WARNING: The following story is a BDSM story. I don't think it's squidgy or extreme, but if there's anything BDSM-y that you have a hard time with, PLEASE feel free to ask me. I will happily tell you if I plan to incorporate those elements into the story at any point. I'll also be happy to talk things out if you have questions.

A/N: Welp. I don't know. I just don't know. Once upon a time, I was adamant Carlisle Cullen, the epitome of a father figure in my eyes, had to be sexless. SURELY sex and that man could never go together. The thought itself was too profane.

Now he's gone all dom on me and I cannot. I HAS COMPLETELY LOST THE ABILITY TO CAN.

Ahem.

This is dedicated to myonlyheroin and capricorn75, because it's mostly their fault, and to Packy and the others who were a very bad influence.

SHOUTY CAPS DEDICATION TO BARBURELLA who reminds me she's been begging for C/E for literal years and I hath refused her. Baby, you are my everything, and I love you.

There were times Carlisle thought Edward Masen was flirting with him. He would stand a little too close or look at him from under his eyelashes with a smirk on his face that Carlisle wanted to kiss right off him.

Among other things.

More than once, he'd had to remind himself it wasn't something he should think about. Edward, fresh from medical school, was his intern and Carlisle his attending.

Besides that, despite a few somewhat arrogant tendencies, Edward was a delight to have as a student. He was very smart, eager to learn, and had all the makings of a good doctor. And he looked up to Carlisle. He wasn't about to abuse that.

Apparently, though, Edward had his own ideas.

About four months into their acquaintance, they found themselves alone in the employee lounge on a relatively quiet night. Carlisle was a little surprised when Edward came in and sat, not in any of the empty seats, but on the couch right next to him. Still, he didn't think much of it until Edward exhaled in a gust and said, "So."

"So," Carlisle said, somewhat bemused. He never could tell what was going on in the young man's head.

Edward swallowed hard, crossing his arms over his chest and staring at the ceiling. "I was at a party last week."

Carlisle leaned back against the couch, getting more comfortable, letting his eyelids droop. It had been a long shift. "Really? Well, I'm sure it must have been fun."

"It was." Another barely audible gulp. "It was a play party."

Carlisle's heart skipped a beat.

Before he could think of anything to say, Edward went on. "Met a guy there. Garrett Damon."

Carlisle's eyes flew open, and his throat closed off. He knew Garrett Damon. Intimately.

Of course he did, seeing as the man had been Carlisle's last submissive.

"We had a good time, and we talked. About you."

Carlisle remembered to breathe and inhaled loudly.

Edward rolled over slightly, propping himself up on one arm to look at Carlisle with lust in his eyes. "He said you were the only one he would sub for." He leaned in, his voice dropping to a low, sexy rumble. "I would for you. In a fucking heartbeat."

Carlisle barely caught a low groan in his mouth. His heart was threatening to hammer right out of his chest. This was so beyond inappropriate.

And he was way too turned on.

He had to swallow several times before he was sure his voice was steady enough to speak. "You know I'm old enough to be your father."

He was, too. Technically.

But it wasn't an 'I'm not interested,' and Edward knew it. His lopsided grin was so damn victorious Carlisle almost groaned again. Fuck him running, the young man was sexy as hell, and he was well aware of it, too.

"You don't strike me as the teenage father type," Edward said, all his arrogance back in full effect.

To Carlisle's shock, the young man moved to straddle him. He leaned in close. "But if you want to be my daddy, I'm down for that. I'll be such a good boy for you."

And with that, Edward Masen kissed him.

What Carlisle should have done was push the other man off of him. This was inappropriate for so many reasons, not the least of which was that they were in the lounge. The on-call room was a little more action-appropriate, but this was completely unacceptable. He needed to stop it. Immediately.

But what Carlisle actually did was kiss Edward back. Hard. Deep. And he grabbed his ass as he did it, thrilled, and turned on, and-

Footsteps in the hall had Edward rolling off him at the same time Carlisle pushed him away. Carlisle stood up, adjusting his labcoat around him, and walking away so fast, he didn't even notice who'd walked into the lounge.

He didn't stop until he was in the safety of his car, and then he hyperventilated a little, trying to calm down.

