A/N: This is Part of KC Bingo 2020, answering the prompt 'Losing a Bet'. It was inspired by an episode of House MD.

Thank you so much to coveredinthecolors, who beta'ed this and assured me it's good and also confirmed that it is, indeed, fluff, since I am completely stupid when it comes to that kind of story.

This is the first thing I'm writing/posting in months. Hope you enjoy it and, if you do, comments are much appreciated! :) Thanks for reading!

There is something fundamentally wrong, Caroline thinks, in pitying the white, rich genetically blessed art gallery owner she lives with. It feels like a waste of empathy. Klaus has the whole world at his feet. Wherever he goes, doors open, red carpets roll out, champagne bottles pop left and right. Which makes his brooding and scowling and antisocial behavior all the more inexplicable.

He isn't always like that, truth be told. When Caroline first moved in, Klaus was out and about all the time. Opening nights, exhibitions, soirées, premieres, parties - you name it. There were weeks when Caroline would barely see him. If he wasn't at some event, then he was at the gallery, if not at the gallery, then locked up in his studio. As far as she knew, he was pretty much living the dream.

"He's never there," Rebekah said when she pitched the idea of rooming with her brother to Caroline. She used to share an apartment with Elena, but her friend had decided to take the next step with her dumbass of a boyfriend and since it was her name on the lease, Caroline was the one having to find a new place. Her money was short and so were her options. "Nik has this huge apartment all to himself and no one to really watch over it. All the plants I give him die within a week. He could use a roommate, honestly, and you'd be perfect."

"Is he looking for a roommate, though?"

"Not yet. He will be, when I tell him to."

"Rebekah -"

"Just come and see the place, ok? It's worth it."

It made no sense that a guy with his lifestyle and bank account would want to share an apartment with a complete stranger, and Caroline had the very strong feeling the idea never even so much as crossed his mind. Judging by the spirited spat she overheard between the two siblings while she waited outside, it was exactly the case. On her request, Rebekah went in first to talk to him; Caroline would only follow if he agreed to it. She didn't want to see the apartment of someone who wasn't looking for a roommate. She was about to sneak out through the stairs and pretend she'd never been there when Rebekah wrapped a hand around her arm and pulled her into the apartment. Before she could even manifest her exasperation, her snake of a friend walked out and locked the door behind her, leaving the two of them there to stare at one another in complete astonishment.

"I think we've been set up," she said, affecting an awkward smile.

"Rebekah has never learned the meaning boundaries, I'm afraid," he said, not nearly as fiery as he'd sounded a moment before while arguing with his sister.

"Look, this was not my idea, ok? I was just looking for a place, and Rebekah said — You know what, doesn't matter. I'm sorry for the inconvenience."

Klaus looked at her — really looked at her — assessing her with such sharpness it stole the wind off her chest. Mikaelsons... they're an intense bunch.

"Since you're here," he said after a moment. "Can I offer you a drink for your trouble?"

He opened a bottle of wine that cost more than Caroline's previous rent and gestured for her to make herself comfortable on the giant leather couch in his living room. He wanted to know what she did for a living, how she knew his sister, why she was on the market for an apartment, what kind of place she had in mind, what her routine was like. It was all obvious questions you'd expect from a prospective roommate, but it never felt as though she was being interviewed. Conversation simply flowed, such an easy back-and-forth she didn't realize what was happening until it was hours later and Rebekah was back with a few shopping bags in her hands and a triumphant smile on her face.

"So, when do you move in?" she asked.

"Whenever she sees fit," Klaus replied, albeit glaring at his sister.

"Wait– what?" Caroline blinked, eyes cutting from one sibling to the other. "What do you mean?"

"A spoiled brat though my sister may be, she does have a point. This apartment could use another soul. If you feel so inclined, you can bring your things whenever it is convenient. The guest bedroom is furnished, but I can put it all in storage if you'd rather have your own set. There's also plenty of room for your personal things in the common areas, you can make it more to your liking. All I ask is that you don't replace the art on the walls. I rather fancy them."

Caroline's mouth moved wordlessly for a long time. "You... I thought you didn't want a roommate."

He shrugged nonchalantly, pouring himself another glass of wine. "I'm known to be rather volatile."

"But I can't — I mean, we didn't even discuss rent and expenses. I'm a med student, I can't afford this place."

"Nonsense. It's mine." Caroline drew the breath in for a righteous protest, and he added, "We can share the bills, if you insist."

