Prompt: After they deliver the criminal to the boys in 2x01, C/B just can't resist anymore and do it in an alley nearby with some Russian role play.


His back hits the hard brick of the wall, but he doesn't even feel it, all of his focus on the press of her body into his, the insistent push of her tongue into his mouth, and he doesn't understand because she's still angry with him, still hurt from what he did to her, from his betrayal.

"Kate-"

"Shut up," she hisses and is she… she just spoke with that same Russian accent he heard inside the kitchen when she was saving his ass from a killer mobster. "You have been very bad boy," she adds, allowing the first breath of space between them since the boys left with their killer and she shoved him into this dark alley only a few feet from her cruiser. "Bad boys have to learn."

"L-learn?" he repeats, watching as she tilts her head, dark amusement simmering in the deep brown pools of her eyes.

"What's the matter, Mr. Castle?" she coos, his name sharp as it drags past her lips. "You are afraid of being taught lesson?"

He swallows hard, staring down at her, at the challenge sparking in her eyes.

She's all lithe limbs and smokey eyes, swollen lips and tousled hair, something straight out of one of his fantasies, only better. But there is vulnerability hiding in her face, a hint of Kate that he just wants to take care of, but she doesn't want that. He has so much to make up for and he won't deny that he wants her so badly right now it's almost painful, but what if this causes their already tentative relationship to crumble completely?

Her hips cant towards him impatiently and the last of his reluctance turns to ash. There was never really a choice to be made; he'll do whatever she says.

"How do you intend to teach me a lesson?"

Her lips spread into a wicked grin, her eyes glinting with dangerous mischief as she drifts closer once more, hips canting against his.

"You are going to earn my forgiveness."

She's captured his mouth again before he can even consider asking her to elaborate, biting hard on his bottom lip, sending pain and pleasure shooting through his veins, and then sucking the abused flesh into her mouth, laving it over with her tongue until he's groaning low in his throat.

"Shh," she breathes, puffs of her warm breath covering his ear. "Shh, have to be quiet."

He knows she's in charge, but the only way he's keeping quiet is if he has his mouth on her, so he spins her around, swallowing the surprised gasp the flutters past her lips as he kisses her hard, sucking her tongue into his mouth and splaying his hands over the blooming lattice of her ribs, fingers burning for the skin beneath the thin material of the cardigan she's made amazing use of.

"Can I touch you?" he pants, just to be safe, and he takes the sharp buck of her hips against his as a yes while she reclaims his mouth.

Castle undoes the belt around her waist, allows it to drop to the ground as he impatiently unbuttons the cardigan. The hot pink of her bra framing the perfect mounds of her breasts, the taut expanse of her stomach, and the matching underwear - jesus christ - makes his pants unbearably tight. He's always known Kate Beckett was sexy, but not even in his wildest fantasies had he been able to conjure up something this breathtaking.

Literally. He can barely breathe.

He smears open-mouthed kisses down the gorgeous column of her throat before she can hurry him along, traveling down to the heaving slopes of her breasts, teasing her through the pink lace with his tongue, watching the flesh of her bottom lip blanch beneath the restraints of her teeth, suppressing sounds he's desperate to hear.

He goes lower, scaling his mouth down the quivering muscles of her abdomen, attending to every glorious patch of skin he can reach before he drops to his knees, onto the dirty concrete of the alley floor, and finds the lace edge of her panties with his teeth.

He draws the material down her legs until she can step out of them, tucking her underwear into his jacket pocket before molding his palms to the flexing skin of her upper thighs. His mouth paints her inner thigh, sucking and nipping the so soft skin until a strangled mewl slips past her lips and then she's cursing, in Russian.

God, she is just so hot.

When his mouth touches her, she jerks from the wall, gasping loud and ragged as he sucks on her clit before allowing his tongue to explore the length of her, savoring the tart, sweet flavor of her. The moan he releases against her is quiet, but causes her fingers to wind into the locks of his hair, bordering on painful as she digs her nails into his scalp.

His tongue delves inside her, drinking her in, and her hips quiver, thrust shallow against his mouth, and she's already close, he can feel it, but he wants to draw her pleasure out for as long as he can, turn her body into a mess of ecstasy. Castle slips one of his hands beneath her bra, tweaks the taut peak of her breast at the same time he slides two of his fingers inside of her. She keens, low and breathless, her muscles so tight and narrow around his digits.

Her hips jerk off the wall and he presses her back with his mouth, pumping his fingers so deep inside the scorching heat of her body, curling them against that sensitive spot inside of her in cadence to the swirl of his tongue over her clit. It's only seconds later that she goes completely still, clenching fiercely around him, and nearly buckling to her knees.

He catches her before she can fall, covers her mouth with his own, swallowing the moans, the breathy whimpers, finally escaping as she tastes herself in his mouth.

Kate sags against him and he withdraws his fingers from between her legs, wipes them on his pants before doing up the buttons of her cardigan. When her legs are reliable again and she leans back against the wall for support instead of him, Castle retrieves her belt from the ground, wrapping it around her waist.

There's a subtle weight of awkwardness in the air and he thinks it's too much, that it was all a bad idea and she's finally going to decide she can't bear to have him around anymore.

Instead, Kate's fingers close around his wrist, tugging him along with her as she rounds the corner to the thankfully empty sidewalk and leads him back to her Crown Vic.

"Did I - did I earn forgiveness?" he asks once they're both locked in and she's turning the key in the ignition.

Kate smirks, a lazy curve of her lips, and reaches over to palm the hard bulge of his crotch.

"I think so," she sighs, breaking character for a moment, looking so pleased with him for the first time in months, before donning the accent once more. "You've proven to be very good boy, Richard. Now we go to my apartment and I show you how good I can be."