A/N: Can't believe it took me this long to finally lewd Koyori. My apologies~
Hope you enjoy~
Love Is In The Air
Working in a laboratory could be hectic at times. Doubly so when your boss was Hakui Koyori.
Science experiments went awry as dangerous chemicals were introduced on a whim, recipes were more passing suggestions than strict guidelines, and getting the coyote-girl to actually take things seriously was a task in and of itself. That wasn't to say it wasn't possible, and when she really put her mind to something Koyori's frightening intelligence and eye for efficiency made itself known... but unless something really roused her interest, then she was pretty lackadaisical about little things like 'health and safety' and 'workplace behaviour'.
One young man by the name of Edwin found himself experiencing that quite acutely, hurriedly running back and forth between two separate experiments and making sure nothing went wrong. His eyes feverishly tracked the glass tubes that curled and winded about, seeping away the impurities in the formula and sending it off elsewhere whilst the deep red solution gradually dripped down into a waiting vial over to the right. In the background he could see Koyori moving about at a much more sedated pace, doing the same thing but with her myriad of glass tubes slowly dripping a white solution into a vial.
''Assistant-kun, how much longer?'' Koyori casually called out, taking her eyes off the experiment.
Edwin sorely wanted to tell her to not do that, as something could go wrong, but he knew better than to correct his boss. ''Nearly there. I think about another thirty seconds?''
''Alright~ Turn off the pressure valves now; once it's filled the excess will vent out into the vat under the worktop~''
Nodding slightly Erwin went and did as she said, watching as the deep red solution continued to drip down into the vial – and, true to her word, when it was filled the excess liquid dripped into an adjacent tube that led into the desk itself where harmful waste could be disposed of later. He waited until all the red liquid in the system of tubes was gone, and once it was clear and the pressure back to normal he disconnected the red vial and popped a cork in the top, hurrying over to Koyori just as the coyote-girl took her own white vial.
''Here.'' He said, handing it over.
Chirping her thanks Koyori ferried both vials over to a glass beaker on another worktop, tossing the cork out of the deep red vial before pouring both liquids into the beaker at once. The deep red mixed with the pure white to form a reddish-pink fluid, the hue constantly changing as the two colours mixed – ranging from blood red to pale pink. Once both vials were emptied Koyori dipped a metal stick inside the beaker and used it to stir the two fluids about, soon mixing the formula until it was a deep pink colour.
The concoction wasn't any ordinary one – rather, it was a love potion, one designed per Chloe's request for use on a 'friend' of hers. Though to call it a love potion was perhaps a bit of an overstatement, as it was closer to a potent aphrodisiac than a true love potion, but Koyori certainly wasn't correcting her teammate. Not when she was being paid a bunch for crafting it, allowing her more funds to research her own interests.
''And~ there.'' Koyori casually tossed the two vials over her shoulders towards the sink – had Edwin not hurriedly reached out and grabbed them mid-flight, putting them down more carefully into the metal sink. He'd never seen them smash from such an impact, but one could never be too careful in a magical laboratory.
That done Edwin sighed and leaned against the desk opposite her, just taking the chance to breathe now that the hardest part of the experiment was over – one wrong move and the solution could be rendered unusable or, worse, explosive due to the compounds involved. His gaze swept over the wide laboratory around them, noting that the white-tiled walls were still stained black with previous explosions that Chloe hadn't cleaned up yet due to being busy with missions. Turns out 'cleaner' meant being both a field agent, and a literal janitor.
She was understandably more excited for one role than the other. Probably why she took so many missions; so she didn't have to mop the floors of Laplus's secret base for days on end only to have someone trudge inside with muddy shoes again.
Movement from Koyori distracted Edwin from his idle musings, his gaze refocusing on the pink-haired coyote-girl as she approached. ''Heh. Daydreaming already, Assistant-kun~? We've still got plenty of experiments to undertake today~''
''Huh? I thought this was the last one?''
''Nope~ We've still gotta figure out how to transform a gecko into a dragon, finish the formulas for the invisibility potion so I can prank Iroha a bunch, and build that box of tentacles for Marine-senpai!''
The two scientists continued to chatter on with one another, so engrossed in their heated conversation that neither of them noticed the beaker of pink fluid bubble and boil; the compounds within flaring as they reacted with one another in unanticipated ways. The glass cracked near the base as the temperature soared, the heat pushing the liquid up and transforming it from liquid to gas – when Koyori finally noticed something amiss.
