let out another quiet gasp as she knelt down, mouths still connected, and slid her free hand inside his clothing and fondled one of his pecs in a way not unlike what he would do to her own breasts.
Rolling his nipple between her fingers, she gave it a harsh tug- prompting another gasp to escape from Giyuu’s mouth. A gasp that she took full advantage of to shove her tongue even further down his throat. As she pulled back, going nearly cross eyed to look at the string of spit still connecting their mouths, she felt one of his hands land on her hip, fingers digging in for dear life as if holding onto her would somehow stabilize him.
Shinobu leaned back to admire her work, her hand on his neck shifting so that her thumb kept massaging at his scent gland while she took in his face. Pale skin flushed a pretty pink, his expression slightly dazed as his lips and around his mouth were smeared with his own blood, lips puffy from where she kept biting.
Her tongue darted out to wet her own lips, her mouth stretching into a smile as the metallic taste of Giyuu’s blood coated her tongue. Leaning back, the hand she used to grope his chest slid further down, nails gently scraping over his stomach until she reached his fundoshi.
But, instead of that, her fingers made contact directly with his cock, her fingers wrapping around it and squeezing lightly as she gently tugged on it, a sly grin on her face.
“Oh?” Giyuu’s hips thrusted weakly in her grip, desperate for her to move. “Interesting decision there,” her hand slid up his dick, fingers rubbing at the slit at the end of it, her fingers slick with precum. “I bet you were so eager you barely even had that yukata on when I arrived,”
The barely audible whine from his throat was all the confirmation she needed. Removing her hand from his dick she undid his yukata, revealing the rest of his body like a present for herself. Her thighs clenched when she saw the frustrated look on his face- removing his hand from her waist to start palming at himself, only to look up at her in frustration as she snatched his wrist and held it away.
Normally, it would be laughably easy for him to break her grip. Small hands and just generally the weakest of the hashira physically by a significant margin didn’t lend itself well to manhandling her mate. But on her rut? That was a different story. She wasn’t ashamed to admit she got a thrill over the slight enhancement to her strength while on her rut- still not as drastic a change as some alphas, but it was just enough to actually force Giyuu to exert some actual effort if he really wanted to fight her handling of him. Not that he ever did.
“We can’t have you getting too tired too early,” her smile was poisonously sweet, sharpening when the realization set in for Giyuu. Her rut had barely started. They were going to be doing this for days, and they weren’t even halfway through the first one. Mild anticipation seeped into his scent.
Giyuu let out a cute, startled yelp as Shinobu pushed him back farther, the man propping himself up on his elbows with wide eyes and both of her hands grabbed his thighs- her nails digging into the meat of them. The scent of his arousal spiked as she leaned back and nearly tore off her own clothing. Her pants were thrown somewhere in the room with her jacket, leaving her uniform shirt on but completely unbuttoned.
Shinobu let out a low growl when Giyuu moved to reach out to her. The beta obediently leaned back, watching her with wide eyes as she came to him and settled between his legs. Resting her hands on his hips she glared, angry at the indignity of her small hands not being big enough to encircle his tiny waist. His muscles tended under her grip.
“Shinobu- alpha,” he breathed out, bucking his hips up as he searched for physical contact. Another thread of Shinobu’s restraint frayed and snapped at the breathy call of alpha. Something primal in her howling to take and take. Especially when being offered so nicely.
Dragging her hands down, her fingers tapped against the skin around his hole, eyes brightening with delight as she felt what was clearly remains of oil used to lubricate whatever it was he was shoving up his ass before she arrived. It had since smeared onto his thighs, still wet.
“I see someone’s eager,” she trailed a finger around his hole, teasing in her moments but not quite entering him. Her other hand moved back to his thigh, spreading his legs apart more. Giyuu bucked under her touch.
“I wasn’t sure how far into your rut you’d be when- ah-!” Shinobu slid a finger into his ass, knowing full well it wouldn’t be anywhere near enough to satisfy. His own fingers were both longer and thicker than hers, which was why he usually stretched himself whenever it was needed.
“When what?” She added another finger, fucking into his hole as she searched for that one sweet spot.
