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Night has fallen on Mondstat; the tavern is closed, the knights have put away their weapons from the day’s training, and Flora has closed up shop until the morning light returns. It’s so late, in fact, that even Acting Grand Master Jean has dragged herself to bed; you secretly hope a certain red-haired bartender was waiting for her, seeing as the tavern is closed, and she’s been especially stressed this week.
“So far, so good,” Kaeya murmurs, as you sneak together through the halls of the Knights of Favonius’s headquarters. Most of the rooms you pass appear dark, as they should be, but you both are particularly quiet while sneaking past any doors illuminated underneath.
Slinking along, you wonder if those doors hide the sort of activities you and Kaeya have planned for the evening. It would be silly, naïve even, to believe the knights never have any fun.
“You know,” Kaeya whispers, when you pause at a corner, “you never cease to surprise me.”
Kaeya’s comment is met with your mere, good-natured “hmpf” as he peeks around the corner. Standing behind him, you can’t help but cast a long, lustful gaze at his backside; the black pants don’t do it justice, and you find yourself suppressing an overwhelming urge to give it a “smack!”
Another time. You think he’d be up for it.
“I could get in a lot of trouble if anyone sees us,” he teases, tone tinged with the nonchalance and mischievousness of a person who knows they can get away with just about anything. Kaeya is renowned for his charm and silken tongue, and when you met, you thought yourself immune to those devices; that was not the case, but it’s no longer a bother. He drinks at the tavern, and you drink heady charm from his mouth, but you’re the only one, now, that gets to enjoy that drink.
You both reach the door to the Grand Master’s office and open it; the door doesn’t creak, much to your relief. Though the main hall is deserted, Lisa is known to stay up late and indulge in her studies then fall asleep or nap at her desk, and she has a sharp enough ear to hear any creaky doors so close to the library. What would she think if she walked in on you? Something about her mannerisms makes you think she wouldn’t exactly recoil in horror, but perhaps this theory is built on another theory: she and Kaeya have slept together. You have no proof.
The Grand Master’s office is dark, aside from the moonlight pouring in through the windows, and Jean’s desk is exceptionally organized, though many items are piled on it. Upon seeing the desk and recalling your conversations with her in the daylight hours, you make a mental note to get an early start on commissions tomorrow, if for no other reason than to allow her to focus on more pressing matters than locating runaway cats.
Kaeya slowly shuts the door then steps behind you and rubs your shoulders, almost in the nature of a massage. You tilt your head back to meet his lips for short, playful kiss, but even something so light and innocent is clearly enough to get him going, because he then snakes his hands to your chest and brazenly squeezes.
“Actually, I take back my previous statement,” he murmurs, as he massages your chest and slips one hand under your shirt, “you do often surprise me, but I wasn’t entirely surprised when my naughty girl told me she wanted to do this,” he continues, flirty as always. “Ever since your request at Albedo’s camp on Dragonspine, I’ve been thinking about just how naughty you might be.” You offer another playful “hmpf” and press yourself back against Kaeya’s partially-exposed chest, much to his delight. Reflexively, he squeezes your breast.
You both move toward the desk, quickly settling so you are sitting on the desk, legs suggestively spread just enough for Kaeya to stand between them. He rubs your thighs and pushes your skirt up, pausing briefly to remove the candelabra and gyroscope from the desk and set them on the floor. You’ll try not to mess up the desk, generally, but certainly would not want to break Jean’s belongings to start with.
His lips meet yours in a deep kiss, which momentarily distracts you from the sensation of Kaeya sliding your underwear off and jerking them over your shoes. He stows them in his pocket. Kaeya removes his gloves and stashes them as well, then makes quick work of his crisscrossed belt and scabbard. While his gloves could be and should be washed after this evening, it’s better that they show traces only of dirt and the like when they’re sent to laundry, lest Noelle or another maid catch on to Sir Kaeya’s after-hours activities. You stifle a laugh at the mental image of Noelle with her hands over her mouth and her eyes full of concern, apologizing for any intrusion, though she hasn’t done anything wrong; surely, she and the other maids are aware of Sir Kaeya’s reputation, but it’s unlikely they’d ever make mention of it, except among themselves.
As the clinking sound of Kaeya’s belt meshes with now deeper breaths, you open your legs to him, and Kaeya sighs into your mouth at the slick his fingers find between your legs. This has long been a fantasy, and it’s obvious.
“Really?” Kaeya whispers, as he brings his fingers to his mouth, wiggling them to show you the sticky fluid before licking his fingers clean; your face goes hot, and you resist the urge to swat his hand away. He seems to ponder the taste for a few moments, but you know he’s putting on a show and already knows his next move. “Better than wine. I want more of that. May I?” You let out a quiet whimper and shake your head in the affirmative, offering quick, frantic little nods so he won’t keep you waiting. He chuckles and gets on his knees then demonstrates his utter ravenousness by forsaking any kisses or nibbles in favor of burying his face between your legs.
One would think he’d been starved for days. You clasp your hand over your mouth, stifling the gasp that has escaped your lips, then avert your gaze entirely from Kaeya and shut your eyes. Both seeing and hearing him tongue you is entirely too much to handle if you’re going to keep quiet.
