A/N: This is the final chapter to this story. We are now heading into M territory. You've been warned! ;)

Kate finishes the last dish and puts it in the rack to dry. She grabs the towel and wipes her hands and heads toward the bedroom to find Rick. As she approaches the doorway, she sees that the bathroom door is still closed and hears the water running. She steps over to her suitcase and peers inside. She smiles when she sees her item that she packed from her kinky box. She traces the edge of it and picks it up. She walks over to the nightstand beside the bed and puts it in the drawer for later. She is going to surprise Castle with it. She shivers at the thought of later. She hears the water shut off to the shower and decides to go ahead and change while waiting on him to emerge.

Castle steps out of the shower and wraps a towel around his waist. He runs his hands through his hair and opens the door to the bedroom. His heart stutters in his chest at the sight of Kate. She is dressed in a sexy black negligee with a very revealing lacey bodice. She is turned away from him lighting the tea light candles at the ledge near his bed. He slowly walks up behind her and lightly rests his hand on her hip to let her know he is there. Her breath hitches at the contact. She drops her hand that is not holding the lighter and laces her fingers through his at her hip. He gently sweeps her hair to the side and places an open mouth kiss to her neck while placing his other hand over hers as they finish lighting the remaining three candles together. Castle takes the lighter from her hand and sets it down as Kate turns around in his loose embrace. She levels him with a look of unguarded want and He melts right there. He doesn't know if he will ever get over her looking at him like that, so open and honest.

He traces the edge of her eyebrow down her cheek with his finger and her eyes close from the contact. He bends down and captures her lips with his own. He seeks entrance to her mouth with the tip of his tongue and she opens sliding her tongue along his. Moving slowly, he walks her backward toward his bed as he continues to kiss her. Kate nips at his bottom lip and pulls it into her mouth causing him to groan. He drags his hand across her stomach and her skin ripples. Her legs catch the side of the bed and she tumbles backward pulling him down with her. He leaves her lips and starts pursuing her neck. He stops kissing her and leans back and takes her in. Her hair fans out from around her smoky eyes, flushed cheeks, shallow breathing , he takes his finger and traces the edge of the see -through lace bodice revealing her breasts. He pushes the strap off her shoulder and leans down places a gentle kiss to her collarbone and places a barely there kiss between her breasts. He skims his hand down her chest and caresses her breast through the lace and flicks his thumb across her nipple eliciting a groan from her. He trails his hand down her abdomen to the edge of her black lace panties. Slipping his fingers inside, he circles her bundle of nerves before slipping one finger and then the other inside her wet heat causing Kate to buck her hips. Kate reaches down to the edge of his towel and undoes it. She drags her leg up the outside of his leg and plants her foot on the mattress. She places her hand on his shoulder while pushing off with her leg flipping him onto his back. She straddles his hips and leans down pulls the towel out from under him. She settles back down with her knees on either side of his waist and she just needs to touch him. She drags her hand down the throbbing length of him making him groan. She has to smile at that. She loves the effect she has over him. She bends down and captures his lips with her own and delves her tongue inside for a slow kiss, dragging her tongue along the roof of his mouth. She traces the shell of his ear with her thumb. She trails her other hand down his side and laces her fingers with his and pulls his arm above his head and holds him there. She continues to kiss him while gradually reaching her hand toward the bedside table. Slowly she opens the drawer and reaches her hand inside and feels the soft curved edge of the object. Picking it up she drags it up the mattress and undoes the clasp. Reaching down she snags Castle's hand and quickly pushes it over his head to join the other one. In one swift move, Kate puts his hand inside the metal object and closes it around his wrist. Rick stills his movements at the feel off the cuff around his wrist. He tries to pull his other hand from her grasp but she is too quick. Kate loops the cuff through the headboard rail and out the other side. She puts his other hand on the cuff and closes it tightly. Satisfied, she leans back and smirks at him.

"You did not just do that," he replies.

"Oh, I think I just did," she says back.

Rick picks his head up off the pillow and looks around the room.

"What are you looking at?" She asks.

"Me? I'm looking for the tiger." He drawls.

