The precinct was abuzz with anticipation the day of the Christmas party. It wasn't the food or the corny decorations that had Castle lingering around Beckett's desk, though. Not even the promise of holiday-themed drinks had his attention. No, it was the way Beckett had leaned across her desk that morning, a hint of something mischievous flickering in her gaze as she'd said, "I'm planning a special performance tonight."
Castle had swallowed, trying to play it cool. "Oh? Are we talking 'Jingle Bells' on karaoke or something… bigger?"
"Wouldn't you like to know?" She'd smirked, that familiar glint flashing in her eyes. He could feel the stirrings of intrigue as she straightened up, brushing past him just close enough that he could catch her scent—a blend of something soft and dangerously alluring.
He'd grinned, but his voice came out more strained than he'd intended. "You really shouldn't do that, Beckett."
Her response was just a low chuckle as she walked away, and he could only watch, the hint of her smirk haunting him. It was going to be a long night.
Later, in the dimly lit bar, Castle nursed a whiskey, trying to focus on the conversations swirling around him. Ryan, Esposito, and Lanie were laughing at something, but he was only half-listening, eyes drifting back toward the makeshift stage. And when Beckett finally appeared, Castle's grip on his glass tightened.
The red dress she wore was practically painted on, hugging every curve, shimmering under the dim lights. The neckline dipped scandalously low, and the hem—God, the hemline left little to the imagination. She moved to the center of the stage with a confidence that made Castle's breath hitch. He knew she was used to being watched, to owning a room with nothing but a glance, but tonight? Tonight, she was something else entirely.
The music started—sultry, slow, a suggestive twist on a Christmas classic. The crowd around him grew louder, but all Castle could hear was her voice, smooth and seductive as she began to sing. His stomach twisted, a knot of nerves and anticipation tightening with every note.
Lanie whistled next to him, leaning over with a grin. "Guess Beckett's full of surprises tonight."
Castle tried to laugh it off, but his throat felt dry. He couldn't tear his eyes away as she moved down the steps, leaving the stage and wading into the crowd. Beckett sang to everyone in the room, yes, but there was something in the way her gaze flickered to him every now and then that felt like a private message, a silent promise.
Castle gulped hard as she made her way to their table, clutching his glass in a sweaty hand. She started with Ryan, giving him a playful nudge and running her hand slowly down his arm as he flushed and stammered, trying to act nonchalant. Then she moved on to Esposito, who laughed, playing along, though his eyebrows shot up at the sheer daring of her performance as he bent down to his level, undoubtedly giving him an eyeful of her cleavage. Inadvertently or not, her posture positioned her delectable ass right in front of Castle's face, and he clenched his jaw, unable to tear his gaze away from her tantalizing backside, barely covered by the skirt of her ridiculously short dress. His hands itched to touch her, and he bit his bottom lip in a struggle to refrain from the motion. But when Beckett finally reached him, the air seemed to thicken, the noise of the crowd blurring as she closed the distance between them.
She leaned in close, so close he could feel the warmth radiating from her skin, her fingers tracing a slow line down his chest as she sang just for him. She held his gaze firmly as she bent down to him, providing him with a breathtaking view of her breasts, pushed up on display, in a move that couldn't possibly be unintentional. Her voice was soft, sultry and teasing, the melody winding around him like a silk ribbon, and he felt his slacks growing unbearably tight. He swallowed hard, pulse pounding as she brushed her hand over his shoulder, down his chest and abdomen, almost to where he was throbbing for her. Her touch was light, almost casual, but it sent heat coursing through him, his skin prickling under the thin barrier of his shirt.
He forced a smile, but he was sure she saw right through it. She must have felt the way he tensed when her hand drifted lower, lingering just a moment longer than was appropriate. He gripped his glass a little too tight, his face flushing, but she just grinned, pulling back with a final glance that left him aching.
When the song ended, Castle released a breath he hadn't realized he'd been holding. He watched Beckett slip offstage, her red dress catching the light as she disappeared into the back hall. He was only vaguely aware of the others cheering and whistling around him, of Ryan and Esposito nudging him with knowing smirks, Lanie laughing at his obvious discomfort. But he couldn't respond, not really. He was already up, following Beckett toward the back while trying to rearrange his pants without drawing attention, his feet moving almost on their own.
The hallway was dim, the sounds of the bar fading as he slipped around the corner. He caught a glimpse of her up ahead, and just as he was about to call her name, she paused, glancing back at him with a small, knowing smile.