And, well. It's not how Caroline likes to do business, way too sudden, with none of the meticulous in-depth analysis she usually applies to absolutely everything, from buying dish sets to choosing a new hairstyle. Moving in with someone she didn't know at all seemed like way too big a deal for her to simply skip those vital steps. She didn't even compile her pros and cons list. But…

The neighborhood was fantastic, the type where she'd never afford to live in as a student, it was so conveniently close to school, and Elena was pestering the hell out of her to move out so Damon could move in. She'd been to four apartments already: two were incredibly dirty — which told her everything she needed to know about the people living there; another had a single bathroom shared between four people, and the last had a creepy guy across the hall. The floor to ceiling windows alone in Klaus' living room would've sold her the place, and paying next to nothing? It was a once in a lifetime opportunity. The conversation with him had been rather nice, if she was honest, and he was Rebekah's brother, so if anything went crazy, she knew exactly who to call.

For the first so many months, the Klaus-is-never-home story was very true. After a while he started inviting her to tag along to some of his events, which she did in a few occasions, especially after he learned she could not say no to puppy eyes. "These people will bore me to death, love, please, save me." Klaus can be such a dramatic baby. The parties were great and the vernissages fancy as hell, but she didn't complain. Going out with him was fun. They got along well, the booze was always A level and Klaus enjoyed taking his time to explain stuff to her. Living with him, she got to learn more about artistic movements than in all her life before. It's more interesting than she ever gave it credit. Or Klaus made it seem so, anyway. The accent kind of goes a long way.

What Caroline came to learn about him after a few months, however, was that not everything was rainbows and unicorns for Klaus as it seemed at first glance. Nothing threw him off quite like his family. He only ever spoke about Rebekah, the only sibling who lived closed by and stopped for visits, even more so than usual after Caroline moved in. She did overhear him on the phone with Elijah a few times, too. The other three, though, Freya, Finn and Kol, Caroline only knew about through Rebekah.

"Nik doesn't get along with our siblings," Rebekah told her when she asked why he never spoke of the rest of the family. "I don't blame him. I don't know what mother nature was thinking when it gathered us all under the same genetic code, we're far too screwed up to be all in the same Thanksgiving dinner."

That was an understatement, in Caroline's opinion. Whenever Klaus went back to England to visit his parents and the rest of his siblings —- something he avoided like the plague but was apparently forced to do — he came back sullen and with a temper from hell. His sour moods could last for weeks. He'd stay locked up in his bedroom or at the studio for days on end, making Caroline slightly guilty for thinking she was the thing keeping him from circulating around his own place.

"Don't be ridiculous," he snapped at her once when she suggested she could move out if he'd changed his mind. "If you move out I will hunt you down and drag you back here."

It was perhaps slightly too aggressive an answer to be sweet, but Caroline gathers that was Klaus' way of saying he didn't want her to go.

She stayed and learned how to navigate the storms caused by his occasional family reunions. Let him do his thing, don't ask about his parents, offer him food from time to time. They make do. But it still bothers her to no end. Like right now.

It's been a month since he came back from London, more upset than necessarily angry, and he has barely set foot out of the apartment. He stays in his sweatpants and ink-stained Marc Jacobs shirts all day, wavering between having too much coffee and too much whiskey. He hasn't even been painting, which points to an all-time low.

When she walks out of her room all dressed up, putting on her earrings, he's sitting in front of the television, flipping through channels nonstop. His eyes are so unfocused she doubts he even knows what he's doing, his finger just pressing the button mindlessly.

Caroline checks her wristwatch and sighs. Bonnie is gonna be furious if she's late, but Klaus sitting on his ass like that is a waste of a perfectly fine eligible bachelor.

"What are you doing tonight?" she asks.

"Watching a movie," he says flatly after a moment, the information that he'd been spoken to taking a second to register in his brain.

"You mean porn."

He turns his face to her, eyebrows lazily arched. "If you want specifics. I'd ask you to join me, but people are already talking."

She gives him a look and then bends forward, fixing the straps of her high-heeled sandals. "Don't you get tired?"

"Who gets tired of porn?"

"Of watching porn?" He just shrugs. "Men," she puffs out with an eye roll. "Come out with me tonight. I'm going speed dating."

"That's so very boomer of you. It reeks of despair."

"It's old school, so what?" she counters, checking herself out on the antique floor length mirror. She turns to one side, then the other, tosses her hair back. "Is this cleavage too slutty? I don't want to look too slutty."

"What are you aiming for? Moderately promiscuous?"

She turns to him. "I want to say hot but with class, not I have nicknames for my boobs."