Kaeya licks and laps at you until you are biting your arm, barely stifling gasps and moans that grow louder with each flick and slow lick of his tongue. He sinks his nails into your thighs, as if to remind you that he’s the source of your pleasure, and when you start to squirm and just as your teeth bring genuine pain to your flesh, Kaeya abruptly ceases his ministrations on your sex and rises to plant a sloppy, wet kiss on your cheek.
At times, your liaisons end here, more specifically after Kaeya makes you come and leaves you a soaked, sloppy doll on his sheets. Sometimes, you reciprocate (and are happy to do so), but sometimes you just fall asleep together or, if it’s early enough in the day, get dressed and stop by Good Hunter for a snack. This is not one of those times.
Presently, Kaeya pulls your arm away from your mouth and places your hand on his obvious bulge. The fabric of his pants strains against his erection, and you briefly wonder if this sort of flaunting display is the reason he wears such tightly-fitting pants.
“You’ll hurt yourself if you keep doing that,” he murmurs, wet lips that glisten with your slick right at your ear. “I can’t have you walking around looking like you got in a rough fight with a rifthound.” You squeeze his bulge in response, feigning a pouty affect and drawing a profane groan from deep in his throat. You play with his lovelock as Kaeya stares your down, as if daring you to yank on it or thrust your hips forward and grind against him. “What would the other knights say if they saw you injured while in my company?”
Answerless, he waits no longer to pull down his pants and underwear then bring his fingers back to your sex, rubbing circles on your clit and nearly flat-out laughing at the gasping whine that escapes you. Without meaning to do so, you twist his hair and grab at his shoulder, begging with your gaze that he just go ahead and fuck you silly.
“You,” he murmurs, lips ghosting over your cheek and ear, “are a naughty girl.” Kaeya rubs his cock against your dripping slit, chuckling at the way you desperately squirm at his teasing. “I think,” he continues, pressing harder without sliding in, “you want to get caught. You want somebody to walk in and see you getting railed by yours truly. What would the other knights think if they saw us here? If they saw their so honorable Cavalry Captain doing such lascivious things?”
“I don’t care!” you whisper-shout, twisting his hair around your fist and meeting his gaze. Kaeya seems momentarily shocked at your exclamation but quickly recovers his charming façade and presses harder still, just shy of sliding in and sending you spinning. “Please…” you whimper, pouting, loosening your grip on his hair.
With an impish chuckle, Kaeya slides in, inch by inch, groaning at the tight, wet pressure of your pussy on his cock and the sharp pain from your sudden reactionary yanking of his hair. Even when the two of you get rough, he always starts out slow, only in part because it would hurt if he just rammed his cock in, given the size. Kaeya is much more the romantic than meets the eye, and that’s not exactly the sort of reputation he has in Mondstat.
He stills when he’s completely inside you and brings one hand to the small of your back. You’re both panting already but neither care nor attempt to quiet down. You clench around his cock, unable to control yourself and feeling so exhilarated from the setting and full of him you want to shout about it with the filthy little mouth he adores, but this is not the time or place. He kisses you, squeezes your back, nips at your ear, and you know if you were somewhere a bit more private, he’d be moaning your name with abandon.
Kaeya leans away, grabs at your waist with one hand, and braces himself against the Grand Master’s desk with the other.
“I – ah – you, hngh,” he whispers, words scattered among staccato sighs. Something within beginning to fray; Kaeya looks directly into your eyes, his own eye alight with frozen fire and seeming to sparkle in the moonlight. “I –just let – ah – me fuck you.” You nod vigorously in agreement, somewhat smugly, then release his hair and lean back on your hands. You are quite aware of the affect you have on Kaeya; it seems that a Cryo Vision isn’t enough to cool down his drive.
Kaeya begins to thrust, leisurely, excruciatingly so, without ever entirely removing himself. The slow slide of his cock makes you clench hard, harder, until your pussy is clamped on him and your legs are spread as widely as you can muster. His cock goes deep, deeper, until it rubs something incredible and something else still more incredible when he withdraws. This man knows your body like the back of his Vision, after all. When he pulls out, you whine thinly, but he rubs the head of his cock against your pulsing clit and quickly gets you to moan.
“Fuck…” he hisses, as he slides in, again. You accept him more easily now, given that you’re wetter than even you thought possible, than you were on Dragonspine, and your head begins to spin as your climax builds. Kaeya’s low, needy sighs resonate through your consciousness, and even the darkened ceiling seems to spin when you throw your head back. Panting open-mouthed, you bring your fingers to your swollen clit and rub it frantically, inching closer to the edge, closer to the cliff, closer to that blissful, sweat-laden fall through space when you’re flooded with hormones and the world goes white.