“When you came here-!” There were tears of frustration at the corners of his eyes as his cock bounced against his stomach while he tried to grind into her hand, desperately seeking out pleasure.
He bit his lip hard and let out a harsh breath when her finger rubbed hard against a spot inside him, prompting a satisfied smirk to make its way onto her face. She added a third, and then fourth finger. Giyuu squirmed under her as she pulled out her fingers, satisfied with his preparation.
Her own cock was straining against her fundoshi, and she was quick to pull it out and line it up against the cleft of his ass, rocking back and forth- still teasing. Her fingers dug into his thighs as she pushed his knee out to the side, almost into a split. Shinobu always underestimated just how flexible Giyuu was, being pleasantly surprised each time when she maneuvered him however she wanted with any visible signs of stress.
“Giyuu~,” she drawled out his name, breath hitching with each thrust against his ass.
“Please,” he gasped, pushing himself against her.
“What’s the magic word?” Shinobu couldn’t help but tease.
“Alpha-!” She shouldn’t be surprised at this point when he said alpha, but the last remains of her self control snapped. Lining up with his hole, she shoved her entire cock into his ass in one aggressive movement.
As he let out a muffled groan from behind grit teeth, she leaned over him and sunk her teeth into the junction of his neck, drawing blood as hips snapped harshly. The haze of rut had finally started fogging over her mind.
The hand not holding his leg out slid up and kneaded his other pec aggressively, pinching and tugging at his sensitive nipple as she roughly treated his tit like wet clay she was molding. All she could hear was the wet slap of her dick thrusting in and out of his wet heat and his barely restrained moans as she violently hit that sweet spot inside of him with almost every thrust.
Her hand, pausing in its abuse of Giyuu’s chest, slid down to his other thigh as she gripped it hard enough for her knuckles to turn white. With a sharp movement she shoved his other leg out, spreading him out before her even as his thighs flexed with half hearted effort to close his legs.
It wasn’t often she was able to get Giyuu to be so vocal in bed, and if she was a bit more in her right mind would have wondered if the fact she was in rut was affecting anything in Giyuu despite him being a beta.
Face and chest flushed he looked at her with wide eyes, his own hands lifting to play with her own chest, movement a bit awkward from how he was positioned, abdomen clenching as he held himself up from falling. His hands were large enough to cup the entirety of her breast in one of them, kneading and massaging the whole thing, occasionally pinching and tugging at her own nipples. His movements jerked with each thrust into him.
His breaths came quicker, and Shinobu could tell he was close to finishing. She grabbed the base of his dick, ladies first and all that. She could feel her own climax coming on, the knot at the base of her cock slowly inflating as she thrusted in and out. Her knot caught on the rim of his hole a few times before she slammed inside of him, letting go of his dick so they both came at once. Giyuu’s release coating both of their stomachs while all of her was locked inside of him.
“You would look so good round with my pups,” she could vaguely hear herself talking- babbling, more like, as what she was saying didn’t make sense. Her hands slid down from Giyuu’s thighs, releasing them and letting him somewhat draw his legs back together- not that he could completely close them with her still between his legs. Instead, long limbs wrapped loosely around her waist.
Eyes closed, his black hair stuck to his forehead and skin to the layer of sweat on him. He let out an uncomfortable whine as Shinobu shifted her own position to something more comfortable, gently pushing him down until she was practically laying on top of him until her knot deflated.
She didn’t know how long they just laid there, basking in each other's presence before Giyuu finally spoke, voice rougher than usual.
“How long are we tied together for..?” Shinobu hummed, face buried between his pecs. A wonderful pillow just for her.
“Depends. Could be as short as 15-20 minutes or as long as an hour,” that was as specific as she was willing to be. It wasn’t like she had any experience with knotting partners before this, but she was a doctor and had done her research.
Connected to Giyuu the fog in her head- that she only really noticed after it was gone- cleared a little bit, but she knew as the days passed it would only get worse when she wasn’t knotted in her mate. Shinobu let out a pleased rumble in her chest when she felt Giyuu’s fingers gently card through her hair, pushing it off of her sweat soaked forehead. Even now, she knew her rut wasn’t in full swing yet. The full peak of her rut likely wouldn’t hit until tomorrow and then from there slow down again.