''Huh? Oh crap-!''
With a loud, hiss-like sound the concoction abruptly erupted – spewing liquid skyward and splattering across the ceiling. The majority of the liquid however evaporated entirely, spreading out across the entire laboratory in a thin but omnipresent pink mist, faint specks of yellow granules floating down from where the concoction had crystallised from the intense heat. The two scientists also weren't spared from the sudden explosion either.
''Ugh...'' Rubbing his head Edwin waved a hand about in some half-hearted attempt to dispel the light mist that hung around his face, though thankfully he could breathe still – it didn't contain any toxic chemicals, though he was mindful not to breathe in too much if he could help it to be on the safe side.
He was slumped against the workstation behind him, the brief daze that held its grip over his mind quickly fading. The thin mist lessened as well as most of the airborne material settled on work surfaces, the floor and even on the lights; however Edwin's attention wasn't on his surroundings. Rather, it was on the pink-haired scientist slumped against him, head in his chest and coyote ears twitching erratically.
''Koyori...?'' The young man murmured, grasping her shoulders and lifting her up. ''Are you alright?''
''Mm? Yeah, just a bit dizzy...'' Koyori mumbled back, wiping at her eyes and meeting his gaze. ''You're not hurt are you?''
''No. Just a sore back at worst.'' Edwin responded, sitting a little more upright. ''We should be fine, right?''
''Hm? Oh, yeah, the stuff isn't dangerous. Wouldn't be an aphrodisiac if it was.'' Despite her light tone Koyori never broke eye contact with him, unconsciously shifting closer to him. ''It's fine to... breathe it in, yes...''
Edwin murmured an agreement but couldn't find it in him to look away from Koyori, vaguely aware of the heat creeping across his cheeks – matching the rosy blush on Koyori's face. His body felt so very hot and having Koyori practically on his lap only worsened the heat, not helped when the aforementioned coyote-girl climbed further onto it, hands settling on his shoulders. Unbeknownst to either of them the airborne concoction retained its aphrodisiac properties... properties which were now effecting the duo.
As such when they were sat so very close together, every exhaled breath mixing between them and tempting them ever closer, the urges within them spiked – and faster than he could blink Koyori darted in and kissed him. A rush of heat flooded his face and Edwin shuddered, kissing her back with equal fervour, pushing his lips against hers and groaning when she snaked her arms around his neck; her large, soft breasts squishing against his chest.
Breasts he soon felt up; both hands sliding up her exposed midriff and up her shirt, his hands cupping her large boobs from below. They felt as soft as he'd imagined they'd be, squishing beneath his fingers as he eagerly groped and squeezed them, each little motion coaxing a moan out of the Koyori and enticing her to shove her tongue into his mouth, his own pushing to meet hers and tongue-wrestling with the coyote-girl.
''Mmph, ahh, Edwin-kun~'' Koyori mewled against his lips.
Grunting her name the young man manhandled her breasts, his thumbs sliding over her nipples vigorously even as Koyori herself started rocking her hips – grinding her crotch against his. The slight friction turned him on more than expected and his own hips instinctively bucked up, rubbing himself against her crotch. She moaned, pushing down more firmly and fuelling the fire burning in them both, neither caring anymore about the experiment or the mess that needed cleaning up.
Breaking off the French kiss the young man leaned back momentarily – before grabbing the hem of her top and pulling it up. Even in her aroused state Koyori squeaked at his boldness; her plump breasts bared to him and enticing the young man to immediately bury his face between them, motor-boating Koyori even as he planted a slew of kisses upon her flesh. The coyote-girl whined like a bitch in heat, her hips moving more vigorously and hurriedly trying to undo his belt, the act made more difficult when both of them were currently thrusting their hips.
It spoke to her skill then that despite that, she managed to get it undone. ''E-Edwin-kun, gimme a second~''
Groaning reluctant agreement Edwin pulled his face from between her nice, soft tits – only for his lips to be claimed in a sudden kiss. His shock passed swiftly and he reciprocated a split-second later, groaning into Koyori's mouth as the pink-haired scientist undid his pants; prompting him to push them down to his knees. His boxers came unbuttoned as well, allowing his achingly-hard cock to spring out.
