Prompt: "What even are we?" — "I'd say enemies with benefits."
Set after "we are not married"- scene in 1x05. Let's pretend it's late evening and they decide to end for the night after that scene. M- rated.

"So, next step is to check the ledger," Beckett barged out of the apartment but before she could hit the elevator Castle grabbed onto her arm.

"How about we call it a night?" he suggested and she looked at him with question in her eyes.

He only smirked and that glimpse of lust in his eyes had her abdomen fill with heat. Fuck him.

"The case isn't closed yet," she said with a stern voice but she knew he could see exactly what he was doing to her.

He wiggled his eyebrows as he walked past her, pushing the button for the elevator and she bit her lip as she turned to watch his back, her eyes traveling a little souther than she'd anticipated. When the elevator doors opened she was quick to train her eyes on the wall of it, not wanting him to see what she'd been looking at as he glanced back to her. She strode past him into their transport and pushed for the lobby, still keeping her eyes locked away from him she could feel his were looking up and down her body. His burning gaze had her unable to stand still. Ever since she gave into the tension between them she had a hard time resisting, especially when they made that... that... mind... melting... thing. As soon as the doors were closed she felt his hand land on the low of her back, his fingers doing slow circles making electricity going down her spine.

"Castle." Her tone was a warning, she was closing her eyes to try and control her breathing, so she didn't see when he closed the distance between them. She did feel it though, his mouth suddenly brushing her left ear as his hot breath reached her skin.

"Let's call it a night, I know you want to," his voice was low and husky and shit it was turning her on. He sucked in the tip of her ear in his mouth and she couldn't stop the shiver going down her body at that, which only evoked a chuckle in his chest.

"Fuck you," she whispered under her breath and his hand crept down to squeeze her ass.

"I'd rather fuck you," he husked and she drew in a quick breath at the meaning he put in his tone.

"C-Castle," she stuttered, knowing the elevator would open at any second now.

Without warning he was gone. Beckett opened her eyes to see he had removed himself to the other side of the elevator with a smirk plastered on his stupid face.

"I hate you," she muttered right in time for the doors to open and walked out of the elevator. She knew the smug look he had on his face when she walked past the lobby and out the doors to get to her car.

"Soo, no ledger?" Castle teased and she gave him her look, opened her car door and narrowed her eyes.

"Shut up and get in the car."

He smirked at her when he got in and she tried her hardest not to look at him. She put the car in drive and took off into traffic, not expecting his hand to land on her thigh within seconds of them being on their way to her apartment. She let go of the wheel to slap his hand away, only he kept it right there. The warmth spreading from her lap into her bone, heat going straight to her...

"Castle! If you don't want us to crash you'll get that hand off of me."

He squeezed her thigh once before letting go. The rest of the ride she tried not to think about the way he was constantly looking at her. She was tempted to turn on the blue lights only to drive faster home but managed to refrain by repeat 'you are being stupid' in her mind. They kept apart in the elevator on their way up, both knowing a simple touch would torch them. Beckett took out her keys and tried to as casual as possible unlock her door when Castle was suddenly right behind her, his torso to her back and his lips by her ear.

"You're pretty cute when you try to resist me," he said with a low husky tone.

She gasped when she felt his bulge touch her ass. It took five more seconds before she'd gotten the door unlocked and pushed it open to be able to turn around and pull him inside. Their mouths locked almost immediately and he kicked the door shut behind them before he placed his hands behind her thighs, close to her ass, to pull her up into his arms. She wrapped her legs around him, connecting their centers as she started grinding into him, feeling how his member hardened through their pants. He carried her towards the bedroom, a pathway he'd learned to walk with his eyes closed the past week. Their tongues clashed together the second their mouth opened, how come they always did things so synced? Castle carefully put her on the bed and followed to push his body onto hers. His mouth travelled from her lips, his tongue sticking out to leave a wet trail from her jaw to her neck and god he was sucking her pulse!