She took her time to bask in Giyuu’s presence until she began to feel her knot shrink after what felt like ages, and already the warm feeling of arousal pooling below was greeting her even as she pulled out. There was something a little mesmerizing about watching her cum dribble out of his ass.
Giyuu watched her, blinking slowly in a way that reminded her of a cat as she crawled on top of him, legs on either side of his head as she sat on his chest while he loosely rested his hands on her thighs. She let out a noise of surprise as his grip tightened and he yanked her forward, mouth making contact with her pussy as his tongue immediately got to work lapping up all the slick oozing out of her. His nose occasionally bumped onto the underside of her rapidly hardening cock as he ate her out.
She grinded against his face with each lap of his tongue, fingers buried in his hair as she held on for stability. Her eyes flew open when he paused, only to sit up in one smooth moment, holding her by the legs as he reversed their positions, knocking the breath out from her lungs as she landed a bit roughly on the soft blankets beneath them.
“Ah-! Giyuu-!” She cried out as he took her entire cock into his mouth, twisting a finger into her cunt as he did. Shinobu’s hips jerked as she felt her cock hit the back of his throat every time he bobbed his head, cheeks hollowed out as he looked up at her. She opened her mouth to try and speak but only let out a moan as Giyuu shoved another finger into her, so much thicker than her own and reaching places she could never on her own.
He didn’t hold her hips down with his free hand, letting her fuck into his throat even as he occasionally choked whenever she thrusted in just the wrong spot. She’d feel bad about it if not for the fact watching him choke on her dick with drool dripping from his mouth didn’t make her cunt clench like an iron clamp on his fingers.
Giyuu’s fingers curled inside of her, hitting a bundle of nerves that had her nearly whiting out as she cummed hard down his throat. The beta pulled back with a cough, face red as her release coated the inside of his throat and part of his face. Grabbing him by the hair she pulled him up to devour him in another kiss, the mix of her release and his now dry blood still on his lips driving her nuts.
When she pulled back Giyuu looked a little dazed, lips slick with spit as he stared up at her.
Shinobu lost herself in the haze of her rut for a while, only half aware of mounting her partner again and again with a little bit of reprieve whenever they were connected by her knot.
The next time she felt fully aware, moonlight was shining in through the window, the rest of the moon dark. Giyuu lay exhausted next to her, looking a bit like he lost a fight with a wild animal from all the bites and scratches peppering his neck, shoulders and back.
“You back?” His voice was a bit wrecked, and Shinobu vaguely remembered aggressively fucking his throat a couple times and was a little surprised he was able to talk.
“For now,” her own voice wasn’t much better. She pushed herself up, frowning at the sensation of dried cum over both of them.
“I have food stocked in the kitchen,” he murmured, pushing himself up as well, unable to hide the wince of pain. Any other thoughts she was having faded away as she honed in on that wince.
“Are you ok?” The beta waved a hand.
“Just really sore- it’s fine,” he took a few deep breaths. “I might need to recover a bit longer after all of this is done but it’s fine,” he seemed more annoyed than truly upset about it, but Shinobu would be the first to admit she couldn’t always read him well.
“Can you walk?” Giyuu’s face twisted into something that wasn’t quite a pout.
“…give me a minute,” Shinobu couldn't help but laugh at him.
“Just stay there, then. I have a little bit before my rut ramps up again, so I’ll just go and bring some food here,” the fact Giyuu didn’t argue with her was telling.
Taking the yukata he had been wearing earlier that day, she wrapped it around herself before making her way through the empty estate towards the kitchen with legs that only shook slightly. Like Giyuu had said, it had been stocked with some simple foods.
She didn’t take long to collect some of the prepared food, not trusting her rut to stay away long enough for her to actually try and prepare a meal. It took everything in her not to run back to the room they’d been in. Despite Giyuu not being an omega her alpha was acting just as territorial over him, and some part of her couldn't help but be inordinately pleased about it.
Food in hand, she almost slammed the door open in her rush to get back to her mate, the oversized yukata falling off of her shoulders. Giyuu looked up from where he’d been wiping off his skin with a rag, face flushing at the sight of her in his clothing.
