Beckett had learnt early on in their romantic relationship that she would almost always be awake before Castle. The man could sleep for America, he really could. Glancing at the clock, she noticed it was already nearly 8 - she never stayed in bed this late, not even on the weekends. Well, wasn't everyday a weekend now that she'd quit her job? Slipping out of bed quietly, she padded into the bathroom carefully, so as to not wake Castle, because nobody on earth wanted to face a grumpy Richard Castle, she wouldn't wish that on her worst enemy.

He'd been writing last night though, hadn't come to bed until gone 3 in the morning. Beckett was glad, despite what he'd told everyone at dinner two nights ago, she knew the book wasn't coming along very well and it was partly her fault - if she hadn't been occupying his time practically all day, he would have had the time to write.

It wasn't until she had finished using the toilet and was washing her hands that she noticed something - she hadn't had to put the toilet seat down and she was pretty much certain that Castle would have used the bathroom before coming to bed. And she always had to put the seat down when she went in after him, he was a nightmare.

Grinning to herself at his adorable behaviour, she turned on the shower and stepped under the hot stream of water. She was just rinsing the shampoo out of her hair when she felt a sudden breeze as the door was opened, before quickly being replaced by Castle's body heat.

"Morning, Becektt," he whispered into her ear, standing behind her and wrapping his arms around her waist.

"You're up early," she noted. "Why didn't you stay in bed, I know you came to bed late last night."

"Woke up and you were gone," he replied simply, "can't sleep if you're not there."

"I'm sure you managed perfectly well before we were together," she laughed, reaching for the conditioner.

"Yeah but I'm used to you being there now, feels weird when you're not. Here, let me do that." He took the conditioner from her hands and squeezed a lump onto his hands, replacing the bottle when he was done. Running his hands through her hair, he spread the conditioner from root to tip, massaging her head as he went.

"God, Castle," Beckett groaned. "That's so good.."

"You could have this every day you know?" He said, wondering if she'd pick up on what he was getting at.

"Is this another one of your ploys to get me to move in?" She asked with a grin.

"I..what do..wait, another one of my ploys?"

"Don't think I didn't notice that you put the toilet seat down after you used it last night," she replied, swirling round to face him and wash the conditioner out of her hair.

"Is it working?" He asked hopefully and his face was filled with such a look of pure excitement that she couldn't help but laugh.

"Yeah, Castle, I guess it is," she told him softly, waiting for him to catch on.

"Good. That's cool because- oh my god did you just agree to move in?!" She had, hadn't she? He wasn't imagining things or anything..

"Oh..yeah, I think I did, actually," she replied lightly. "If you still want me to, obviously."

"Are you joking? Of course I want you to!" He beamed, surging forward to meld his lips with her own. "Oh wow, this is the best day ever!"

He was such an adorable child sometimes but she loved him for it. So much. "Hey Castle?" She said, grabbing the sponge to wash her body. "Want me to make it even better?"

"How could you possibly- oh, we get to have shower sex too?" He asked gleefully.

Not where she had been going with that but she wasn't about to say no..in a minute, though.. "Wasn't what I was talking about but sure, why not," she grinned. "Ah, just hold on a sec," she added when his lips started suckling her neck.

"What, now we don't get to have shower sex?" He frowned.

"You're really into this whole shower sex thing, aren't you?" She mused.

"With you? Yeah," he shrugged. "But wait, if that's not what you were planning on doing to make this day even better then what is it?"

Dropping her sponge back onto the dish attached to the wall, she looked him in the eyes, his face looking down into hers. "I love you."

Castle's face broke out into the biggest grin she had ever seen, his eyes crinkling in that adorable way she loved. "I love you too," he replied, "oh god I love you so much!"

M RATED, FEEL FREE TO SKIP

Their mouths met in a heated, passionate frenzy, tongues slipping past lips to explore further. Hands roamed and stroked and teased, eliciting moans and groans and gasps from them both. She was more than ready, Castle realised, no foreplay needed - not that there ever really was much need for it, she was always ready for him but he liked to pleasure her as much as he could. Knowing that she was always ready for him though sent a bolt of pure lust through his body.

Gripping his length, he guided it to her entrance as she hooked a leg over his hip, allowing him to get closer. He pushed her up against the wall, tugging on her other thigh to bring it around his waist too, his hands squeezing and kneading her ass as he slipped all the way inside of her on a groan.

"I'm..close, Castle," she whispered and his head sunk to her neck, suckling on that sweet little spot that drove her crazy. He wasn't disappointed, her movements sped up, hips meeting with his in a punishing rhythm, her hands digging into his shoulders as she threw her head back into the tiles and moaned his name aloud.

He was close too, having her so tightly wrapped around him was enough for anyone to lose control. Sliding a hand between them, he circled a finger over her centre, hissing as she clenched even tight around him.