Koyori sat up on her knees in an instant, her right hand going under her and ripping a hole in her pantyhose, torn seams frayed and some holes forming around the main one, but in that moment neither of them cared about the damage to her clothes. Least of all Edwin who's gaze was locked onto her pussy, arousal making her a little wet already – a fact intimately felt when Koyori straddled his cock and rubbed the tip along her slit, both of them moaning at how good the little bit of friction felt.
''Koyori, please...'' The young man groaned, all but begging.
Koyori didn't tease nor delay; flashing him a breathless smile, one hand holding her skirt up whilst her other guided his cock to her entrance, the tip sinking between her puffy lips-
-and as one they moaned as she sunk down onto his cock. Just pushing inside her fried his mind; white-hot pleasure lancing down his shaft like lightning as her searing walls clamped down on his cock. Koyori didn't take it slow nor bit by bit; instead grasping his shoulders and shoving herself down deep, a little gasp preluding the throaty whine as she tipped her head back, her hips jerking her up-and-down his cock in quick, desperate movements.
Up until Edwin grabbed her hips and helped her move, groaning in tandem with her as he felt his cock sink into her blissfully-tight tunnel. Just being inside her was heavenly but feeling her move up-and-down his length, her walls clinging to his shaft or even squeezing tighter before relaxing slightly, felt so much more intense. To the point that his own hips started moving to match her pace, both of them grunting and groaning as he plunged up into her tight pussy.
''Hyaah, Assistant-kun~'' Koyori mewled, mashing her mouth against his in a rough, messy kiss.
The young man reciprocated wholeheartedly, shudders of arousal travelling through him as he kept working his hips, never quite sure where to put his hands. He held her hips to steady her, groped her shapely ass and thighs, tickled his hands up her back or groped her sizeable breasts, each option being equally as enticing. In the end he grabbed her waist and just focused on jamming his cock up into her tight womanhood, moans spilling out past his lips in the brief moments they weren't kissing.
Until soon having her jam herself down onto his cock wasn't enough, tempting his hands onto her ass – before he slid up the desk behind him, rising to his feet. Koyori squeaked, her inner walls clenching like a vice around his cock and her legs snaking around his waist on instinct alone, preventing her from falling as he carried her the short few steps to the nearest desk and shoving her against it, letting his 'boss' lean against the edge.
''Assistant-k- uun~!'' Koyori wailed with pleasure as he suddenly began to thrust, and did so with force – pounding her raw.
The loud, fleshy smacks echoed off of the walls and rung in their ears, the sound of sex filling the laboratory without relent. The young man had no intentions of slowing either, gasps escaping him as he plunged himself into her blissful tunnel, feeling her insides smother his cock like the snuggest, warmest of vices. Any such thoughts were put on-hold though as Koyori grabbed the back of his head and yanked him down into a heated kiss, both of them moaning lustfully into it as he continued stirring her pussy up with every vigorous thrust.
Pressure swelled at the base of his cock as he went balls-deep in Koyori again and again, the hot pressure rapidly progressing up his cock and begging for release. Edwin held it back, groaning into Koyori's mouth as he kept fucking her, but his muscles refused to obey – not helped with how blissfully hot her inner walls felt as they gripped and squeezed his cock, wringing a slew of moans from his throat and leaving him teetering on the edge.
One that he was pushed over as Koyori squealed, tightened – and with a sharp grunt Edwin slammed inside her and came.
''Mn!'' Burying himself up to the hilt the young man blew his load between her walls, shuddering in pure bliss as he emptied his load deep inside her hot tunnel, feeling her tightening walls practically massage his load out, every throb of his dick preluding another thick spurt he'd paint her insides with.
How long their orgasms lasted neither knew, only that they came crashing down from their highs moments later; twin moans escaping them as pleasant aftershocks twitched through then. He moved back then, pulling out of her pussy and causing a thick dribble of white to quickly leak out; dripping down between her limp legs as they fell down from his waist; slowly forming a puddle on the floor, small as it was.
Their orgasms cleared their minds somewhat, coherency returning to them. Edwin himself gazed at Koyori in a new light, embarrassment curling in his throat along with a tinge of mortification, simultaneously ashamed he'd gone wild with lust... but also a little satisfied, if he was being honest with himself. It was the single most intense thing he'd done in his life and hell if it hadn't felt amazing to bust his load inside a girl as pretty as Koyori.
Koyori seemed to be of a similar mind. ''So uh... that was a thing?''
''Yeah.'' Edwin looked off to one side. ''Listen, uh, sorry-''
''Sorry?'' Koyori cutely frowned. ''Did you not enjoy it?''
