Summary: There are some people who are so much a part of us, they'll be with us no matter what. They are our solid ground. Our North Star. Post-Always.

Disclaimer: I have an oral exam tomorrow and I really should be studying right now. Instead I'm watching the last scene of Always over and over again like an obsessive maniac.

Right in this moment when she slipped her hand in his, their world fell into place. They had stopped kissing for one second to look into each other's eyes and when she smiled at him Castle wondered how it was possible to be this in love.

To have another human being consume you, make every inch of your body tingle, make your heart feel like like it could burst any second.

In this moment when her words, oh her beautiful words, replayed in his mind and the taste of her delicate skin lingered on his lips, Castle had lost the last bit of control he held.

I almost died and all I could think about was you.

Their kisses had been passionate, desperate even. His lips had gone from her lips to her neck and her chest. And then he had popped open her top button to look at it. Her scar.

And he had touched it, reverently. She had pressed his hand with her own over her heart. Her way to show him that her heart was his. She was finally sharing everything with him. Open, bare in front of him. Giving him everything. Kate could feel her heart hammering under his touch.

All of a sudden, his hands and lips had been everywhere, his erratic breath warm on her skin making her heart race, setting her insides on fire until he completely surrounded her.

I just want you

And as she raised her other hand to his face, her fingertips barely touching and her lips slow-danced along his, he neither could no longer feel anything. Except her. Kate.

She pulled on his hand and bit down on her lower lip, silently leading him away from the door but their eyes never left the other. The way he was looking at her anyway, she could have taken him anywhere for all he cared, as long as they stayed together.

She faced him again and walked backwards, pulling him with her. All he could see was her face, the most beautiful face he had ever seen. Gorgeous eyes and delicate angles. Her soaked hair sticking to her cheeks. The face of the woman he loved beyond words and imagination.

Before he could register what was happening, she had walked them into his bedroom. She reached for his face again, her fingers trembling and he reached around her waist to press her body against his. They both exhaled loudly at the sensation and their lips sought each other like magnets.

Oh, you're in my veins and I cannot get you out.

Slowly, torturously, he opened the rest of the buttons of her shirt, his mouth only leaving hers to pepper kisses down her throat again while her hands took turns between running though his hair and untucking his shirt.

When they were rid of both their shirts, Kate dropped her hands to run her hands over his chest then pushed slightly so that his legs hit the foot of the bed and he was forced to sit down. She settled on his lap and he went back to kissing her with a passion, his hands cradling her face first, then slipping thought her wet strands and finally down the soft skin of her sides.

Their faces remained a few inches apart and she nuzzled his nose with her own again as they both tried to calm their breathing.

When his hands found her thighs, she gasped in his face and arched even closer to him. He couldn't help it, he rocked his hips into hers and they both moaned at the sensation. God, the urgency he felt knowing that it was finally here, finally happening and nothing could ruin this perfect moment was exhilarating.

His face nestled between her breasts and his lips brushed her scar again before landing on the top of her breasts where they parted to let his tongue taste the delicate skin there. She panted softly and when he raised his head again to meet her eyes, she cupped his face and brought his forehead to her lips, pressing them lightly against his warm skin, one, twice.

Her touches were impossibly soft, his unbelievably tender.

Their love utterly transparent in every move they made.

Castle cupped her backside and lifted her to change their position. Kate locked her arms and legs around him, clinging to him like a koala bear. She burried her face in the hollow of his neck and breathed him in. He got up, turned them and laid her down on his bed.

Oh, you're all I taste at night inside of my mouth.

He applied open-mouth kisses from the small hollow under her bra to her belly button and then he reached for the buttons of her pants and she raised her hips to help him slowly pull them down her legs. She was watching him watch her and everytime his eyes landed on a new parcel of skin, it set on fire. He then took care of his own pants pushing both items of clothing to the side with his foot.

They were both in their underwear now and they found that the magnetic pull between their skin suddenly became a whole new kind of torture, almost impossible to bear.

Oh, you're in my veins and I cannot get you out.

He was lying over her in an instant and then his hands were eveywhere again as if wanting to touch every single inch of her at the same. Her legs intertwined with his, her tongue found his earlobe and her hands reached around his waist to stroke his lower back. And his sharp intake of breath told her that she was making it incredibly difficult for him not to rock his hips against hers again.

He kissed her shoulder soundly and very slowly pulled on her bra straps, the right one first, then the left, his lips following their descent down her arms. She reached behind her back to unhook it and he helped her take it off by sliding it down her arms and then throwing it behind him.

The heat in her body raised considerably when he started sucking on her nipples and her hips jerked involuntarily towards his. Castle took his time to lick and nip at every inch of her chest down to her belly and when he reached the line of her panties she could no longer hold back the moans stuck in her throat. Castle, Castle, Castle.

She used her fingernails to graze his scalp and it took all it had in him not to rip the panties off of her. No, she was finally his and he was going to take his time. There wouldn't be any more first times. And he wanted her to feel how much he loved her, how much he ached for her, how much he had missed this even if they had never done it before, it was like finding the perfect puzzle piece to fit the hole in his heart that had been there ever since he could remember.

There are some people who are so much a part of us, they'll be with us no matter what.

So, he kissed her through her panties first, enjoying the way her legs were shaking uncontrollably, then he slipped his fingers underneath the sides of the tiny piece of clothing and pulled them down, his fingers trailing down her legs in the process.

His fingers then started back up again from the underside of her feet and around her ankles to the soft skin of her shins and up to her incredibly long legs to her thighs. He applied the softest of kisses to the skin there in order to pry her legs open.

She moaned then and called out his name, pulled on his arms to bring his mouth back on hers. Their lips slow-danced again and they turned into a tingling heap of limbs. Open mouths tasting, naked chests brushing, hands roaming down each other's bodies.

Eventually, Kate reached down to pull his boxers down first with her hand then slid it further down his legs with her foot until they were both completely naked and so wrapped up around each other it was impossible to tell where one ended and the other began.

When he pushed all the way into her, he did it at a torturous pace, trying to convey everything he felt for her with his eyes locked on hers as they finally became one.

They are our solid ground. Our North Star.

Kate slipped her fingers between his again. She had never felt so complete in her entire existence. And as they found their rhythm as easily as they did with everything else, she realized she had been wrong before, finding her mother's killer wasn't the most important thing in her life anymore. He was. Because without him, she didn't know who she was anymore. He had made his way into her life, into her heart, into her veins.

They were partners in every sense of the term. Or as he had said earlier even more than partners. Their connection was so strong that they had merged into one and the same. It was in the way they moved against each other - perfectly in sync, in the way they could say so much without words or lose themselves in each other's eyes. And in the wild beating of their hearts as their world burst into flames.

And the small clear voices in our hearts that will be with us. Always.

I really hope you enjoyed it. I've been obsessed with Castle for a while now and I read an unhealthy amount of fanfiction about Castle and Beckett but this is my first attempt at posting anything. So, please try and leave a review. It would mean a lot!

Also, I apologize for any mistakes I may have made. I am not a native English speaker. And I hope it wasn't too obvious.

Thank you very much for reading!