Something had to be done, and it couldn't wait. He was horny as hell, but as his rational thought returned to him, he was getting well and truly pissed off.

How fucking dare this kid?

He was angry and, at first, a little scared. The staff at the hospital knew he was gay, but he was pretty damn adamant about the fact it was no one's business that he had an impressive array of restraints, plugs, and paddles, among other things, and an in depth knowledge of how to use them.

As he calmed, he realized that while he wasn't quite sure what to think about this new development, he did trust Edward to be discreet about his proclivities. He thought he knew Edward's nature. Maybe he was arrogant and a touch spoiled, but he wasn't a vindictive asshole.

Could he take a hint, though? He was just a little bit spoiled. Nothing obnoxious, but Carlisle had been able to tell from early on that he was used to getting his way, and he was stubborn. There was no guarantee he wouldn't try again, seeing as Carlisle was more than a little interested.

But it couldn't happen like this. It shouldn't happen at all, but he couldn't risk another incident at work.

What then? Should he report this? Was it his duty to report it?

No, he'd given up the right and ability to report Edward when he kissed him back and groped his ass like some horny teenager. Besides, this hospital was the only one in the area currently accepting interns. Edward was younger than most interns. Early twenties were for making mistakes. Edward showed every sign of becoming a brilliant doctor. There was no reason to affect his career like this because he hadn't thought things through well enough. Carlisle wasn't vindictive either.

What then?

There was one way Carlisle could figure to take control of the situation, and that was to take control of the situation. Edward had said he was more than willing.

Carlisle banged his head against his steering wheel, instantly hard at the mere thought.

He straightened up, taking out his phone. He breathed in through his nose and out again, wondering if he was really going to do this. He wanted to. Good god, how he wanted to.

With a growl at himself, he sent a quick text to Edward's personal number with his address.

He waited, his heart pounding, and he still jumped when a text came through.

Be there in forty, Daddy.

Carlisle let out his breath in a gust and rested his head against the headrest, staring up at the ceiling of the car. He hoped he wasn't going to regret this.

~0~

By the time Edward knocked on his door, Carlisle was ready. He was clad only in his low hanging jeans, and he was rewarded for his choice when Edward groaned at the sight of him.

"Jesus Christ, you're fucking hot," he said.

Carlisle could have said the same for Edward. The young man was obviously freshly showered, his hair still damp, and he'd changed into jeans and a black t-shirt.

Fuckhot, as the kids would say.

Instead of telling him this, Carlisle grabbed him by his shirt, hauling him inside and closing the door a split second before he slammed Edward up against it. He kissed him, swallowing Edward's startled yelp. Edward was responsive to him despite his surprise and kissed him back, his hands going to Carlisle's waist and his mouth opening to his tongue. Since he had no idea how the rest of the night was going to play out, given what he had resolved to do, Carlisle allowed himself the satisfaction of grinding his hips against Edward's.

But when Edward moved his hands to his ass, Carlisle broke the kiss and took a step backward. He almost smiled at Edward's dazed expression, but somehow, he managed to keep a stern look on.

He cleared his throat. "Before any of that, we need to address your disrespectful behavior."

Edward blinked at him, still a little slow on the uptake, before he smiled. He turned around, bracing himself on the door and wagging his ass tauntingly at Carlisle. "You going to spank me, daddy? Do you want to take me over your knee?"

He did. He wanted to feel his hand against Edward's bare skin, wanted to feel the boy wriggling and writhing on his lap, feel his hardened cock rubbing against him. But he couldn't. Edward obviously wasn't taking this very seriously, and Carlisle needed him to. There was a definite point he needed to get across.

There was a huge difference between a sexual, sensual spanking and a punishment spanking. The lines had to be clear right up front.

So he picked up his folded over belt from where he'd laid it on the end table and brought it down on Edward's jean-clad behind. Hard.

"Ow. Shit. Jesus." Edward stared at Carlisle, obviously surprised, but his smile didn't falter for long. He grinned again. "You like it rough. That's-" He cut off in a yelp when Carlisle hit him again.

Certain that he had Edward's attention, Carlisle took a purposeful step backward, letting the belt hang limp from his hand. This was one of the reasons Carlisle didn't do spontaneous scenes. It was often difficult to navigate before he and his partner had had a long, in-depth conversation about limits and rules. Consent was not a grey area, and it was far too easy to manipulate a sub into something they didn't want to do in a sub/dom situation.