She all but shoved some food into his hands, watching as he ate messily while she took small bites out of her own late dinner. Giyuu finished before her and after pushing the dish close to the edge of the room, he made his way to the nest of blankets, clearly exhausted as he laid down.
“Tired?” Shinobu raised a brow at his narrowed look at her.
“…a bit,” he admitted. “You said tomorrow and the day after would probably be even more exhausting…” he trailed off, not finishing whatever thought he’d had.
“And if you’re still asleep when the next wave of my rut hits?” She already knew the answer, but she took pleasure in making Giyuu say it out loud even as his face flushed a brilliant red.
“…We already talked about it, do whatever,” he sounded dismissive even as he avoided looking at her. Shinobu’s thighs clenched at the thought. There was no doubt she’d be awake before him tomorrow. Hopefully she’d still be able to get some sleep in spite of her excited anticipation.
Giyuu didn’t look at her, not even bothering to take his yukata back, and seemed to pass out as soon as his head hit the pillows. Shinobu took her time to finish her food before stripping the borrowed yukata off and slotting herself right behind him, arms possessively wrapped around him and her nose buried in his neck, the alpha in her rumbling in content as she basked in the scent of her mate. Skin flush against skin, she felt warmer than she ever had.
It didn’t take long for her to doze off, her rut at a low, simmering heat that she knew was only going to get exponentially worse tomorrow.
Shinobu woke at what seemed to be the first light of dawn, her skin tingling and covered in a layer of sweat while lower down was filled with a burning heat as she was almost painfully hard. Her rut had seemed to start in earnest.
Rays of pale golden light shine through the small window in the room, illuminating Giyuu’s body, and as she sat up she got a good look at the faint dark circles beneath his eyes. It took her a moment to realize she’d been idly rubbing her erection against his back.
Looking at her mate’s naked form, she wanted to take as much time as her rut would allow her, especially if it meant letting him sleep in more. Carefully, she lightly ran her nails over his thigh, dragging down towards the inner part of it, watching as his muscle twitched in his sleep. Eventually she slid her hand into place and gently rolled him onto his back, taking her time to admire all the marks she’d left on him yesterday.
Despite everything they’d done yesterday, she got a different kind of thrill as she ran her hands over Giyuu’s body while he was asleep, watching his cheeks pinken and his mouth barely open as he breathed a little heavier with each glide of her hand in his sensitive spots. A hand groping his chest, another tweaking a nipple between her fingers. Sliding her hand down towards his cock but not quite touching it, watching as his dick twitched with each motion.
There was something endearing about watching his reactions when he couldn’t hide them, always so reserved when awake even when he tried not to be. He’d been getting better at it but he still wasn’t as reactive as he was now, dead asleep. Maneuvering him how she wanted, she spread his legs out and slotted herself between them. Her fully erect cock rubbing against his slowly hardening one. Looking around, she vaguely remembered him holding a vial of oil the other day, and if she wanted to avoid pain, or even just waking him up it’d probably be a good idea to find it…
Despite how much reluctance she felt in leaving, she did take the time to find where the vial had gone, it’d be worth it.
It didn’t take long to find it, and Shinobu would forever be thankful that Giyuu was asleep and not seeing her acting like an alpha thinking with her knot as she scrambled back to him. Vial in one hand, her other gripped into the flesh of one of his thighs tight enough to turn the skin white as she pushed his legs as far apart as she could without causing pain.
Pouring a generous amount of oil on her fingers, she let it warm up before carefully inserting a finger- Giyuu squirming in place as he slept, his nose scrunching cutely as his cheeks flushed a brilliant pink. It wasn’t long before she could add a second, then third finger, vigorously pumping her fingers in and out as he let out quiet gasping breaths in his sleep.
The electricity under her skin was starting to get unbearable, her dick painfully hard and fully erect as she rutted against Giyuu’s own. It was getting harder to focus as a layer of sweat built up on her skin. Unable to hold back any more, she lined the head of her cock right up against Giyuu’s hole, shuddering at the burning heat the contact produced before pushing in painfully slow.