''No, no I did! I just...'' Edwin made an incomprehensible gesture, before just hanging his arms by his sides with a sigh. ''It was all heat of the moment, you know? I didn't intend to... do that, to you.''
Understanding flashed across Koyori's visage, her frown melting into a slight, daresay mischievous smile. ''Mm, well I quite liked it, Assistant-kun~ After all, you're my favourite person in the whole world, y'know~?''
''H-Huh? I am?''
''Yup~'' Pushing herself off of the desk Koyori snaked her arms around him, her forehead coming to rest against his. ''You're my special little assistant, and like heck I'm letting you get away~''
Then without another word she closed the miniscule distance between them, sealing her lips against hers. Edwin shuddered, leftover lust reigniting in an instant and enticing him to push Koyori back up against the desk, returning the kiss with force. She smiled into it, a little moan escaping her when he grabbed her pantyhose-clad ass and nearly picked her up – had she not squirmed out of his grip. Breaking off the kiss Koyori flashed him a coy smile and turned over so her ass was facing him; bending herself over the desk before her and presenting herself to him.
Edwin needed no further enticing than that, one hand on his cock and guiding him to her glistening pussy lips – lips that were spread apart by two fingers, allowing the tip of his cock to press against her entrance-
-and Koyori howled with pleasure as he plunged inside her all at once, his girth burying itself up to the hilt inside her on the first go. Edwin gasped at the sudden rush of heat that flooded his cock but he didn't stop to savour it; gripping Koyori's hips with both hands and immediately starting to pound her, his cock sliding into her sopping-wet pussy and his pelvis clapping her ass repeatedly.
''H-Hya~! That's it~!'' Koyori cried out at the top of her lungs.
Aroused by her shrill wail Edwin reaffirmed his hold on her, grunts bubbling up past his lips as he pounded the coyote-girl from behind – the sound of smacking flesh flooding the laboratory. Her pussy felt so good he lost himself in the sensation of her walls clinging to his cock, every tight squeeze or grip sending pulses of pleasure running through him, so raw and intense he was half-tempted to just bury himself up to the hilt and go still, to enjoy the dripping warmth that strangled his cock.
He was distracted from such a thought though as Koyori's tail tickled his stomach, swishing and sliding over his clothed abdomen and swishing further up, the very tip tickling his chin. In response the young man reached down to the small hole in the back of her skirt and grabbed it, eliciting a high-pitched squeak from Koyori that escalated into a squeal when he kept pounding her – tugging on the sensitive base of her tail throughout.
''M-Mm! Ah, my tail is- ahn~! Sensitive, it's sensitive, no tug- kya~!'' Any attempts at scolding him were ruined when she kept yelping and squealing every other breathe; her heels raising off the floor and her knees pushing together on instinct.
''Hah, Koyori, I can't hold on...'' The young man groaned, his other hand running up her front and groping at her right breast.
''Mn, not yet~'' She mewled, making an effort to push herself back and impale herself onto his swollen length – whimpering with pleasure the whole while.
In response Edwin released the base of her tail and grabbed both her breasts from behind, squeezing her soft tits and kissing her cheek. Tilting her head Koyori met his lips in a heated over-the-shoulder kiss, one made a bit messy as their movements separated them multiple times over, but without a care they kept doing it; their bodies smacking together heatedly and granting them unending pleasure. Or so it seemed at first.
The constant movements coupled with both their waning stamina and the potent aphrodisiac in the air sapped their stamina away, both of them struggling to hold on, to keep experiencing the ever-building rush. Edwin least of all; groans escaping the young man as he pounded away at his boss-turned-lover, feeling the sticky load inside her be stirred up, some even leaking out as if to make room for the next load he was going to pump in her.
The thought proved too much for him to handle. ''Shit, cum- mn!''
He just barely managed to slam all the way in before he came; unloading a thick torrent of cum across Koyori's walls and pumped it directly into her womb – the overwhelming rush pushing Koyori to her own climax. Her howl of pleasure bounced off of the walls, muffled only partially when he covered her mouth; his own grunting gasps audible as he kept feverishly pumping into her ungodly-tight pussy, their movements quickly becoming ragged and rough.
Until with a final grunt he went still in her, shuddering as he emptied the last of his load. For a cosy minute they remained in the position, panting and shifting – a coo escaping Koyori when he nuzzled her nape, prompting her to tickle his stomach with her tail in return.