"Listen to me very carefully," he said, keeping his tone even. "Your… attraction is very much requited, but your method of getting my attention was absolutely unacceptable. If you agree that you've been a very bad boy and deserve to be punished, I will happily oblige you. If you don't agree," - he gestured at the door- "then you're welcome to reconsider. My door is always unlocked."

He paused, watching the expression on Edward's face for confusion or worse, fear. He was rubbing his ass, his expression tight but neither of those things. It didn't escape Carlisle's notice that the boy's breath was quick and his jeans were tented.

He raised his belt then, smacking it once against his palm, smiling inwardly when Edward's face flushed and he jumped a little. Carlisle could see he'd gotten his point across. If Edward stayed, he knew he was facing true punishment before they got down to any serious pleasure.

Edward took a deep breath, dropped his gaze to his feet and clasped his hands in front of him in the picture of penitence. "I'm sorry, Daddy."

Carlisle had to press his tongue against the roof of his mouth to keep from moaning. His cock jumped in his pants. Business first, he told himself. What he wanted most was to bend Edward over the couch and bury himself deep inside him. That was what he'd been fantasizing about for months now, but his sub's needs came first. Always. "I suspect you'll be very sorry shortly."

He took Edward by the arm and led him to the foot of the stairway. His stairs were wide and open toward the bottom. Plenty of room to maneuver. Carlisle positioned Edward facing away from him, toward the stairs. Then he stepped back.

"Get those jeans down."

Edward took another deep breath and started to toe off his shoes.

"Stop." Edward stopped. "I didn't tell you to take off your shoes. I said get your jeans down. You need to follow instructions."

"Sorry."

"Sorry, sir," Carlisle said.

"Yes, sir. Sorry, sir." Edward let his jeans puddle at his feet.

Carlisle smiled. Edward had left his boxers up, not as protection, he'd bet, but because he was now following Carlisle's instructions to the letter. Good boy.

He stepped up behind Edward, setting the belt down on the stairs in front of him, and stroked his fingers through the boy's soft hair. Edward jolted a bit at the touch but otherwise didn't move. Carlisle pet him for two reasons. The first was to let anticipation build. That was, he knew from experience, often the worst part of punishment-waiting for it. It had the effect of focusing the offender's attention.

The second reason was maybe more important. A sub should understand at all times that whatever was being done was being done for them, for their pleasure or, in this case, their own good. Carlisle wasn't about to punish Edward because it gave him pleasure to bring him pain.

It wasn't a turn off by any stretch of the imagination, but that was beside the point.

Carlisle moved his hand down Edward's back, still petting, feeling the sharp rise and fall of his shoulders. Then, when he felt neither of them could take anymore, he hooked his finger into the waistband of his boxers and pulled them down to join his jeans. Edward gasped, but he didn't say anything.

Reaching past him, Carlisle picked up the belt again. "I think what you did tonight merits a proper whooping, and that's what I intend to give you. You're more than old enough to know better, and I expect better of you than what you showed me tonight. Do you understand?"

Edward swallowed hard. "Yes, sir."

"I'm not going to stop if you beg me to stop. I expect you'll probably do so. Loudly. I absolutely will stop if you say 'red,' but otherwise, we won't continue on with our evening unless I'm satisfied you've been properly punished. Do you understand that?"

"Yes, sir." Edward glanced at him out of the corner of his eyes, his breath still quick, but a small smile playing at his lips. "I'm ready for my punishment, sir."

Carlisle had to fight a grin. Cheeky asshole, trying to get the lecture over with. Tough luck on that one, since he wasn't nearly done. But it quelled any remaining fear Carlisle had that he was unwilling about what was about to happen. "As you wish. Bend over and put your hands on the stairs. Get that ass out."

Edward obeyed quickly. Giving in to temptation, Carlisle caressed his ass. It was a great ass, nice and round and pleasing under his hand. "Very good," he said, and then he stepped back.

He got straight to work, bringing the belt down on Edward's exposed ass with enough force to make it clear he meant business. Edward cried out at the first strike, but he didn't stand or otherwise try to escape his punishment.

Oh, yes. He was very good. He wasn't new to this as Carlisle had feared.