"Shit, Castle!" she gasped when his hand suddenly crept into her pants, sliding a finger through her folds.

She felt his sucking grow harder on her pulse and she knew, she knew, he was purposely creating a hickey she'd be forced to hide from her brothers. Oh and from Lanie. She would kill him! But, it felt so good. Maybe she wouldn't. Oh god. His fingers found her clit and circled it to make her moan in a way only he had been able to. Fuck she hated him. She immediately missed the pleasure when he removed his hand but when he started tugging on her shirt she knew it would get so much better from there. His lips only let go of her neck in order to pull her shirt off her body, only to add them to her collarbone again once the fabric was gone. She started to unbutton his shirt but as she was pushing it away he grabbed her hands and pinned them beside her head.

"Na-ah," he said in a teasing tone and before she could argue his mouth was back on hers again. His tongue slipping into her hot cavern of a mouth when he made her gasp by thrusting his hips into hers. He was invading her mouth like he was telling her just how good he was going to fuck her. "Don't move your hands," he ordered in her ear as he let go of her. He pulled away enough to give her a stern look and why was he so smug?! It took only a minute for him to pull her pants off, with her panties quickly followed, with practiced moves and how the hell could he already have learned how to pull her pants off that quick?! Then his mouth was on her and she screamed out in shock and pleasure and fuck. He was invading her like he had been invading her mouth just seconds before and it drove her crazy how amazing he made her feel. She moved her hand into his hair, which earned a growl from him sending vibrations through her body and having her orgasm hit hard. He ate her out, lapped up her juices before he kissed his was up her belly, licking at her navel and sucking right under her breast and she was sure he was marking her with another hickey. Somehow he managed to slip his hands behind her back without her knowing until he was throwing her bra on the floor and latching onto her breast, circling his tongue around her hardened nipple.

"Fuck, Castle!" she was already feeling herself climb the mountain of pleasure again. She pulled him up to lead his lips to hers again, tasting herself on his tongue. Her hands landed on his chest and she used her legs in order to flip the over, pushing her body into his while, finally, she was in control again. Or... somewhat in control anyway. The way he was making her do these things she knew, in the back of her head, she was in absolute no control. She was quick on his shirt, pulling it out of his arms to throw it on the floor, beside her bra. Kissing her way down his chest her hands started with the unbuckling of his belt and pants. As soon as his pants were out of the way she met his eyes to lick her lips.

"Beckett... if you..." Castle started but caught off with a groan when she opened to take him in her mouth. He was moaning as she swirled her tongue around his tip and sucked hard. "Oh my god, Kate." She gave him a wicked grin as she pulled away with a pop and she started kissing up his stomach again to reach his lips again. Their tongues were a hot mess and she placed him at her entrance as his hand landed in her short hair, holding her close to him. She pushed down, letting him go deep inside her before she created a rhythm she already knew would bring him as close as she was. Why did she know what did it for him? She was definitely enjoying this way more than she should. Without warning he flipped them back around, thrusting into her and gosh he was hitting her g-spot just right. Their kisses got sloppy, tongues twisting and lips twining. His thrusts got sloppier as she tightened around him and before they knew it they were both coming hard, a white bliss surrounding them. Their lips parted with heavy breaths mixing while their foreheads kept in touch. The bedroom was quiet, except for their breathing, about five minutes before he decided to fill the silence.

"Beckett?" he panted and she hummed for him to continue. "What even are we?"

Beckett tried to get a control of her breathing while her brain tried to process his question and what to answer. How do you even answer that? And what were they doing? After a few minutes of thinking she decided to go with, "I'd say enemies with benefits."

She felt him pull out of her and why did that stroke feel so good? The small moan escaping her mouth was a surprise to both of them, her cheeks were going hot and she tried her best to pull on her pokerface.

"Oh," he let go and she bit her lip at the small disappointment she managed to see before he turned his face to the ceiling, laying down on his back beside her. She didn't want to hurt him, she really didn't, but... she couldn't.