"Hmmm, look no further cause you are looking right at her," she says as she rocks her hips back and drags her hands down his chest. And with that, she slides off of him and stands up.

"Where are you going?" He asks.

Kate gives him a full face smile that reaches her eyes and responds, "you'll see." She shimmies out of her panties and throws them at him and turns and walks out of the room.

Kate traipses back to the kitchen and opens the fridge door. Peering inside she finds what she is looking for and picks it up. She heads over to the cabinet and grabs a small bowl. She pours the liquid from the container and into the bowl and goes back to the bedroom. She steps inside the bedroom and halts mid-step. She looks at Castle and damn if she isn't turned on seeing him there naked and cuffed to the bed. Paybacks are a bitch, she thinks to herself.

She crawls back up in bed and straddles his waist again.

Eyeing the small bowl in her hand, Rick swallows hard. "Kate….," he says in a low growl. Kate looks up at him feigning innocence. "What's in the bowl?"

"Dessert," she replies as she dips a finger into the bowl. She traces Rick's lips with the sweet substance and leans in and licks it off his lips eliciting a small moan from the back of his throat.

"Mmmm chocolate," he says as she leans back and dips her finger in the substance again and runs a thin trail of it down his neck. She leans in and kisses it off his neck. She runs another thin line down the center of his chest and dabs a finger over each nipple with the syrup. She reaches over places the bowl on the bedside table. She sits back up and she catches him staring at her, eyes swirling dark in want. Oh the power she holds over him. She runs her hands down her chest seeking friction. She grabs the hem of her negligee and drags it up and over her head. She reaches around her neck and pulls her hair to one side as she leans down and kisses him again on the lips one more time before she continues her path across his chest. She lightly drags her tongue across his nipple and licks the chocolate off. Rick slams his eyes shut from the contact. He is in sensory overload. Hands over his head, aching to touch her. He is all tactile now. He feels her hair across his chest as she goes from one nipple to the other and on down as she dips her tongue in his belly button. He bucks his hips at that. He is so tight with need. A slow burn that stokes higher with each caress of her tongue. His heart is hammering inside his chest as he starts to pant.

Kate continues to run her tongue down from his belly button to the tip of him. She runs her finger down the length of him as her stomach quivers and tightens in need. She knows she is killing him. Knows what it is doing to him not being able to touch her. She leans down runs her tongue along his tip and down the length of him. She looks up at him and he is watching her again. She raises back up and straddles him. She leans forward and feels him at her entrance. Carefully she rocks her hips back and slowly takes him in. She pauses to reveal in the exquisite feel of him inside of her and stifles a moan of her own. Rocking forward Kate rests her weight on her forearms so she can get as much skin to skin contact she can manage in her position. She sets a slow pace at first. She rocks backward as he pushes up with his hips. She settles into that give and take rhythm as old as time. With each long stroke, her need tightens lower in her abdomen. She leans forward and laces her fingers through his and holds on tight while kissing him and picks up the pace. Getting closer now, she lets go of one of his hands and places it on his shoulder for leverage. Rick looks up into her face and watches as her breathing stutters and he feels her begin to shudder just before she comes undone around him. Riding her wave he follows right behind her in his own release and crashes down with her. Kate releases her hand from his and places it behind his head as she leans down lays her head on his shoulder. She snuggles down on top of him and tries to regain her breathing. Castle closes his eyes and tries to slow his breathing down.

"Apples," he rasps.

She laughs at that, "Really Castle? It's a little late for that don't you think?"

"God, Kate,"

"And I see you have found religion too," she interrupts.

"Mmmm"

She reaches up and frees his hands from the cuffs. She leans over and places them on the nightstand. "Next time you decide to whisk me away for a weekend, let's do it without pursuing a case."

"Come on Kate, you're no fun"

She leans back and raises her eyebrow at that comment as she reaches over and puts her finger on the edge of the cuffs.

"Got it, loud and clear. You are so wicked, Kate Beckett. "

"Uh huh, you remember that next time."

"Next time?"

"Yeah, next time."

A/N: Thanks to all of those whom have followed this story. Reviews are awesome and story ideas are even better!