“Kaeya!” you call out, a little too loudly for this time of night, “I-”
“Come – ah – whenever you want to,” he croons into your chest, then pulling you up and pressing himself against you, so that your face is buried in the space between his neck and collarbone. “Yes” becomes the only word in your vocabulary, and you babble it senselessly into Kaeya’s fur collar, which is uncomfortably hot against your flushed face. Lips pressed into a thin line and jaw clenched, you claw at his back and rock your hips into his thrusts, rubbing that spot over and over, building and building – fuck, he feels good…so good…
“Fuck! Fuck!” you scream through gritted teeth and into Kaeya’s shoulder. Hopefully, the fur provided some sound dampening effect. Moaning and sighing in low tones, you go limp against him, feeling the aftershocks of your orgasm roll through your body and senses swimming with the earthy smell of Kaeya’s sweat and a tingling radiating from the bite on your arm. He firmly grabs your upper back to prevent you from falling backward and hitting your head.
Kaeya buries himself deep inside you and ceases thrusting, allowing you both to catch your breath and drink in the moment. He’s still hard and noticeably throbs in your tightening sex as you come down from your high. A few mental threads must be all Kaeya has holding his self-restraint, at this point.
‘You,” he whispers, still panting but with that familiar flirty tone in his voice, “are the sexiest woman in Teyvat.” A grin and blush spread across your face, and you’re grateful that Kaeya can’t see the results of his flattery in the darkened room; he’s arrogant enough as it is.
“Mhmm.” Kaeya chuckles and pulls away; though his laugh is casual, his gaze is wild.
“We’re not done, now are we?” You shake your head in the negative and let out a frustrated gasp when he pulls out, his cock glistening with your fluids in the moonlight. Gently, he takes you by the waist and flips you over then pushes your skirt up and exposes your ass. He doesn’t say anything about it, but you don’t miss the sharp inhale pulled from his mouth at the sight.
With his own naughty snicker, Kaeya slides in, giving you again that full feeling, and leans over you, pressing you tightly against the desk, and then begins to grind against your ass. When you stretch your arms out in front of you to grab at the edge of the desk, as their being pinned under your chest is painful, Kaeya takes your hands in his and pulls them back, leaving your fingers laced with his on each side of your neck, and shifts from grinding into small thrusts. He sighs affectionately into your hair but soon begins to pant and moan as he picks up the pace; that thread is soon to break.
“Naughty girl,” he coos, breathlessly, winding the fingers of one hand through your hair and grabbing your ass with the other, “it doesn’t – ah – matter how I fuck you, hmm? You take my cock just how I want. You know…” As if to underscore that statement, you wiggle your ass and snicker at the gasp this elicits. He twists your hair and jerks your head up, earning a yelp and forcing a sharp arch in your back that is entirely delightful.
Kaeya growls, and his thrusts turn harsh, deep, the sort that bring the cacophonous sounds of flesh slapping flesh to the room. He groans, grunts, releases your hair as that thread snaps and he chases his orgasm, leaving you grasping at the desk for purchase and turning back to biting your arm to quiet screams of pleasure.
“Yes, yes – ah – fuck! Oh, fuck…” His rhythm shatters and his cock pulses in you, filling you with his release and leaving you both slumped over the desk, breathing ragged and shirts plastered to your skin. His lovelock falls aside your head and is beautifully highlighted by the moonlight; you want to play with it again but are simply too weak.
Though you already know there will be quite a mess, you still shake your head when Kaeya pulls out and an awfully lot of white starts to run down your leg. He chuckles and tosses your underwear over, along with a handkerchief monogrammed with the Favonius Knights’ crest.
“What’s wrong? Can’t handle the come?” You roll your eyes in response as you both re-dress and attempt to re-set the Grand Master’s desk. Maybe Jean won’t notice; the desk does look remarkably similar to its appearance prior to this liaison.
Afterwards, Kaeya carefully cracks open the door and looks around the main hall, which is empty. No lights are visible under the doors to the library, so now seems as good a time as any to sneak back to Kaeya’s quarters. Wearily, legs shaky and hair undoubtedly mussed, you follow him up and down the halls, never seeing anybody else and rarely hearing any sounds coming from other rooms, and once you reach his quarters, you excuse yourself to clean yourself up while Kaeya reclines naked on his bed.
You’re both sticky and sweaty but too tired to care, so you do your best to wipe away the liquid lust and then snuggle naked under the covers with Kaeya. His bare chest rises and falls slowly under your cheek, which is comforting and begins to lull you to sleep.
“Tired?”
“Mhmm.”
He doesn’t say anything for a few moments, but it’s obvious he wants to; his breathing quickens, and he begins to rub your back.
“When I’m with you,” he murmurs, unprompted and honestly, “something in me snaps. It’s like you intoxicate me, and when I’ve had that taste, I can’t get enough.” Such is not news; you’d like to hear the rest.
“Oh?”
“I…well, I know you’ve heard things about me, and you shouldn’t believe all those things.” His hand stills. “So, if you’ve heard that about me, that I have those feelings, with regard to somebody else, you shouldn’t believe it.” Your heart swells; he pauses then moves his hand to your hair. “Anyway, I need to do some training tomorrow. You want to come along and try horseback archery?”
“I’d like that.”
Kaeya kisses you sweetly and wraps his arms around you before drifting off to sleep. It’ll be dreadfully difficult to pry yourself out of Kaeya’s bed in a few hours for an early start on commissions, but Jean really needs the help.
Besides, it’s the least you can do after having so much fun in her office.