Only after the afterglow faded did they part; his cock slipping out and allowing a thick dollop of cum to spill from her creampied sex.
''Myn~'' Mewling appreciatively at the feeling Koyori stumbled slightly as she turned to face him; leaning back against the desk for support. ''Heh... you're still excited~''
Punctuating that Koyori reached down and flicked the tip of his still-erect cock, sending a shiver through the young man and also bringing a dark blush to his cheeks, a sheepish smile twitching across his lips. Koyori just giggled, closing the distance between them and snaking her arms around his neck, pulling him down with her to the floor. It was cold and laden with bits of crystallised aphrodisiac but they paid it no mind; their lips mashing together in a passionate kiss.
Then the moment they broke it off Koyori parted her legs, letting Edwin between them, his cock guided between two fingers to her sopping sex – and a unified moan escaped them as he buried himself in deep in the very first thrust. The second one got him in all the way, his hands planting on either side of her as he quickly picked up speed; plunging himself into the coyote-girl with lustful vigour.
''Mm! Ah~! Ahn- mmph~!''
Koyori's delighted cries were muffled as Edwin dove down; mashing their mouths together and melting her voice down into a cute whine. Her lithe legs wrapped around his hips and her feet locked behind his ass, pulling him into her eagerly and yelping when his pelvis rubbed up against her clit, the harsh rub sending jolts of bliss through her. Noticing that Edwin did it more, groaning into her mouth as she clamped ever so tightly around his length like she was trying to strangle it; only encouraging him to hammer her faster.
Her furry pink tail wrapped itself around his left thigh lovingly, some hairs tickling his balls and making him groan into her mouth; the thought of delivering yet another creampie fuelling his lust to new heights. Helping that was the lewd stickiness that clung to his shaft as he pistoned in-and-out of Koyori, their mixed fluids escaping around his shaft as he plunged himself deep inside her again and again, filling her relentlessly.
Breaking off the kiss the young man inhaled a quick breath, moaning it out a second later as he kept pumping into Koyori – rolling his lower half at just the right angle to thrust in her and grind against her clit at the same time. He was rewarded with a high-pitched mewl from Koyori, her nails pressing down on his upper-back as she clutched onto him, her thighs rubbing his hips as he slammed inside her and practically begging for more.
''Hya~! More, g-gimme more!'' Koyori cried out – the sound soon cut short when he dove in and kissed her once more, devouring her sweet moan and making her wrap her arms around his nape, pulling his body down against hers.
Doing it missionary, their sweaty skin flush together and his shaft hurriedly slamming inside her pussy; all of it felt so heavenly Edwin stopped thinking entirely, focused on naught but fucking the horny coyote-girl under him. He was rewarded with a shrill squeal from Koyori, ringing off the walls so loudly he wouldn't be surprised if the other residents of the secret base overheard. He didn't care though, losing himself in his newfound lover.
However after two back-to-back orgasms his stamina was nearing its limit, doubly so when Koyori started crying out his name – the quivering pitch sending a rush through him-
-before with a sharp grunt the young man slammed inside Koyori, busting a third load inside the coyote-girl. She squealed, her back arching suddenly and sharply, fingers curling into fists against his back – before she flopped flat against the floor, writhing with orgasmic pleasure. He kept moving as he came, each thrust harder than the last as he kept spurting his load inside her.
Until eventually his orgasm waned, and Edwin collapsed atop Koyori with a breathless moan, burying his face into her neck.
''Hah... haah...''
The sound of their mutual breathing was the only sound in the otherwise silent bedroom, the two of them limp as they just regained their strength. In the end it was Koyori who caught her breath first; pushing him off her and allowing them both to sit upright, panting but not gasping for breath.
''Mm...'' Reaching down to her belt Koyori plucked up a green vial and handed it to him. ''Drink this.''
Curious but knowing she wouldn't hurt him Edwin complied, uncorking the vial and drinking the contents down to the last drop. Within seconds a warmth spread through his body, the aches disappearing as his stamina was restored and his fatigue abated. A stamina potion.
''Hehe, it worked. Good~'' Purring Koyori wasted little time climbing on top of him, positioning herself above his length. ''Let's have lots of fun, Edwin-kun~''
Then without another word said she dropped herself down his cock, and they kept fucking until early in the morning, sore but satisfied.
[END]