"What's up, Castle?" she murmured, her voice soft but laced with mischief. She took a slow step back, closer to him, a small, challenging smirk playing at the corner of her mouth.
"Do you have any idea what you just did to me?" he said, his voice low, barely restrained. She raised an eyebrow, feigning innocence as she shrugged one bare shoulder. But before she could answer, he closed the distance between them, pulling her back flush against him.
Beckett gasped, her breath catching as she felt the unmistakable evidence of his reaction pressing against her. She tilted her head to look at him, and he caught the way her expression shifted, her teasing smile sliding into something darker, more charged.
For a second, they just stood there, frozen in that electric silence, and Castle knew he should pull back, should say something to break the tension, probably even apologize, but he couldn't bring himself to let go. The pulse of the music from the bar seemed miles away, drowned out by the rapid beat of his own heart as he met her gaze.
"Castle…" she whispered, her voice a soft, breathless sound that made his pulse race.
He swallowed, his grip on her tightening as he leaned in, his mouth brushing against the edge of her jaw. She exhaled sharply, a soft sound that sent a thrill through him, her fingers finding his on her hipbone and tangling together as if she needed something to hold onto.
"You know," he murmured, his lips grazing her skin, "you're playing a dangerous game."
She turned slightly, her mouth close enough that her breath mingled with his. "Maybe I like the danger."
Castle's breath hitched, the weight of her words settling heavily between them. She was watching him, waiting, her eyes dark with that same daring glint she'd flashed on stage. He should have been the one with words, but for once, he was at a loss, the witty quips he'd been known for evaporating in the heat radiating from her gaze.
"Is that right?" he managed, his voice low, more a rasp than he'd intended. His hand slid down between her hip and her thigh, fingers pressing against the fabric of that infuriatingly sinful red dress. "Because if you keep this up, Beckett…"
His hand tightened involuntarily as she pressed a little closer, her lips just a hair's breadth away from his, her gaze dropping briefly to his mouth before flicking back up. "What?" she whispered, her voice a soft, provocative dare. "You'll lose control?"
He swallowed, his pulse a steady, relentless beat in his ears, and he forced himself to breathe, if only for some semblance of control. But Beckett's gaze held his, unflinching, a spark of playful defiance in her eyes. Every line of her body pressed into his, soft and warm, and Castle couldn't resist reaching up to cradle her face, his thumb brushing over her cheek.
"Maybe I already have," he admitted, his voice almost a murmur.
She didn't say a word, but her gaze softened, her expression slipping from that playful daring to something vulnerable, something real. And then, without another thought, he closed the remaining space between them, his lips capturing hers in a kiss that stole the last shred of restraint he'd been clinging to.
The kiss started slow, tentative, but quickly grew heated as she turned in his arms and her hands found their way to his shoulders, her fingers curling into the fabric of his jacket. She matched his intensity, her lips moving against his with a hunger that seemed to echo his own. He felt her shift, pressing closer, until his back was against the wall, his hands tracing a path down her back, pulling her against him.
Just as he was about to deepen the kiss, someone's laughter echoed down the hall, and they broke apart abruptly, both breathing heavily, frozen as footsteps approached. Beckett stifled a laugh, eyes wide, and Castle grinned, feeling like a teenager caught in the act. She straightened her dress, attempting to look as composed as possible, though her flushed cheeks betrayed her.
The footsteps passed, the echo fading, and for a moment they just stood there, sharing a breathless silence. Beckett glanced at him, eyes dancing with mischief again, her lips still swollen from their kiss, her cheeks still flushed.
"What?" he asked, voice still a little hoarse.
Without a word, she took his hand, pulling him through the door to the small restroom just down the hall, and Castle barely had a second to process what was happening before she pushed him against the wall again, her mouth capturing his with renewed fervor. He could barely breathe, his heart pounding, his mind blissfully blank as he lost himself in her.
Beckett's hands were everywhere, her fingers tracing the lines of his shoulders, his chest, and his own hands found her hips, pulling her closer, if that was even possible. They stumbled back, moving together in sync, her back hitting the stall wall with a soft thud as he pressed his hips into her, the kiss turning desperate and wild.
"Kate," he managed between kisses, his voice a ragged whisper. But her name only seemed to fuel her, and she wrapped her arms around his neck, pulling him down as she kissed him deeper, fiercer, her tongue stroking his until he was completely lost in her, completely helpless against the storm of her.
