"Castle." She croaks and fuck!

How she doesn't come from the sound of his voice alone - pitched low and threaded through with the need for release, begging her not to stop - she will never know.

She's on a knifes edge, half agony, half desperation, a little lost in the feelings coursing through her that she knows he just caught sight of. Knows that there was a softness leaking into the black swathe of lust and he slows right down, stares into the depths of her eyes and -

He can see it.

Castle reigns in the need for his own explosive end and somehow he draws a dark, ardent cry from deep inside her chest.

His body becomes a rigid, frozen statue that spears her to the very core and she clenches around him, above, below and circling him, clenching, clenching.

Tight and spirally and slowly going insane because Castle won't go fast enough.

He just stares, rocks back and forth like he has all the time in the world and she's not being driven out of her mind with each slow slide of his body into hers.

Soft, whispering pleas, whimpers and whines leave her mouth and his hands at her hips hold her down on the countertop, forcing her to go at his speed.

The only leverage she gains is in arching her back, straining into his hands and pulling his mouth down to hers. She opens to him, claims, clings and devours him.

Whatever she can't do to his body - as he shakes and holds onto his willpower with an iron clad grip - she does to his mouth instead.

To his lips.

To his tongue.

The most erotic kiss she has ever shared is with Rick Castle in the bathroom at his book launch and somehow it's not surprising. It just feels inevitable.

The taste of him, the feel of him.

The feel and the knowledge that he saw something in her that she's still hiding from herself.

A dark burn of release begins creeping up and her inner muscles clamp down all around him like a thousand fingers rippling in a endless wave of repetition.

He grunts at the sensation, gyrates and tangles himself up in her.

"Castle." She cries, her tongue swiping against his lips so her words are muffled, saliva dampened, carnal. The threat evident nonetheless, "Castle. Move!"

She rolls her hips and everything centers between them, where they are joined.

"Move."

A sweet undulation.

A promise.

See how good it feels.

"Move."

He twitches, another grunted thrust, and she gasps, clings, flinches with the sharpness of joy that shivers inside her.

"Yes, more."

He shudders and his name leaves her in a drawn out sigh. "Castle, yes, yes, more. Move." Another frantic gasp, "Yes, yes. Please."

Her eyes open, hands at his jaw and he stares down and watches the internal waves rise up and claim her, rushing out over her skin in a blood red rush of passion.

It stains her skin. His too. Flesh flushed and luscious.

"Kate." He croaks and her name, the sound of his voice caressing each letter drives her closer. He can feel it. She knows he can

Castle pulls out - gives into her plea, dives into everything with her - pushes back in hard and fast, again and again and again.

His fingers climb her chest, stroke out over her breasts and taunt her nipples. He thumbs the peaks in incessant swipes and he feels her again.

Getting closer.

Fragile. Fierce.

Sweet. Fiery.

Her body alive and him ensconced within it.

"Kate." He hums at her ear, relishing the effect it has on her every single time he says it. The way she moans. The catch of breath that leaves her chest.

She's loud, she wants to warn him. Wants to take him by surprise just as surely as he's taking her.

She's loud and he's about to make her deafening.

He palms the back of her head, wanting to kiss her. She's desperate for the taste of him all over again.

His fingers wind between them and he grazes his own hard length when it slides into her, she feels the stutter of shock and delirium and the forceful, grunted thrust in response.

A white blaze of pleasure snaps through her and she clings to him.

He catches at the thin latex layer that separates them, feels it burning hot and drenched with her enjoyment and he growls her name, letting her feel how very wet she is for him with the press of his fingers.

His pads are slick to the knuckle and they slide easily, skimming her lips so that she bucks and moans gives up a litany of the dirtiest curse words he has ever heard.

"Fuck, Kate Beckett, what are you doing to me?" He grinds the words into her, a laugh torn from deep in his chest.

Her eyes flash to his with a look of Me? What about you? staring straight back at him.

She gyrates as his fingers slip and yes yes, fuck yes, Castle! Keep doing that.

He pounds harder and strokes over her -

"Castle, Castle." She roars, but he can do nothing but kiss her. Touch her.

The claws of his orgasm sink into him, course through him, throwing him higher, hitting low and hard and biting down with unrelenting ferocity.

"Kate. Kate. Kate."

He chants it, her name. Chants it over and over again drawing in ragged breath and keeping up the frantic snap of his hips. Their pelvic bones clapping together in a lewd ovation of their performance.

And she arches up, feeds hungrily from his mouth.

Her body becomes a whirling dervish, writhing against him and ensuring Castle is instantly blind to anything but the internal stranglehold she has on him.

He grips her hips, presses down with the roughened pads of his fingers and -

Yes, yes yes.

She splinters apart all around him.

Her cries pierce the silence as wave after wave of fire licks out from the innermost parts of her body. It touches everything, bathes her skin, teases muscles and sinews and swells only to break her apart once more.

Every time she reaches a peaking crescendo he surges back inside and sends her spinning all over again.

He grunts and yes, yes, now him. She needs to feel him.

The unrelenting, fast and hard clamp and release of her muscles painful in their grip tighten even more and her fingers drop, down to where she milks him, dragging over him, flittering between nails and soft strokes.

She squeezes him - so hot and hard in her hands and - tangles her fingers with his - speaks quietly against his lips, her eyes drifting closed.

"Oh, yes, Castle!"

Flares of fire shoot up his spine, igniting within her and sparking out through their bones. Sliding inside one more time, his lips opening over hers, he bursts apart like liquid lightning.