"Yes..right there, Castle," she moaned, "oh god I'm so close.." His finger began circling again, increasing and decreasing the pressure until the was practically begging for it. "Now..oh god, please.." Upping the ante, he circled harder and faster as his hips drove him into her, eyes flicking up to her face in time to see her fall apart. Her eyes were screwed shut as her orgasm hit, legs tightening around his waist and it was the most perfect sight he had ever seen. "Yes..oh shit..Castle..oh god, I love you, Rick, I love you.." She mumbled, head falling forwards to land on his neck. That was it, he was gone, just hearing her profess her love for him as she came was enough to finish him off, her name leaving his lips as he let go.

END OF M RATED

"I love you, Kate," he whispered into her hair as he set her back on her own feet again.

"Shower sex everything you thought it would be?" She giggled, arms wrapped around his neck as she gazed up at him.

"Better," he said, pressing a kiss to her lips. "Everything with you is so much better than I though possible."

"You're such a sap!"

"Yeah but you love me," he grinned. He'd never get over that, never get used to hearing her say it no matter how often she did.

"I do. I love you so much," she reiterated. "Now can we get out of the shower before the water runs cold?"

"Is that all of it?" Castle asked, depositing a box in his - his and Kate's - bedroom.

"Yep, that's all of it," Beckett grinned. "I am now officially moved in."

They hadn't wasted anymore time, heading over to Beckett's apartment the same morning she had agreed to move in to start packing. Charlie had been happy about it - though Kate couldn't figure out if it was because she was moving out or because she was moving in with Castle. Charlie was staying in Kate'a apartment for now, there was still another three months on the lease and Charlie had come up with the idea of her staying and paying it, and then in three months she could decide what she was going to do.

"Just got to find somewhere for all your stuff now.." Castle mumbled.

"Oh come on, Castle," Beckett laughed. "I hardly have anything with me!" She'd obviously left all the kitchen and living room stuff with Charlie, simply packing her clothes and belongings and any personal items she had collected over the years. "All you've gotta do is clear a bit more space in your wardrobe.."

"We're going to need another wardrobe entirely just for your shoes!"

"Well do you want me to get rid of some?" She offered. Ha, that was so not happening.

Castle seemed to know when to not agree with her. "No, Beckett, if you get rid of the shoes then you'll constantly be wanting to buy new ones. Well, I'm sure you're going to buy new ones anyway but we can find somewhere for them to go."

"If you're sure.." She smiled. Not like she was planning on getting rid of any of them anyway, that was one thing she wouldn't compromise on. "I can always model them for you later if you like..just the shoes.." She whispered seductively and she knew she had him. Despite his qualms about having enough space for them, she knew giving him the mental image if her wearing nothing but her four inch red stilettos would do it for him.

"Are you sure you have enough? Why don't we go shopping..yeah, let's go buy more shoes.." Castle replied and Beckett laughed.

"God I love you. Now come on, or your mother and daughter are going to be sending out a search party." She headed towards the door, turning back when she realised he wasn't behind her. "What's wrong?" She asked.

"Nothing..just..you saying you love me..I don't think I'll ever get used to that."

"Guess I'll have to keep saying it then, won't I?" She grinned and he followed after her.

"Ah, there you two are," Martha said as they made their way into the kitchen. "Now Katherine, we're going to let you in on a little family tradition - whenever someone has something to celebrate, we cook a huge meal and play board games. And, as it's you and Richard celebrating tonight, Alexis and I shall be cooking - you two go and sit down with a glass of wine and relax, you must have had a busy day.."

"Thank you, Martha," Kate smiled. Both Castle's mother and daughter had been extremely welcoming of the fact that she was moving in, both stating how happy they were for them both. Following her instructions, Kate and Rick moved to the sofa, making themselves comfortable.

Oh I've just remembered," Castle piped up, "Esposito text earlier, said they're all going for drinks after they've finished work on Friday if you want to go? Think they were going to The Old Haunt.."

"Yeah, Castle, that's sounds good," Kate said. Although she had been busy, she really was starting to miss the guys she worked with, catching up with them would be nice.

Despite Castle's warnings about his mothers cooking, the meal she and Alexis had cooked was lovely and Kate had never felt so at home, it was as if she'd always been here.

The four of them were now sat around the coffee table, playing the age old classic Cluedo. Kate had been up for Scrabble but Alexis and Martha had soon put a stop to that - nobody could beat Castle at that so they refused to play it, much to Castle's disappointment.

"We can play it later, just the two of us," Kate had whispered to him, which seemed to pacify him for the time being. She knew how competitive he was and beating him would probably only end up with him in a strop but she'd give it a go anyway.

Cluedo was a fun game with this family, with Kate actually being a detective and Castle having worked with her for four years, they had a slight advantage, but Martha's acting skills came into play on her turns and Alexis was smart enough to figure anything out.

It was Alexis who won in the end, much to Castle's disappointment, but Beckett promised to make it up to him some how. She hadn't shown him her trick with ice cubes yet.. So after the game and a bowl of ice cream each, Castle and Beckett retired to their bedroom - a glass of ice cubes joining them.

Thoughts?

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