Giyuu took her dick like he was made for it. His hole perfectly sucking her cock in and squeezing like a warm and wet vice. His flush had spread all the down to his chest, the sheen of sweat visible on his skin. Shinobu thrusted in and out slowly, savoring her time before the last bits of her resistance snapped for the next day or two.
With a pant of effort, she hooked one of his legs over her shoulder, his knee right by her head. She pushed it down against him, putting him almost in a vertical split- his cock rubbing against her stomach and weeping with precum, smearing it on her with each thrust.
It took her a few tries before she hit what she was looking for, Giyuu’s walls spasming around her and seemingly sucking her in further. He finally let out a breathy moan, his breathing heavy as she kept hitting against the same spot, the fluttering of his walls trying to milk her cock as she did.
Pressing harder on his dick as she leaned forward, she gently nipped and sucked at his neck, vicious little kisses and bites going from his collarbone to his jaw as she left vibrant marks behind in his skin that were sure to turn into spectacular bruises. She didn’t know what it said about her that her favorite thing to leave on Giyuu were cuts and bruises, and right now she didn’t care. She proudly admired the array of bruises that had formed from her actions yesterday. Anything that obviously staked her claim on him left her alpha purring contently.
A few more thrusts and suddenly Giyuu’s cock was spurting ropes of cum, the sticky release coating both of their stomachs. His mouth was slightly open as his breathing became heavier She fucked into him harder through his orgasm, her cock being milked for all it was worth as she felt her knot inflate once more, locking her in place as it felt like she would never stop cumming.
Panting heavily, she looked up to see Giyuu’s eyes looking back at her. His deep blue eyes hazy with fading sleep and arousal. The slight tinge of pink on his cheeks had turned a brilliant red color. Shinobu stared him in the eye as she turned and sharply bit his inner thigh, the leg pushed up near his head even as she felt the muscle tremble and strain as he tried to put it down.
“Good morning dear,” she cooed, more sincerely than she expected as she pulled her mouth away from the brilliant mark she made on his thigh from her teeth scraping and biting into his flesh as she sucked on it. Giyuu’s resulting moan was barely an exhale, he’d gone back to holding back and all it made her want to do was make him sing for her.
A tremor went through his legs as she forced his other leg up by his head, slowly folding the man in half all while still buried to the hilt in his ass. His breathing hitched as the change in angle, her dick twitching against that one spot inside him even as she stayed still. Giyuu looked up at her, mouth open and his pink lips slick with spit with his knees by his ears. It wasn’t a position they’d be able to hold long but she was pretty sure she could wring another orgasm out of both of them.
She wondered how many times she’d need to cum inside him to see a bulge on his stomach- the closest she’d ever get to seeing him pregnant, her instincts went a bit haywire at the idea. She was under no delusions her dick was big enough to do anything like that on its own, but so far she hadn’t had a dry orgasm yet and considering she was entering the height of her rut, she doubted she’d be running out any time soon.
Her knot had barely deflated before she was already thrusting again, Giyuu’s wordless cries of pleasure satisfied something deep inside her, her mouth widening into a full grin as soon as she started hitting him in that spot again and his cries turned to a choked off wail as he came on himself again, his own release smeared over his tits, with some even landing on his neck. His legs twitched as he tried in vain to unfold himself, his eyes half lidded and unfocused as Shinobu stared down at him.
Yet again he drew another orgasm from her and she watched, enthralled, as cum leaked from his ass around her dick when her knot wasn’t inflated. A selfish, possessive part of her took great pleasure in the fact none of the other hashira, nor anyone else for that matter, would ever see Giyuu even half as expressive or as vocal as he was with her. The thought of anyone else even potentially seeing Giyuu like this made her dig her nails into his muscular thighs, leaving crescent shaped indents in the skin.
After fucking him through yet another orgasm she pulled out, and let him unfold himself ungracefully as she admired the way her release dribbled out his hole and onto the blankets below.
“Giyuu~,” she cooed, grabbing his face with one hand hard enough to squish his cheeks as she made him look at her.
“Shinobu…” his voice was little more than a breathless exhale.
“I want you to ride me,” she knew the grin on her face had a distinctly wicked flavor to it. Giyuu stared at her, blinking slowly like a cat before slowly pushing himself up and resting on his elbows as he leaned back. He looked a little dubious at the idea.