The world outside seemed to disappear, the laughter and clinking glasses fading to nothing as he focused on her, on the feel of her pressed against him, the softness of her skin under his fingertips. And with every touch, every kiss, he knew he was falling deeper, losing himself in her in a way he hadn't anticipated.
As Beckett's back pressed into the stall wall, Castle's hands found her hips again, pulling her flush against him, and his self-control slipped further. He could feel her warmth through the ridiculously thin red fabric, tantalizing against the rigid length of him straining against his slacks. She moved against him, her hands tangling in his hair, tugging just enough to send a thrill through him. He exhaled a shaky breath, his fingers digging into her waist, grounding himself as his hips instinctively moved against hers, each movement rough and completely out of his control, matching the fevered pace of their kiss.
The friction was maddening, the sensation of her pressed so intimately against him almost enough to undo him right there. Beckett gasped, her nails pressing into his shoulders as he moved harder, a low sound escaping him unbidden, and he felt her body arch into his in response. He was practically dizzy, the smell of her perfume and the taste of her lips overwhelming his senses, leaving him utterly consumed. He felt his mind fraying at the edges, his hips grinding harder and deeper against hers of their own volition as sparks flew from his groin throughout his body, his breath coming in sharp pants against her mouth as he felt the tugs low in his abdomen.
"Castle…" Beckett murmured, voice breathless, and her hands slid down, gripping the fabric of his jacket as if holding on for dear life. His hands in turn slid to her backside, groping her ass and encouraging the undulation of her hips. Her legs shifted, allowing him to press even closer with each thrust, the heat of her body making his heart pound with a rhythm he could feel echoing through his entire being, throbbing in his cock, and he was so close, the delicious ecstasy just out of reach—
And then, she let out a shaky laugh, a mix of disbelief and amusement as she broke the kiss, resting her forehead against his. "Castle… are we really… dry humping in a bar restroom like teenagers?"
Her words snapped him back to the moment and he pulled back slightly, the tremors in his center slightly dissipating, his chest heaving as he took in her flushed cheeks, her eyes bright with a mixture of exhilaration and mischief. The movement of his hips slowed as the reality of what they were doing hit him, but somehow that only made the situation feel more intoxicating. He chuckled, breathless. "Seems like we are," he admitted, unable to suppress the grin on his face. "But if we keep going, I don't think I'll be able to stop." He neglected to mention how close he had been to exploding just moments before.
Beckett smirked, biting her lip as her eyes trailed over him, clearly weighing her options. And then, without a word, she took his hand and tugged him into the stall, locking the door behind them. In the tight space, she backed against the wall, pulling him close again, her voice soft but teasing. "Then don't stop, Castle."
Castle didn't need any more encouragement. The second the stall door was locked, he was on her again, his lips finding hers with a renewed intensity, his hands roaming over her waist, her hips, drawing her close until there was no space left between them. The narrow stall forced them even closer, every movement sparking an intense, heady friction that made his pulse race.
This was not at all how he had imagined their first time going, but he was too far gone, too lightheaded and intoxicated with her, unable to bring himself to pull away.
He kissed her deeply, pouring every ounce of pent-up tension and desire he'd held back for so long into each press of his lips. Beckett matched him beat for beat, her fingers weaving into his hair as she angled her head, deepening the kiss until he could barely breathe. He felt her leg slide up along his, her thigh pressing against his hip as she arched into him, the sensation setting his nerves ablaze once more. He was wound up so tight already, his lips hanging open against hers as he barely kept it together.
They were lost in each other, the world outside fading to nothing but muffled sounds as they moved together, every shift and press stoking the fire building between them. Castle felt her hands drift down to his shoulders, then lower, pulling him against her as she moved in rhythm with him, the friction igniting every nerve in his body.
A strangled groan escaped him as she rocked against him, her breaths quickening to match his own. Her mouth broke from his, trailing along his jaw to his ear, and he shivered as she whispered his name, the sound making his head spin. His hand found her waist, the other hooked under her thigh wrapped around him, steadying her as they moved together, the ache of anticipation building with each pass.
Beckett's hands slipped under his jacket, her fingers splaying over his back, tugging him closer. Every movement, every breath was in sync, a dance of desperation and restraint that left them both trembling, teetering on the edge. He could feel her heart racing against his chest, could see the flush on her cheeks as her mouth found his again, her kiss hungry and demanding, pushing him past the point of reason.
"God, Kate…" he whispered against her lips, his voice barely a rasp. "You have no idea what you do to me."
