"So, lucky?"

Castle's voice was soft and barely there in the darkness of his bedroom and Kate turned towards him, her eyes finding his in the play of shadow. She curled her arm around his neck, her fingertips brushing the curve of his bottom lip as she draped herself across his chest.

"Mmhmm." She blinked languidly, watching him. "He survived you, he's very lucky." She snickered into the warmth of his bare chest, as he grumbled under his breath. But his fingers tightened, pulling her closer and she inhaled, sleepily nuzzling into his jaw.

"Mean," He started lifting the hem of her shirt, sliding under, finding skin. "Fair, still... mean." He huffed, "But..."

"What?"

"He can't live at the end of your bed." Castle sighed dramatically.

"He can, I'll protect you." She yawned, hoping he would get the hint but he didn't.

"I can't have it staring at me whenever we are...ya know?"

"No, what?" She tilted her head and smirked.

"You know, when we are..." He mimed probably the dirtiest thing she had ever seen, at least when they weren't doing what he gestured, and she laughed, smacking him in the chest.

"Not happening."

"And..." He hesitated, and she waited him out. "We were supposed to name him together and Lucky is way more you than me-"

"And Houghton was all your idea, Castle." She poked lightly at the soft swell of flesh at his ribs. "So, impasse."

"Ow, or we give him a middle name?" She felt the roll of his shoulders as he shrugged.

"Lucky Houghton?" She grimaced , "Sounds ..."

"Like a stripper?"

"No." Kate grinned, "There is nothing Nikki Heat about little Lucky."

"Hey!"

"I was going to say, it sounds like a racehorse."

She felt the jiggle of the bed as his body hummed with excitement, "Oh, our love fish could be a thoroughbred little...OW!" He shoved her hand away from his chest, the soft flesh of his nipple still throbbing from her pinch.

"What was that for?

"Love fish?"

"You are a very handsy woman, Katherine Beckett." Castle rubbed at his chest and eyed her warily, "And not always in the good way."

Kate "Aww'd" and attempted to placate him. Her hand gentling him in soft soothing circles until giving in she hoisted herself onto one arm and flung her leg across his thighs. Lowering herself with a happy sigh until her chin rested on her hands, over his heart and she was staring down at him with an easy smile.

"Mmm." Her eyes closed when his hands drifted through her hair, one riding the curve of her shoulder, glancing her neck before ghosting down her back.

A few soft touches and hopefully he would stop talking.

"Lucky Houghton..."

Or not.

"Castle?"

"No, that's my name."

She glared.

"Alexander."

Kate hummed, eyelashes fluttering, ignoring him as best she could.

"Steve." He countered, arguing with himself and chuckling when she pouted.

"Rick?" She growled but he carried on.

"And something interesting like-"

"Coffee." She murmured. Wondering if he would even notice she had left if she climbed over his rambling body and headed for the kitchen.

"Espresso. Much more dignified. Lucky Houghton Alexander Steve Espresso the wonder fish."

Kate opened her eyes slowly, drinking him in. "I meant coffee...for me." Her knees found the bed either side of his hips giving her leverage, "Because you insist on talking instead of letting me sleep." Her hands landed either side of his face, toying with the pillow as she lowered herself down.

Her lips opened wetly at his jaw, teeth grazing his stubble and she felt him shiver in response. Finally catching on as his hands began to roam.

"Doesn't feel like you want to sleep, Kate."

"Got a better idea?" She challenged, hooking her fingers into his waistband.

"Yeah," He pulled her closer, waggled his eyebrows and grinned. "I'm gonna make the most if it without Lucky eyeballing me."