“…If I lose balance I’ll end up crushing you,” oh and what a way to go that would be, she couldn’t help but think. She just smiled in response.
“You should have a teensy bit more faith in me, especially right now,” she couldn’t quite manhandle him however she wanted even on her rut, but that didn’t mean she couldn’t do anything.
She sat up, her hands behind her propping her up as she waited for Giyuu to come to her. The man looked like a mess as he slowly pushed himself up to a seated position, slightly hunched over, towards her as his gaze slowly roamed up and down her body. There was something deeply flattering and attractive about having Giyuu’s whole, intense, focused attention on her.
Legs spread apart, her cock stood straight up- a perfect seat for her mate to spear himself on, she couldn’t help but think. She was absolutely soaking the blankets with slick dripping from her cunt as she watched Giyuu approach, her eyes half lidded as her whole body burned. Giyuu stood on his knees before her. Even now he towered above her, carefully maneuvering himself so he was almost straddling her lap. She watched as his thighs trembled faintly with effort as he hovered in place for a moment.
Shinobu let out a little gasp as Giyuu reached beneath himself and grabbed her cock, lining it up with his hole. Her tip sliding against it, but not quite popping in. He made a small noise of frustration, something that, had she not been pressed up right against him, she’d have never heard. She heard his breath hitch as the tip of her cock finally pushed in with an absolutely lewd, wet sound.
Giyuu hovered for a moment, hands not quite resting on her shoulders as adjusted to the familiar feeling. Shinobu was patient, even if it took everything she had to not thrust up. The two of them hadn’t tried this before. Oh it had definitely been something she’d thought about (many times). There were many things she’d thought about- it was almost a favorite pastime of hers, thinking of ways to make Giyuu sob with pleasure, finally breaking that stoic mask of his.
With a smooth movement, Giyuu sank down on her cock, taking the whole length in one go as his ass met her hips with a slap of skin, a low hiss escaping from his mouth. Shinobu’s nails dug into his back, no doubt leaving long scratches along it. His walls squeezed around her length, his hole warm and wet from the oil she had used earlier and all her previous release that she never cleaned out.
With a shaky breath, not quite a moan yet, Giyuu once again waited a minute to readjust before meeting her eyes. He made quite the vision to her, pale skin and black hair sticking to his face with sweat. Shinobu rested her hands on his waist, fingers digging in enough to turn the flushed skin white.
Her fingers dug into his skin deeper, prompting him to slowly rise once more, thighs flexing with effort. It was clear he was still holding himself up a bit when his ass was flush against her hips. Each rise and fall felt almost painfully slow, her cock throbbing inside of him as his breathing got rougher. Moving his hips as he rose, he tried angling her cock to hit his sweet spot- little gasps escaping his mouth as her cock slid against his insides not quite hitting it.
It took everything in her to not grab him even harder by his waist and slam him down on her cock. She wanted to watch him fall apart as he fucked himself with her dick. His hands finally rested firmly on her shoulders, clearly trying not to hold her with a bruising grip. His breath stuttered and his hips jerked a bit, no doubt having rubbed her dick against his sweet spot. His dick, which had been slowly hardening, rested against her stomach.
With each rise and fall of his body, Shinobu could tell he was more consistently hitting that spot inside of himself, if the way his walls kept tightening around her meant anything. His dick was painfully hard and leaking, smearing wetness between the both of them as his movements became more erratic. His face was flushed and sweat glistened on his skin. Walls clenching even tighter it was clear he was about to finish.
Shinobu suddenly gripped his dick by the base hard enough to make a whine come out of his throat.
“Shin-hhh Shinobu -ahh- what?” He gasped, breathlessly, as he desperately grinded against her cock, searching for release. A mean little smile tugged at her lips at the first crack in his composure.
“Keep going,” her hips thrust up in time with his movements, her cock hitting his sweet spot with consistency, each thrust earning a choked moan from the man on top of her.
Giyuu’s eyes were narrowed, almost shut and visibly wet as he looked down at her, mouth slightly agape while his thick, black hair had long since fallen out of his ponytail and fell across his shoulders in a waterfall of inky black, the sunlight illuminating him from the back.
