"So..."

Detective Kate Beckett looked over at her partner curiously. He had been silent since they left the bullpen and uncharacteristically restrained as they rode the elevator to the basement parking lot. It might have worried her... except for his hands. They clenched compulsively every time the elevator signaled another floor, his Adam's apple bobbing like he was swallowing words he wanted to say.

"So... What?"

"Sew buttons?"

Kate rolled her eyes. "The last time I heard that I was in grade school."

Castle grinned. "Then you're welcome for the nostalgia."

"Castle!" She reached up, tweaking his right earlobe between her fingers.

"Apples! Apples! Okay!" He rubbed the sore lobe. "I was just wondering..." He flinched when her eyes went stony. "Your place or mine?"

"That's the best line you can come up with?" Beckett swallowed; her eyes half closing as she tried to control the flood of desire that crashed over her at his words. "So what? Now that you've had me once (She ignored him when he held up 4 fingers) you think you get to be lazy?" She almost sighed in relief when they reached her cruiser. "What makes you think I would choose either?"

Rick was having none of it. Grabbing her hips in both hands he slammed her against the back door of the car, his mouth descending on hers and demanding entrance; groaning when she gave in willingly.

"Kate..." He whispered breathlessly as his hips ground into hers, finding the slight roll she was doing with her own more than he could bear.

"Kate..." One hand slid up to cover the straining peak of her right breast; the other sliding... lower.

Much lower.

Way Lower than it should considering their current location.

"Castle!" She surged against him, his fingers making her forget where she was. "Rick..."

His name came out like a prayer; a benediction... And even through his lust induced haze, he heard... and understood it.

Pulling back, he looked into her eyes. "Which?" Castle swallowed. "Because you are NOT going home alone tonight."

Beckett bit her lower lip as she considered her options; startled when Castle growled and slammed into her again, the bulge in his pants growing even harder. A small whimper escaped her lips at the feel of him, the pressure perfect and in just the right place.

"Have I ever told you," Rick panted into her ear, pushing harder with his hips, smiling darkly when he felt her hands slide beneath his jacket to dig into his back. The delicious pain not tempered by his shirt one bit. "How crazy it makes me when you do that?"

Kate smiled innocently, well, as innocently as she could manage with the lust that was burning in her eyes. "Do what?"

He kissed her hard, his teeth biting into her lower lip fiercely before running his tongue along the indentions to soothe it.

When he pulled away, Kate was breathless and a little dizzy. "Oh... That."

Grinning at her lack of focus, he reluctantly let go of her hips and grabbed her hand, pulling her around to the passenger side. He opened the door gallantly. "Get in."

Beckett opened her mouth to argue, only to suck in a shuddering breath when Castle's large hand slid up her throat and behind her neck. His grip was fierce and she couldn't help remembering their first kiss. In a dirty alley, outside of a warehouse where the boys were being held; the whole time being watched by some flunkie... and it was still hot. It was in the line of duty! It wasn't supposed to mean anything. But she had known then...

... It meant everything.

She grabbed the front of his jacket, pulling him closer and kissing him, her tongue not asking for permission before forcing it's way into his mouth. His hands were everywhere and she groaned as her body took over.

Damn, physical memory was amazing!

She felt herself hook one leg around his hips, opening herself more fully against him.

It was almost too much; the heady mix of love and lust, the knowledge of what his body could do to her... And her complete lack of ability to stop him.

Hell, if she was honest with herself, she didn't want to stop him.

She wanted to ride him.

Kate groaned as Rick's hand slipped down to grip her ass; tugging her more tightly against the evidence of his own arousal and she knew if they didn't stop now... She'd end up fucking him in the back seat of her own cruiser.

"Okay..." She whispered, untangling herself. Without another word she slipped into the passenger seat; watching through the window as Castle took a few moments to compose himself... Not to mention adjust his pants.

A/N: I know this was a short update but I have plans with friends tonight and wanted to get something up. Look for another update late tonight or early tomorrow as it is half written.

As always, reviews are crack... Enable me! ;)