She chuckled softly, breathless, her eyes dark with desire as she murmured, "I think I have a pretty good idea."
Her fingers tightened on his shoulders as he pressed her back against the wall, each shift sending a spark of electricity through them both. And then she tilted her head back, her voice a soft, almost teasing whisper. "You know, Castle," she breathed, her voice low and a little hoarse, "we could… make this a little more comfortable."
"More comfortable…" Castle echoed, his voice low, the words barely a whisper against her skin. He took in the sight of her, still breathless, her eyes glinting with a mix of desire and amusement, and the last remnants of his self-control dissolved. Slowly, his hands moved to her waist, fingers tracing the lines of her dress, savoring every inch of contact.
With a steady, deliberate touch, he slid his hand up her side, taking the hem of the dress with it until it bunched up around her waist, his eyes fixed on hers. She inhaled sharply, watching him with anticipation, her hands drifting to his chest, slipping beneath his jacket to push it back. He shrugged it off, the fabric hitting the floor with a quiet rustle, and her fingers immediately found the buttons of his shirt, working each one free, her fingers brushing his skin as she went.
His breath hitched when her hands trailed down his chest, and he leaned forward, his mouth finding the sensitive spot at the base of her neck, pressing slow, lingering kisses as he worked the zipper of her dress, pulling it down inch by inch. The dress loosened, slipping down from her chest, and he took in the sight of her bare breasts rising up and down with her breaths, every curve of her bathed in the dim light.
Castle's hands slid over her bare skin, memorizing every inch, his touch slow and reverent as she leaned into him, her hands finding their way to his belt. She undid it with practiced ease, letting it fall, her fingers grazing his waist as she worked at his pants. He let his mouth drift down to the slope of her breasts, lapping at her skin hungrily. Each movement was purposeful, deliberate, both of them taking their time, savoring the feel of each other as the air grew thick with anticipation.
They were both breathing heavily by the time she pried his pants open and pushed them down his hips, their bodies pressed close, the heat between them almost overwhelming in the cramped stall. Beckett wrapped her arms around his neck, pulling him down into another deep, consuming kiss as his hands slid to her hips, guiding her back until she was against the wall again. He pressed into her, a shiver running through both of them at the intensity of the contact, and she let out a quiet gasp, her fingers gripping his shoulders, anchoring herself.
"Castle…" she breathed, the sound barely audible, her voice a mixture of need and tenderness that sent a thrill down his spine. He leaned forward, his mouth finding hers again as they moved together, grinding through only their respective underwear, each touch, each shift building the fire between them until they were both lost in it, in each other, the world outside forgotten.
With their breaths coming in shallow, ragged gasps, Castle let his hands slip down her waist, fingers tracing the edge of her last remaining barrier. His gaze met hers, silently asking for permission, and when she gave a small nod, he slid his hands lower, drawing the scrap of fabric down with deliberate slowness, relishing every inch of her skin as it was revealed.
Beckett shivered as his hands roamed over her, and she moved her own hands down his chest, tugging at the waistband of his boxers and guiding them down, letting him spring free. They took a moment, suspended in the haze of desire, each taking in the sight of the other. She bit her lip, her eyes dark with anticipation, and he felt a surge of heat as he leaned into her and angled himself just right, his thickness sliding through her folds, their bodies coming together in a way that felt both new and inevitable.
Castle wrapped his arms around her, pulling her close, their bare skin pressed together, the warmth between them igniting every nerve. She let out a quiet gasp as he slipped inside her, their bodies fitting perfectly, and he captured the sound with his mouth, kissing her deeply as they found a rhythm, slow and intense, each movement fueled by the years of tension, the unspoken words, the endless days and nights of stolen glances.
Her hands gripped his shoulders, pulling him closer, urging him on as they both lost themselves in the moment. The pace of their hips gradually quickened in tandem, Castle's forehead dropping to her shoulder, nuzzling her neck as he chased her tight warmth. The walls of the stall seemed to fade away, leaving only the two of them, wrapped in each other, their breaths mingling, their bodies moving in perfect sync.