“Shinobu- please,” he choked out, fingers digging into the flesh of her shoulders as his movements up and down became more erratic, searching desperately for release. Shinobu gave a particularly rough thrust at the quiet beg, gaze unerringly looking into Giyuu’s eyes as tears of frustration welled up.
At the first sight of tears finally dripping from his dark lashes she let go of his cock, bringing her pace up to something brutal as Giyuu came with a wail, walls clenching like a vice around her as she kept thrusting through his orgasm. Ignoring the release coating her chest, she moved her hands to grip his ass- fingers digging in and promoting another hitched breath from her mate.
“Please- Shinobu- ahh-! Too- hahh- it-” his moan came out just shy of a sob as Shinobu fucked him into over stimulation, the beta unable to completely hold himself up. His head dropped heavily onto her shoulder, hot breath ghosting over her collarbone.
“One more, I know you can,” she purred into his ear. With his neck so conveniently close, she leaned forward and ran her tongue against his neck as her hands slid to his hips and dug in. His cock was hard again and digging into her stomach as he rode her- legs trembling with effort.
“Alpha please-!” White hot arousal shot through her whole body as she bit down on the junction of his neck hard enough to draw blood and painted Giyuu’s insides once more, the slick sound of her cock pumping in and out was obscenely wet. Giyuu’s head pressed harder against her as he let out another cry and came once again.
Her knot hadn’t inflated this time, and despite her wanting to keep fucking into the warm, wet heat of her mate, she was lost in the haze of her rut as she had another idea. With as much care as she could manage, she pulled out from Giyuu, finally releasing his neck from between her teeth and pushing him back slightly to see it all leak out from him.
The black haired beta was barely holding himself up, practically sitting on her lap as his legs failed him. She could feel his hot breath on her as tried to pull himself back together from two back to back orgasms. She shimmied her legs out from under him, wincing slightly at the heavy way his weight sunk to the floor. Carefully leaning back, his chest heaving, he looked up at her through the hair falling over his face.
It felt like there was fire in her blood, anticipation in the air so thick it could be felt by both as she stared at him. Crawling closer and standing on her slightly shaky legs and stared down at her mate. Her head felt like it was wrapped in cotton.
“Present,” it was unclear if the alpha was commanding or begging. Giyuu’s brow furrowed, the hazy look in his eyes clearing slightly as he watched her, confused.
“I don’t…?” His voice was rough, no doubt his throat irritated from how much more noise than usual he was making.
Slowly, deliberately, Shinobu insistently pushed his shoulders backwards, her mate- ever so pliant (just for her)- leaned back until he was laid out on the ground beneath her. Eyes wide and bright as they stared up at her.
“Present,” the alpha growled a little more insistently, frustrated at the lack of innate understanding from the beta beneath her. Her small hands dug into his hips- the flesh already sporting a brilliant array of bruising from how tightly she kept gripping him- and in a surge of strength flipped him onto his stomach.
“Wha-?” He wheezed at the rough movement, unresisting. From behind, Shinobu could see how down to his shoulder blades he was flushing a brilliant red as she maneuvered him into her desired position, lifting his hips until his ass was in the air with his chest flush to the floor. Small tremors went through his slightly spread out thighs as he held himself up once more- this time, at least it wasn’t his entire body weight.
Gracelessly, Shinobu got to her feet and stood just behind him, her hardened cock curving up and rubbing against his slowly hardening dick. She petted the small of his back soothingly as the lightly sour scent of apprehension came from him. It was a shame, not being able to see his face like this, but admiring the way his spine curved and how his hair spilled across the pale expanse of his skin and the blankets beneath them like ink was worth it.
Shinobu admired the way her own release oozed out from him and was smeared all along his inner thighs. His scent drowned in her own. Giyuu tensed as she rested her hands on his hips, lining up her cock with his entrance. She bet she could slip it right in-what with the amount of come in his ass to slick things up.
With the last little bit of her self control she waited until the apprehension she could smell faded a bit more before pressing the tip of her dick against his hole. Pressing in slowly, the familiar wet warmth of his insides was a familiar and welcome feeling- the wet sounds of her cock sliding inside him broke the last thread of control she had before her rut finally reached its peak.
