Title: Doctor's Orders

Rating: I'm going to let you guess, okay? Take a wild guess.

Summary: Hospitals are a place of healing; a place of rest. Try telling this to Castle and Beckett.

Disclaimer: My birthday wish didn't come true. Let's put it that way.

Author's Note: This was going to be a one-shot. Now it's a series. Why, you ask? Because apparently, once you get Castle thinking about sex in the hospital he just won't stop telling you all the places you can do it, and before you know it hospital sex just became a habit. And the Beckett in my head can stop looking innocent, because you just KNOW she has plenty of her own dirty ideas.

"Castle, I promise, it's nothing major."

Beckett continued to protest as they made their way down the starkly lit hallway. Castle had one hand on her back as he guided her. Beckett's left hand was occupied with clutching her right shoulder, which made her wince every time that she moved it.

"Honestly, Castle; I just dislocated my shoulder. I've put it back in, and some yoga and rest will be enough to take care of it."

He ignored her in favor of looking for the proper service desk. Beckett rolled her eyes as Castle spoke with one of the nurses, laying on the charm pretty thick to get what he wanted. Two minutes later they were in the examination room.

"I'm pleased to inform you, Detective, that you have no extensive damage." Dr. Kidd informed them. "You set it back right away, and you didn't pull any muscles or anything in the process, so it should be fine. Just give it a couple of days' rest, and try not to fall down any stairs again any time soon."

"I was pushed." Beckett grumbled.

"And could have been grievously injured." Castle reminded her.

"By a suspect that we would have caught, but you had to freak out about me instead…"

"I think we're all finished here." Dr. Kidd said quickly. "You won't need any medication and this was just a preliminary examination, so you won't need to fill out any more paperwork."

"Thank you." Castle said as Beckett hopped off the table.

"Thanks." Beckett smiled at the doctor as he left the room, before glaring at Castle.

"Would it help if I said I'm sorry?" He asked, grinning goofily.

Beckett rolled her eyes and reached for her clothes. "Just focus on getting the suspect next time, okay, Castle?"

"You know I can't promise that." He said, his voice soft.

They stared at each other for a moment. It was Beckett who gave in. "Okay, fine; but at least try."

Castle nodded.

Beckett reached for her clothes again, but he stopped her by grabbing her wrist. "You know…" He said slowly. "Nobody's going to be coming in here for a while."

Beckett knew that tone. She glanced at the door. "Castle, we're in a public hospital; emphasis on the word 'public'."

"Yes, but we're in a private room at said hospital." He pointed out. "It's not any different from the interrogation room at the precinct."

She considered it. He did have a point, and he did owe her for losing their suspect and dragging her all the way here for no good reason. And it had been three days…

"All right. But we have to be quick." She warned him as she stripped off the paper nightgown the hospital had given her. Castle also shed his clothes with the speed and accuracy of one that has gotten used to doing it where he might be caught. The funny thing was, he'd learned how to do that after he'd gotten with Beckett.

Beckett was peeking through the closed blinds to make sure no one was headed towards them (and locking the door) when Castle pressed himself against her, scattering kisses on her neck, back and shoulders.

"Hello to you, too." Beckett said huskily, turning in his arms so that she could face him – and kiss him properly. "Is that a tongue depressor, or are you just happy to see me?"

"Well, it can be used as a tongue–" Castle's smarmy comment was cut short as Beckett kissed him, their tongues tangling together wildly. Her fingers speared through his hair, lightly scratching his scalp as she tugged his head downwards.

"Examination table." She gasped out.

"Nah." Castle disagreed. "Here's fine."

He punctuated his decision by hoisting her up against the door. Beckett wrapped her arms and legs around him. After a moment or two of shifting, they had the right angle for him to thrust up into her.

"Comfy?" Castle asked. "You did just–"

"Oh my gosh, Castle, will you please shut up about my fucking shoulder?" Beckett demanded. She dug her heels into his lower back. "Now this was your idea, so hurry up and fuck me."

"Such language, Detective." He growled with pleasure. But he began to move, and that was all that Beckett cared about at the moment.

While Beckett would never admit it, as it was a remnant of her younger, reckless days, she did love the thrill of possibly being caught. It was the only reason that she got it on with Castle at the precinct. Well, that and the fact that he was pretty damn sexy…

Castle loved this angle – he got the benefits of missionary position, but a much better view. And Beckett knew this, the minx. She angled her head back, stretching her arms out to brace her hands against the wall and door. If he hadn't already gotten used to seeing her in all of her naked glory, the sight would've made his eyes pop out of his head.

"God, Kate… you are such a tease." He panted.

Beckett laughed. "You… enjoy it." She replied, her breathing becoming more erratic with every mounting second.

He couldn't hold on. He just couldn't. He was going to…

Beckett peeked out from between the blinds again. "Shit! Castle, there's a nurse headed our way!"

The idea of being caught flooded Beckett's mind and she came just as Castle, too far gone to even register her words, also released. She didn't allow herself time to bask in the afterglow, however, sliding off of him and snatching up a bunch of tissues from the sterilized counter.

"Use these!" She hissed. Frantically wiping herself up, she snatched her clothes from the chair, getting dressed faster than she had since she was last late for work (six days ago, in case you were wondering).

Castle had just finished buckling his belt when there was a knock on the door. "Are you two almost finished in here?" The nurse asked, opening the door and sticking her head in.

Beckett gently stepped on Castle's foot to keep him from saying anything. "Yes; I just finished my examination. We're on our way out."

Castle considered making an 'examination' joke, but thought better of it when he saw the look Beckett was directing at him. As they made their way down the hallway, however, Beckett threaded her fingers through his.

"Apology accepted." She grinned at him.

Castle barely resisted the urge to do a fist pump.

Wow! First chapter up! I have six other chapters in my head for this but hey, if any of you are familiar with a hospital and want to give me an idea, just let me know! You can tell me in a review or in a private message, whichever you prefer. Now, on with the violating doctor's orders!