SUPPLY AND DEMAND
RATED M
CHAPTER ONE
He's teasing her.
She isn't sure whether it's intentional, or if it's just his normal personality. But regardless, he's had a twinkle in his eye the entire game, even when she beats his straight with a straight flush and wins all the gummy bears.
He demands a rematch, of course, and then a final tiebreaker round when he wins.
"Your deal," she informs him, handing him the deck of cards.
His fingers brush against hers when he takes the cards, and she shivers at the contact, at the sparks that shoot up her arm. Her eyes lift to meet his, and for a brief moment, she wonders if he felt it too, or if it was her imagination. When he smirks and winks, she feels her face warm, and she jerks her hand back and reaches for the gummy bears.
As soon as she sees the two aces in her hand, she knows she has him. She keeps her face neutral, though, simply stares at him as he examines his own cards.
"Well, Detective," Castle drawls, "your move."
Kate narrows her eyes, trying to read him. She hasn't noticed any rogue veins or eyebrow twitches, nothing that could be an obvious tell, so she picks up a gummy bear, rubs it between her thumb and forefinger before grabbing another, and drops them both on the table between them.
Castle props his elbow on the table, hooking his pointer finger under his chin as he gazes at Kate's face-down cards. "Bold move," he comments.
She quirks an eyebrow. "Does that mean you fold?" she teases, challenging him. He won't; it's too early in the round, but his pride wouldn't let him anyway, that much she knows.
Castle smirks and tosses two gummies onto hers. "Call. Ready?" When she nods, he turns over three cards, places them on the table.
It takes Kate every ounce of self-control not to react when she sees a king, a ten, and a third ace. There are still two more cards to deal, but she thinks her odds are pretty decent that she has a winning hand, especially when she notices the slight downturn of Castle's mouth.
Finally, the countless hours spent interrogating suspects, reading the slightest changes in body language, comes in handy.
She throws four more gummy bears on the pile and leans back in her chair, examining Castle as he contemplates.
He lifts the corners of his cards again, glances back and forth between them and the cards on the table.
"Time's ticking, Castle," she teases, nudging his foot with hers. "If you need to fold, just fold. I won't hold it against you."
Castle glances at her, then adds four of his gummy bears. "Call."
When he turns over the next card, revealing the fourth ace, Kate notices him frown even more, and she has to bite the inside of her cheek to stop herself from smiling. There are few hands that can beat four-of-a-kind, but unless Castle manages a full house, she has this one in the bag.
"I'm all in," she announces, pushing the rest of her gummies between them.
Castle raises his brows and straightens his shoulders. "Oh?"
"Don't tell me you can't afford it."
"Well…" Castle adds his gummies to hers and leans forward, folds his hands together. "I'll tell you what, let's sweeten the pot."
She mirrors his pose, her eyes locked on his. "What do you have in mind?" Her tongue darts out to wet her bottom lip, and Castle's eyes darken when they flick to her mouth.
He clears his throat and meets her eyes again. "If I win, I get to take you out on a date," he offers.
"And if I win?"
"I will do whatever you want."
Kate crosses her arms. Interesting proposal. "Whatever I want, as in…" She trails off, waits for him to clarify.
Castle's eyes flick to her mouth once again, his message more than clear. "I'll grant you one wish, Beckett."
Kate feels arousal flood through her, the slight tingling that's been between her legs most of the night growing more persistent. It isn't the first time she's become aroused by him - no, simply being in his presence often does it, and she's gotten herself off several times with his face behind her closed eyelids.
"One wish? Whatever I want?" she husks, her voice rough with her arousal.
Castle nods.
"Fine. Show me your hand."
When they turn over their cards, she keeps her eyes on his face as he examines her hand.
"Four aces," he observes. "Impressive."
Kate looks at his hand, taking in the cards, and for the first time since this round started, she's nervous. Castle has a ten and Jack, both diamonds, and although she hadn't paid close attention to suits up until now, she realizes that he's a queen of diamonds away from a royal flush, the best hand, one of two that could beat hers.
Castle just lifts his brows and smirks. "Ready for the river card?" he asks, his voice deep and a little hoarse.
Kate nods, holding her breath. The odds are astronomical, but still, there's a chance. A date with him wouldn't be unwelcome, she tells herself. He's a cocky jackass, but it could be fun.
When he flips over the last card, she grins.
"Tough luck, Castle," she drawls, tapping the two of spades with her pointer finger.
Castle shrugs. "Good game, Detective. You won fair and square. So, I am at your disposal. Your wish is my command." He gathers the cards and slips the rubber band around them. "What will it be? You want me to stay away from the precinct for a week? Front row tickets to Wicked? Spa day at the Ritz-Carlton?"
Kate considers as she watches him push the gummy bears in her direction. Throughout their games she'd watched his hands, his strong fingers as he'd shuffled and dealt, the dextrous way he'd handled his cards. And the thought hits her like a freight train.
She wants to feel those hands on her skin.
"I want you," she finally blurts. He blinks at her, obviously surprised, and she pushes back from her desk. "Follow me."
She doesn't need to check to make sure that he's behind her; it's only been a few weeks, but Castle's shown that he'll follow her whether or not she wants him to.
His steps falter when she starts ascending the stairs, but after just a moment he's behind her once again.
"Beckett? Where are we going?"
She glances behind her when she reaches the fifth floor. "You'll see."
Castle falls into steps next to her, and out of the corner of her eye, she sees his head sweep to the side, taking in the empty floor. "What's the deal? Why are we here, Beckett?"