With a growl she snapped her hips forward- the alpha in her was extremely satisfied with the cry it pulled from Giyuu beneath her, even if it was muffled by him burying his face in his arms. The wet sound of skin slapping on skin and the broken moans of the beta beneath her were all she could focus on with the ringing in her ears- filled with a single minded desire to fill him up.
She pulled almost completely out before slamming back against him, cock unerringly hitting against that sweet spot inside him until he was moaning freely with each thrust. Slowly she became more and more hunched over him as something primal in her told her to just keep going, ignoring how Giyuu sobbed from overstimulation as he clenched around her once again as he climaxed.
“Alpha-! Alpha!” He cried out, and with that final yell Shinobu let out a snarl as she slammed her hips against a few more times- her knot scraping against his rim as it grew until it locked them together once more. She saw stars as she came, her release still oozing out even with her knot fully lodged in.
There was drool at the corner of her mouth as she stared at the expanse of Giyuu’s marked up back, his shoulders moving with each breath he made. His legs were trembling from the effort of holding himself up.
Shinobu finally lost the fight against her rut and she saw white.
Shinobu’s throat was dry when she woke up. She felt sticky with dried sweat and other fluids, and the lingering scent of sex and arousal saturated the air of the room they were in.
She only vaguely remembered flashes of the last bit of her rut. Tiredly, she turned to look at Giyuu who was completely out- absolutely covered in sweat, come and bruises as he lay deep asleep on the blankets beside her.
Shinobu pushed herself up to get a better look at Giyuu, gaze lingering between his legs at the absolute mess between them. That’d be fun to clean out later, she couldn’t help but smile at the thought. Her gaze continued to wander and it took her a moment to register what she was looking at.
She couldn’t tell if she was just imagining things or what, but with wide eyes she pressed her hand against his abdomen and could have sworn it looked-
“…what are you doing?” Giyuu’s voice sounded terrible, a dry rasp to it that made Shinobu’s own throat hurt in sympathy.
“How are you feeling?” She asked instead. Giyuu’s gaze drifted to look up at the ceiling, cheeks slowly darkening.
“I can’t feel my legs…” It took everything Shinobu had not to giggle at his flat tone. She looked up and down his body.
“Are you in any pain?”
“…no. Just… sore,” that was relieving to hear, at least. She hadn’t realized how hard her rut would hit at its peak and she only had hazy memories of the last stretch of it- but from the lack of blood in his scent she could at least take solace that she didn’t get too rough for him.
Sitting up, she scooted over towards his head, running her fingers through his thick hair. He looked up at her with tired eyes and gently pressed his head into her hand. It was nice, being able to just admire his condition without the molten burning of rut distracting her. He looked a little bit like he lost a fight with a wild animal from all the bruises on his neck, thighs and hips- not to mention the dried blood on his neck as well.
Looking around the room, she knew there were towels or rags somewhere that she could use to clean them both up as much as she could before Giyuu got enough feeling in his legs to actually make it to the bath and really clean up.
It didn’t take long to find them- they were almost in reach from where they were. As the only one of the two of them who actually had the energy to move about, she gently wiped down what she could off her mate- frowning at the noises of discomfort he made whenever she went over a particularly sensitive spot. Considering everything that just happened, she left the area between his thighs for later when they finally made it to the bath. The skin was, understandably, the most sensitive, and she would rather avoid unnecessary stress for him right now. She wiped herself down much quicker, wrinkling her nose at the state of the towel afterwards.
“Ah~ I think I’ll have to contact the master and ask for your leave to be extended for a few days,” she mused, a grin pulling at her lips as Giyuu closed his eyes and looked like he would much rather die.
While he may have taken solace that at least the other hashira didn’t know why they were on leave, Shinobu didn’t doubt they would figure it out as soon as they showed up for the next meeting. She wasn’t exactly subtle with her enthusiasm.
Shinobu returned to Giyuu’s side, basking in his faint scent as she pressed up against him, leeching warmth. She was going to take advantage of the time she had to just exist with him, and if she imagined a world without demons to live in with him, that was only for her to know.