"Look Castle," she took a deep breath and she felt his eyes on her as she turned her own to the ceiling. "I'm not ready for anything real, not good enough, and I'm sorry I came crashing your book reading in that damn dress. I didn't mean for this to go so far."

"What du you mean 'not good enough'?" he asked and she dared only a glance at him, seeing the confusion in his eyes. "And for the record, I'm not at all sorry you came crashing my work in that hot, pink dress." Somehow that drew a small chuckle from her lips and she wondered how it was so easy for him to amuse her.

It only took a second before she got serious again, the sated feeling was amazing but somehow she felt the need to give him the story now, her story. "By the way, it was my mother, not my father. We were supposed to go to dinner together, my mom, my dad and I, and she was gonna meet us at the restaurant. But she never showed. Two hours later, we went home, and there was a detective waiting for us. Detective Raglin. They found her body. She had been stabbed." She had to pause to draw in a breath, trying her best not to let the tears escape down her cheeks.

"A robbery?" he asked careful when she failed to continue.

"No," she answered. "She still had her money and purse and jewelry. And it wasn't a sexual assault, either." She bit her lip, turned onto her side in order to lay towards him. "They attributed it to gang violence. Random wayward event." His hand was in between them, and so to have something to do she let her fingers slide into his, fiddling with them while continuing her story. "So, just like in Melanie's case, they couldn't think outside the box. So they just tried to package it up nicely. And the killer was never caught."

She could sense he had more questions, so she glanced at him with a go-ahead nod. "Why do you wear the watch?"

Ah, that's right. He'd noticed the watch. "My dad took her death hard. He's sober now. Five years. So, the watch is for the life that I saved." She gave him a weak smile, which he immediately returned. "And the ring I wear around my neck, the one you so carefully took off that first night when I almost shot you for touching it, is for the life that I lost."

She felt a tear go down her cheek and she had to clench her eyes shut in order to not let the rest follow. The hand she had not stolen came to her cheek, gently wiping it away and she couldn't stop from turning her face and kiss his palm. She was literally laying naked and fully vulnerable in front of him, and she had never felt safer. It was weird, the way he made her feel. Both physically and emotionally.

"I'm sorry Kate," he mumbled, probably afraid of saying the wrong thing and how had she ever thought he was a jackass? She had seen this side of him quite a lot now, especially after their intense and intimate actions, when all he wanted to do was cuddle with her. And she'd seen it at times when he was talking about his daughter as well, oh and a couple other times also. The asshole persona seemed to only be a character he played in public, and she wondered why that was. And cuddling had never been her thing, especially not when the relationship was purely sexual, but with him she couldn't seem to get enough. "And I understand if you're not ready, I do, but... I can wait, I can take it slow. I want you Kate, and not just like this or for research for Nikki, but I want to take you out, woo you and more. But I'm not going to force anything on you, I can take it slow. I'm a very patient person when I want to be," his voice was filled with promise, and even though those kind of words often had her running in fear she didn't feel at all frightened by him.

She was silent, and so was he. Probably waiting for her response, a response she was trying to figure out. She searched in his blues for anything that indicated something other than what he was saying. She found none. So, silently she nodded, agreeing to giving it a shot. Maybe not right away, but she did want it eventually. "Okay, slow," she whispered and she saw a glimpse of something pure sparkle in his eyes. He leaned forward and kissed her lips in a way that was a lot more softer and emotional than any of the ones they had shared in the past week, and for once in a long time that type of kiss didn't scare her. Their bodies drew closer and soon she had her head on his chest, his arms tight around her.

"Until tomorrow, detective," he said and hadn't she been so satisfied and tired she would've rolled her eyes.

"You can't just say 'night'?" she questioned quietly.

"I'm a writer. 'Night' is boring. 'Until tomorrow' is more hopeful," he explained and she chuckled.

"Yeah, well, I'm a cop. Night," she snuggled in closer. Already halfway into a slumber as she heard his response in her hair.

"Night."

The End.