They moved together, each touch, each kiss, driving them higher, their surroundings forgotten as they gave in to the moment. Beckett's nails raked down his back, her breath gasping, and he responded with a low groan, his lips brushing over her neck, her jaw, tasting every inch of her as they moved faster still, the intensity building until it felt there couldn't possibly be more to crest. Beckett's breath panted against his ear and Castle thrusted into her frantically, face buried in her neck, eyes shut tight against the waves of sensation. He could feel her fingers tremble as they combed into his hair at the nape of his neck, and his breath shuddered as his hips jerked sloppily, the tight ball of desire exploding at once. Fireworks erupted behind Castle's eyelids as heat spread throughout his body from where they were joined, his muscles quivering with the waves of pleasure, peripherally aware of Beckett's body shuddering in tandem. They reached the peak together, their names slipping from each other's lips in gasped whispers and low groans as they clung to each other, trembling and dazed.
For a long moment, they stayed locked in each other's arms, breathing heavily, letting the aftershocks of the moment settle over them. Finally, Castle pulled back slightly, his forehead resting against hers, a soft smile tugging at his lips even as he still panted as he met her gaze. She looked at him, her cheeks flushed, her eyes bright with a warmth he hadn't seen before.
Castle took a shaky breath, a grin tugging at the corners of his mouth as he whispered, "I told you you shouldn't have done that performance."
Beckett's laugh was soft, her fingers brushing lightly along his jaw as she replied, "And miss out on this? I don't think so."
He chuckled, his gaze lingering on her, his expression warm with a depth of emotion he couldn't hide even if he tried. Slowly, reluctantly, he released her, their hands lingering on each other as they began to straighten up, pulling at their crumpled clothes in the cramped space. With unspoken teamwork, they helped each other straighten down their clothes, smoothing out creases and adjusting jackets, sharing a few lingering touches that said more than words could.
When they were finally dressed, they took a steadying breath with one last glance at each other and stepped out of the stall, both of them holding back grins. Beckett checked herself in the tiny mirror, touching up her hair and wiping any remaining traces of lipstick from the corner of Castle's mouth before slipping back into the dim hallway side by side and making their way toward the bar.
As they re-entered the crowded room, they were greeted by knowing glances from Ryan, Esposito, and Lanie, who sat at their table with amused smirks and raised eyebrows. No one said a word, but the air between them crackled with unspoken understanding. Ryan leaned over to whisper something to Esposito, who tried and failed to hide a grin, while Lanie arched an eyebrow at Beckett, her expression saying everything she didn't need to.
Castle and Beckett took their seats, attempting to keep their expressions neutral, but the thrill of their shared secret hung in the air. Every so often, they'd catch each other's gaze across the table, their eyes shining with the memory. Beckett's lips curved into a soft, knowing smile, and Castle felt his heart skip as he returned the look, his own grin widening.
The night continued on, their friends joking and laughing, but Castle and Beckett remained wrapped in their own world, stealing glances and subtle touches under the table. Though no one mentioned what had happened, the look in their friends' eyes made it clear: everyone knew. Yet somehow this was theirs alone.
As the bar began to empty, Castle lingered by the door, saying his goodbyes to Ryan, Esposito, and Lanie, who each gave him an extra-long hug, their knowing grins hinting at everything unsaid, their winks only deepening the thrill still lingering within him. Beckett stood beside him, a thick coat now hiding most of her sinful red dress, arms crossed casually but a soft smile playing on her lips as she glanced his way.
When the last of their friends waved goodbye and disappeared into the night, Castle turned to her, his hands slipping into his pockets, his smile tinged with a bit of reluctance. He wanted to draw this evening out, but he didn't want to push his luck. "Well, Detective, I'd say that performance was… unforgettable." His voice held that familiar mix of charm and warmth, though he tried to keep it light, as if he was ready to leave it there. "I guess this is Merry Christmas… and goodnight?"
She tilted her head slightly, her smile deepening as she watched him, leaning in just a little, something playful and inviting in her eyes. "I was thinking…" She took a small step closer and paused, holding his gaze, her voice dropping to a soft murmur. "If you don't have any other plans… maybe it doesn't have to end just yet."
Castle blinked as his eyes widened, surprised by the quiet confidence in her invitation, but then a slow grin spread across his face, lighting up his eyes as her words sank in. "Is that right?" he replied, his voice barely a whisper, a mix of excitement and disbelief. He searched her expression for a moment, finding nothing but reassurance and a warmth that made his heart skip. Without another word, Beckett slipped her hand into his, giving it a gentle squeeze. They turned together, stepping out into the cool night, the city lights casting a soft glow around them as they walked side by side in comfortable silence, the unspoken promise of what lay ahead hanging in the air between them. The night stretched before them, full of possibilities, and as they fell into step, Castle knew this was only the beginning.