Castle grinned as he held his wife's hand and they raced up to their room like teenagers sneaking off at a party. Or like Ryan and Honey-Milk, he started to correct himself, then stopped. The last thing he wanted to think about was those two all hot-n-heavy when he was about to get lucky himself.

Though there was little chance of RJ wandering in, being the good sleeper he was, Castle shut the door and gave Beckett a long, slow kiss.

'Why don't we set the mood a little, darling?' he murmured to her. 'Not just, let's make a baby, hop on sailor.'

'I agree. In fact, I was thinking perhaps...maybe we might have a little foreplay in the shower together?'

'The shower?'

'Uh-huh.' Beckett nodded as she slipped the buttons of her blouse through the holes. 'It's been on my mind today, I think the rain was getting to me.'

'I see. Well then, let's go run the water.'

'In a moment.'

Beckett unfastened her pants, slipped them off along with her bra and panties, then went to look at her body in the mirror. She still had a small bit of a tum from RJ that no amount of diet and exercise would shake off. Absently she ran her hands over it, over the rest of her naked body and tried to imagine it large once again with another baby.

'Katie-Lou, you are thinking too much.'

'Not thinking, daydreaming,' she corrected, then let out a pleasant little sigh as he wrapped his arms around her from behind - he was as naked as she was and there was little more she needed right now. Turning around Beckett pressed her body into his and kissed him; her legs were just enough apart that went she gently thrust her hips forward at him, she grazed against him seductively.

'Oh, God.' Castle groaned, felt his blood moving around. 'Forget the shower, I'll have you now.'

'All good things to those who wait.'

'Aw, man.'

'And now you sound like our son.'

He gave her the fish-eye. 'That's a good way to dampen my spirits.'

Because she was feeling particularly frisky with him tonight Beckett couldn't help herself. 'I thought I was the one who's supposed to be getting...damp.'

Castle fought the urge to actually bite his fist in frustration. 'Good thing we're getting in the shower so we can clean you up, dirty girl.'

Hand-in-hand, they went into the ensuite, where a few flips of the levers had piping-hot water raining down on them both. For a moment, they stood together under the hot spray with hands running over each others' bodies, reveling in the touch of the skin. Castle groaned as Beckett's hands slipped down his back to clench over his ass, one moving around to the front to just lay against him. He was hardening already from that alone, but since she was in such a charged mood, he wanted to be the one to seduce her.

He dipped his head, kissed her deeply, tongue searching in her mouth; her sigh was one of pure, melting pleasure. Just when he felt her start to kiss him back, his lips cruised over her jaw down her shoulder and back so that he was looking deep into those sea-goddess eyes.

'Kate,' he murmured, closing her hands over the shower bar. 'You'll need to hang onto something.'

'What?'

But he was already kneeling down in front of her, hands over her hips and those smooth, firm lips kissed their way up her inner thigh until-

'Oh, god!'

Beckett felt stars burst behind her eyes at the sensation of his tongue tasting her, her thigh muscles going lax as need rose like a tsunami in her core. Her back arched in reflex as she shuddered; she wanted so badly to run her fingers through his dark, damp hair but she was far too lost in her own needs to make that a good idea. Her hips were creating a rhythm beneath his mouth and when she felt his fingers stroke firmly over her leg to join his lips, she swore she blacked out for a moment.

'Rich, I'm...I'm...'

'Yes, Kate,' he whispered as he laved at her and smiled with pure manly satisfaction as his gorgeous wife began to tremble with orgasm at his hand. Or mouth as it were. When her shaking had subsided, he rose up and kissed her as hot water sluiced over them both.

'Rich,' Beckett said again, hands clutching at his back. 'Now.'

'I'll need a little help.'

'Okay.'

Planting her feet as best as she could Beckett slipped her hand between their bodies and closed her hand over the hard length of him to help guide him in. She rocked her hips forward against his so he filled her up, and as she did so, she licked her lips in anticipation of him, making Castle nearly lose his mind already.

She still had no idea what those little things did to him, Castle wondered briefly, like when she touched the tip of her tongue to the bow of her lip, the thought of him buried so deeply inside her making her hungry for it. He moved with her, making it a slow deep grind, the kind that had her fingers digging deep into his back in a way that would leave war-wounds in his shoulder-blades. The whispered demands for him to keep going, to not stop, until she all but sobbed that she was coming again, and it didn't take long for Castle to say the same thing back to her and empty himself inside her.

For awhile they stood there tangled together in the shower, trying to get their breath back. Beckett stared at him, the goofy, satisfied grin taking over her face as she smoothed her wet hair out of the way.

'Well,' she said in a considering tone, 'that's one way to start trying to give RJ a brother or sister.'

'Indeed,' was the only thing Castle could think of to reply with. 'A very fun way to use the shower too. And now I'm hungry again.'

'And we're back. I think there's leftover pasta in the fridge.'

'Not pasta. Grilled cheese.'

'I thought since I'm the girl, I'm the one who's supposed to get weird-ass cravings,' Beckett teased him as he shut off the water and they stepped out of the shower. Reaching for her towel, she gave him a look as he shook his head. 'What?'

'We're alone, you don't need to cover up.'

'I'm drying off and wrapping up. Deal with it.'

'Then how can I oogle your caboose?' At her eye roll, Castle reached for his robe and belted it loosely around his waist. 'Ah well, if you're covered up, I get to fantasize about what's underneath.

He opened the door, winking at her - and stopped short when they both saw RJ sitting in the middle of their bed with his precious bunny Omeo looking absolutely miserable.

'Mama? Daddy?'

'Hey, big guy, what's wrong?' The post-coital afterglow of amazing sex vanished in place of motherly concern. Beckett reached for her own robe on the back of the bedroom door and tied it tight around her before kneeling on the bed beside her son. 'Why are you out of bed?'

'Bad duh-reams, Mama. Big bugs geddin' me. You no' here.'

'Oh, my little prince, it's okay. I'm here now.'

'Why you an' Daddy all wet?' RJ asked with a sniffle, looking at his parents. 'You haffa bath time?'

'Something like that.'

The little boy nodded, then burst into tears again. 'No' wanna suh-leep. I suh-cared, Mama.'

'It's alright, RJ. Mama's here, and Daddy too.' Beckett gathered her son close, gently rocking him back and forth. 'Nothing's going to get you, we're here.'

'I posa be big boy.'

'RJ, I'll tell you a secret.' Having found his voice, Castle came over and stroked RJ's sleep-matted hair. 'Everyone gets scared, boys and girls, even mamas and daddies too.'

'You no' suh-cared ever, Daddy. Shane too.'

'Yes I am,' he replied honestly, silently adding, like right now, when it's possible my almost-three-year old overheard me screwinghis mother's brains out in the shower.

'Huh. O-kay, Daddy. I have-a hug?'

'Of course.'

RJ unwrapped his arms from around his mama and gave Castle a squeeze, then held out Omeo. 'Bunnies af-aid too?'

'Even bunnies get afraid too.' Castle did his duty and gave Omeo a kiss and a hug. 'You want to hang here for a moment?'

'Puh-lease an' tanks.'

RJ snuggled down between his parents, and when he finally gave up the fight against his eyelids, Beckett and Castle looked at each other with a nervous laugh.

'Well, at least we avoided a baby-making conversation. At least for now.'

'There are worse things to have happen. Remember Carey asking Lanie if Dell was right in saying parents had to be naked together to make a little brother or sister?'

Castle blanched at the idea of it. 'Yep, I think we should consider ourselves very lucky.'

'And once the little guy's back in bed, we'll consider ourselves very lucky.'