So, keeping up a steady tempo of smacks, Carlisle began to lecture again. "What you did today was completely unacceptable. You work in the medical field. You deal with people's lives. Your professionalism should not be compromised by your desire under any circumstances. Is that clear?"

Edward wiggled, bending his knees and straightening out again. "Ow. Fuck. Y-yes. Yes, sir. I'm sorry, sir."

Carlisle picked up the pace but not the strength of his blows. "This isn't because you could have embarrassed me. This is something you need to learn. This is your reputation and your career. That's not something you should play with."

It was getting noticeably harder for Edward to hold his position. His ass colored beautifully. It was quickly turning a deep red tint. "I'm sorry," he said, his voice much smaller now than Carlisle had ever heard. "Ow, shit. I'm sorry. Please."

"You think you've learned your lesson?" Carlisle asked, bringing the belt down hard once. Twice.

"Christ! Yes. I'm sorry. I won't do it again. Fuck, I promise."

Such a delightfully filthy mouth. Carlisle brought the belt down across his ass with bruising force three times, making Edward jump and cry out with each one. Then he tossed the belt to the side and took Edward's arm, pulling him up and into a hug.

Edward wrapped his arms around Carlisle's waist, instantly burying his head against his chest. He trembled, his breath ragged, but he wasn't crying. That was telling, Carlisle thought as he pressed a comforting kiss to the top of Edward's head. Part of punishment was the release, the catharsis. It was something they would address if Edward was his sub.

But that thought could wait for later.

For now, Carlisle rubbed Edward's back shushing him. "Shh, all over now. You're so good, Edward. Very, very good. You took your punishment very well. I'm proud of you." He rubbed his hands over Edward's ass, making him hiss. Carlisle groaned. "Your ass is so hot."

Edward huffed against him. "Yeah, no shit."

Chuckling, Carlisle kissed Edward when he lifted his head. Carlisle groaned again, this time into Edward's mouth. The boy's kiss was fervent, and any fear Carlisle had that he'd gone too far with him vanished in an instant. He could feel Edward's cock rock hard against his belly as they kissed.

Now, Carlisle let desire take him.

He broke their kiss and moved his mouth to Edward's ear. "You want me to fuck you, Edward?"

"Yes. God, now. Please." Edward made to take a step but quickly tripped over his puddle of jeans, falling heavily into Carlisle's arms.

"Now you can take your shoes off," he said with a laugh.

"Hey, thanks," Edward said, holding on to Carlisle's arms to steady himself as he kicked his shoes, pants, and boxers away.

Carlisle took his hand, leading him up the stairs to his room. Once he got in the door, he turned Edward again to him, pulling his shirt up and off before he pulled him into a rough kiss. Edward matched him easily, kissing him between little moans and whimpers, the latter probably having to do with the way Carlisle couldn't stop squeezing his very well punished ass. "You should let me take care of this. I have some salve-"

Edward shook his head. "I'm fine. I need you now." He'd unbuttoned Carlisle's jeans, tugging at them.

When they were both undressed, Carlisle took Edward's earlobe in his mouth, nibbling. "Lay face down on the bed," he said.

Edward pulled back a bit, smirking. "You're not going to beat my ass again, are you?"

"Tempting. You can be a little shit sometimes, Masen. But no. There are other things I want to do to your ass tonight."

"Thank Christ," Edward said, flopping face down on the bed with a jaunty little bounce that made Carlisle's cock twitch. He turned his head to the side, watching as Carlisle rummaged through his nightstand drawer for condoms and lube. "I am sorry about work, by the way. I know that was a dumbshit thing to do. It's just you're so fucking hot, and after I talked to Garrett about you and this, I couldn't even think straight."

"Yes, well, I've often thought you could benefit from a sound spanking or seventy." He leaned forward to kiss Edward sweetly once. "But don't apologize." He gave Edward's ass a playful smack, making him gasp. "You've paid the price, and you're forgiven." He kissed him again, more seriously this time. "And I'd be lying if I said I hadn't thought about having you in my bed before."

He sat on the edge of the bed then and poured a generous amount of lube over his fingers. Edward clenched and sucked in a breath when Carlisle's hand brushed over his tender skin, but he relaxed again when he drew a finger down his ass crack, spreading the lube. He worked one finger, then another into Edward's tight hole, feeling an electric jolt of pleasure that went straight to his cock every time Edward made a little noise at the back of his throat.