She leads him down the long hallway, stops at the door at the end. "This floor used to belong to Vice," she explains, "until they moved. Now it's where extra furniture goes to die." She twists the doorknob and shoves it open with her shoulder, her hand finding the light switch.
Castle takes in the sparse supply closet, and when he steps inside, she closes and locks the door. No one ever comes to the floor, and shouldn't try to find her anyway since she's off the clock, but she won't take any chances.
Castle turns to look at her, the curiosity obvious on his face. "So…"
Kate takes a deep breath and closes the distance between them. She hears his sharp inhale when she grips his belt and surges into him, crushes her mouth to his.
He freezes at the contact, and for a moment she almost pulls back and asks him to forget it ever happened. But then he softens under her touch, opens his mouth and slicks his tongue along her upper lip.
She opens her mouth on a sigh, and his tongue sweeps against hers, curling as his hands crop to her hips. She moans and tugs at his belt, undoing it, tears her mouth from his when she fumbles with the button on his pants. His mouth trails along her jaw, and he nips at her earlobe, chuckles against her skin when she grips his shirt and gasps.
"You like that?" Castle murmurs in her ear. He nips the lobe again, this time giving it a gentle tug, and groans when she cants her hips into his.
He's hard against her belly, and if she was thinking straight she'd be impressed at how quickly he's responded.
When she'd led him to this room, she'd intended to be in control. But, as Castle spins them and pins her against the door, he unzips her jacket, shoves it off her shoulders, and she realizes that he'd been waiting for his chance.
He bucks against her, his erection grinding into her, and it isn't nearly enough to provide any sort of relief. She buries her fingers into his hair, holding him to her as he slicks his tongue along her neck and slides a hand under her shirt.
His thumb trails across her ribcage and she shivers, drawing another low chuckle from him. He shoves his hand under her bra, pushing it up, until it's over her breasts and her sensitive nipples are brushing against her shirt. She hooks her leg around his thigh, trying to grind against him, to find even just a little relief.
"What do you like, Beckett?" Castle murmurs into her skin, his teeth scraping her pulse. "You like it slow and tender?" One hand is curled around her thigh, holding her to him, and the other cups her breast, his touch light, his thumb just teasing her nipple. "Or rough?"
It takes her by surprise when he pinches her nipple, and she arches into him, arousal pooling between her legs at the sharp pain and wonderful pleasure.
He lifts his head from her neck and meets her gaze, his eyes dark, stormy, and just a little dangerous. "Rough?" he rasps, grinding his hips, removing his hand from her shirt and gripping her jaw.
Kate loops her arms around his back and lifts her mouth to his, sinking her teeth into his bottom lip before drawing it into her mouth and soothing it with her tongue.
"What do you want, Kate?" he murmurs, sliding his lips against hers, their breath mingling. He lets go of her leg and presses his palms against the door, framing her head. His eyes bore into hers, searching, his lips parted and swollen from their kisses.
She looks the same, she assumes, but all she can think about is the hardness pressing into her. "Isn't it obvious?" she breathes, rolling her hips, smirking at the low groan it draws from him. She sneaks a hand between them and cups him through his pants.
Castle bucks into her when she trails her palm down his length, and he drops his hands to her slacks. Within moments her pants and underwear are halfway down her thighs, and he slicks a finger through her folds, echoes her moan with one of his. "God, Kate," he groans, teasing her clit before prodding her entrance with his middle finger.
She shoves her pants and underwear the rest of the way down her legs, manages to shake them free of one ankle so she can hook her leg around his again, and grinds her hips into his touch. He curls his finger as he pumps inside her, and she gasps when he adds a second and rubs his heel against her clit. She clenches around his fingers, cries out a curse as she shudders with orgasm.
She slumps against the door, panting, trying to catch her breath, when she hears a zipper and a familiar crinkle of a condom wrapper. Before she realizes his fingers are gone, she feels his thick cock sliding against her.
"Fuck," she breathes as he enters her, stretching her, filling her.
"Wrap your legs around me," he murmurs, stilling, pinning her to the door with his upper body, his hands gripping her ass as he pounds into her.
The last thought she has before she's crying out in pleasure is that he's still dressed, but before she knows it her fingers are digging into his back, and her hips roll as she spasms around him.
His thighs tremble as he speeds his thrusts, prolonging her orgasm, until he buries himself deep, groans into her neck as he comes.
They stay like that for several seconds, breathing hard, his body and the door the only things keeping her from collapsing. Eventually he lets go of her, and once her feet hit the floor she's pretty sure her legs can hold her up.
Castle steps away and turns around, and as she leans back against the door she hears his zipper and the clink of his belt buckle. He's raking his hands through his hair when he turns back around, and she ignores the disappointment that he's dressed before she can even see him.
He glances at her, and his cheeks flush a deep red when his eyes drop to her pants, still hanging off one ankle. He clears his throat and tugs at the cuffs of his coat sleeves. "Well. Until tomorrow, Detective."
Kate steps aside so he can open the door, and after he leaves she rests her forehead against the cool wall.
What the hell has she done?
And why does she want to follow him and do it again?
A/N: Ages ago, I was prompted in a group chat for a fic. The prompt was "supply closet sex." I managed to turn it into an 8-part AU fic, in which each chapter is set in a separate season. Chapter one, season one. Chapter two, season two, and so on. Every chapter is rated M. Any mistakes are mine. (Maybe unnecessary comment, but keep in mind that although some chapters are canon-compliant, the fic is still AU.) Enjoy!