"It's so good to have you here like this. Good god, you're beautiful, Edward."

Edward's response was a deep moan, and he pushed back against Carlisle's hand. "Need you to take me now. Please. Please, I've wanted it for so long."

"You ready for me?" Carlisle asked, working two fingers inside him.

"Yes. Please. Now."

"Bossy bottom," Carlisle murmured, leaning down to press a kiss to the hot skin of Edward's ass.

He stood and moved to the foot of the bed, pulling Edward toward him. He laughed at Edward's startled cry. "Kneel at the edge, and rest your chest on the bed."

It would have been hilarious how quickly Edward obeyed if it wasn't so damn sexy. Carlisle grabbed the condom from where he'd laid it, ripped it open and rolled it on, unable to wait any longer himself to be inside Edward.

"Holy Christ," Carlisle moaned, watching inch by inch of him disappear into Edward's tight, hot little hole.

"You're so fucking thick," Edward groaned, his words muffled slightly as he had his face turned into a pillow which he appeared to be grasping for dear life. His back arched a bit at Carlisle's slide.

"Is this okay? Are you okay?" Carlisle asked, stilling though it was the last thing he wanted to do.

Edward gave a shaky laugh. "This is amazing. Keep going. Fill me up."

Sweet mother of pearl, this man was going to be the end of him.

This wasn't going to take long for either of them. That much was clear almost instantly. Carlisle could have come from listening to Edward's moans alone. Still, wanting to make sure Edward was sated first, when they'd gotten a comfortable rhythm going, Carlisle took hold of his cock as he fucked him.

"You like this baby?" he asked, keeping his free hand at Edward's waist, steadying him.

"Yes. Yes. Fuck, yes."

"Are you going to come for me?"

Edward whimpered, a moan of pure pleasure as Carlisle's balls slapped against his ass. "Yeah. Like that. Please. Harder. Yes."

He came hard, pulsing in Carlisle's hand, screaming his name.

When he was spent, Carlisle moved both hands to his hips, digging his fingers into his skin, pulling him back toward him, slamming into him once, twice, three times before his own release was triggered.

So good. Better than he'd had in a long time, and he told Edward so as he flopped down on his back on the bed, discarding the tied off condom in the wastebasket by the nightstand.

Edward was breathing as hard as he was. He crawled up the bed so he could lay beside Carlisle, on his belly. He looked at him through hooded eyes and grinned. "Yeah, well, you're not so bad yourself, old man."

Carlisle rolled his eyes and leaned in to kiss Edward. A slow, sensual kiss that left the younger man sighing in contentment.

Edward looked sleepy when they pulled back, so lovely. Carlisle ran his fingers through his hair until he made a face. "What is it?" Carlisle asked.

"If you still want to put salve on my ass, I'd appreciate it."

Carlisle moved instantly to get the cooling salve. Edward let out a loud groan the instant it hit his skin, and his whole body relaxed.

"You really mark beautifully," Carlisle said, rubbing the salve in with gentle hands, admiring the deep red with a splotch of purple here and there.

Edward scoffed, resting his head on his folded arms. "So I've been told." He wiggled, readjusting himself. "It'll look better in the morning," he said with an air of nonchalance.

Carlisle hummed his agreement.

"Can I stay tonight?" Edward asked, his tone just the slightest bit shy.

"Of course." Neither of them worked tomorrow, and there were things to discuss. Carlisle leaned in to press a kiss between Edward's shoulder blades before he lay his head on the pillow beside him. "Do you need anything?"

Edward shook his head and scooted in a bit. Not cuddling, just closer. He yawned. "I'm good. I'm really, really good."

Inclined to agree with that, Carlisle rubbed his back until he fell asleep.

A/N: Many thanks to my hand-holding team/enablers, Packy2.0, myonlyheroin, angelycdevil, and barburella. Specific, huge thanks to Capricorn75 because I legit would have still been on the floor in a ball if she hadn't been so patient with my endless litany of "WHAT IF" Thanks to jessypt and songster, my poor songster who may be on the floor with me before this is over.

So... uh. Hi?