He snorts. "You look stunning, sweetheart," he says, his eyes lingering perhaps a bit too long on her décolletage.

"Thanks," she says, crossing her arms in front of her chest, suddenly self-conscious. "Back to the subject."

He sighs, turning back to the television. "Haven't they invented an app for that?"

"I'm tired of apps. It's cold, photos are almost never consistent with the truth and when you ask for a real-time one, all you get is dick pics."

"I hate to disappoint, but you're fooling yourself if you think men won't lie to your face, too."

"You can't blame me for wanting to stay hopeful that men aren't all as cynical as you. I'd have to give up sex forever if I thought that."

Klaus' lips quirk into a lopsided grin. "Well, I wish you good luck on your endeavor."

"I think you need to meet somebody, too," she insists. "You're turning into a couch potato, Klaus."

"I refute that."

"When was the last time you had a date?"

"I don't do dates."

Caroline rolls her eyes again. She has never seen him with the same girl twice, and very few have actually made it to his apartment. Mostly, he's the one who spends the night, not the other way around. He laughed at her face when she tried to tell him he didn't have to worry about bringing friends over on her account. "That's sweet, love, but I don't bring people over unless I have no other option."

"Why not?"

"Because when they know where I live it's harder to get rid of them. Besides, it's such a bore when they decide not to leave in the morning. Women can be rather spiteful."

She narrowed her eyes at him. "You are so full of crap. Typical. Sweet-talk women into sleeping with you and then call them crazy when they expect a minimum of respect in return."

"I respect them fine, I just don't want to have breakfast."

"Because that is such a commitment."

"It's far more than I'm willing to commit, yes."

"We have breakfast all the time. What, am I special?"

He simply smiled, the annoying dimples he uses to lure women into bed cutting into his cheeks.

"Fine," she says, stomping her foot. "Your last one night stand?"

"Should I be flattered you're keeping such close tabs on my life?"

"See? You're becoming this insufferable creature that I can barely tolerate that answers everything with sarcasm. Soon enough, I'm gonna have to move out and I don't want to because I like this apartment."

"What do you want me to do?"

"Come out with me. This way you get to meet twenty somebodies at once."

"Is that why you're going?"

"Last two dates I had were exclusive two hours of complete disaster I will never get back. At least this way I speed up the process of elimination."

"Over five-minute conversations," he derides.

"Five minutes is more than enough time. If they can't impress me or at the very least make me intrigued, then they're definitely not worth a second date."

"You make it sound oh-so-alluring. Like a meat market."

"Klaus," she says, slowly, planting herself between him and the random Discovery Channel show on the TV. "It's dozens of women literally just waiting to be hit on. Your odds at a happy ending are much better than if stay home and watch porn."

He regards for a beat and then sighs in defeat. "How can I say no when you make me out to be a wanker if I refute your argument?"

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"You brought a date?!" Bonnie cries out with indignation when Caroline arrives at the bar with Klaus on tow.

She considered giving her friend a heads up that he'd be tagging along, but she knows what Bonnie would say. She has been saying it for a while, any opportunity she gets. Just make a move already, Caroline! Fuck the guy's brains out and get over it or stop talking about Klaus all the goddamn time.

The fact she's brought him out to meet other people should probably tell Bonnie that she does not want to bang her roommate. Not that she wouldn't, because Klaus is obviously, you know... Alluring. Annoying, sure, prone to mood swings, but also witty and smart and refined and incredibly attentive when it comes to her, not to mention the whole exterior package thing. But they live together, she's friends with his sister, and it would be a totally stupid idea to ruin it with casual sex. Caroline sweeps the whole tension under the rug and keeps Klaus firmly on the realm of healthy, platonic friendship. But Bonnie would've found a way to claim otherwise if she'd said he was coming.

"He's not a date," she counters. "He's a dater."

Bonnie gives Klaus a pointed look. "Blink once if you were coerced into being here."

Klaus makes an effort of blinking, and Caroline gapes in protest. "I did not coerce you. Our couch has a permanent imprint of Klaus' ass. He needed to dive back into the pool. I'm just being helpful."

"I'm here for the drinks, mostly," he offers.

"Well, you just ruined these poor men's lives," Bonnie says, bobbing her head towards the line of guys standing around them, waiting for the thing to start.

She hadn't really noticed, but they're all staring at them. Not at her, or at Bonnie, but at Klaus, with looks that go from mildly concerned to openly hostile.

"Tough luck," she says with a light shrug. "Look on the bright side. They're gonna be forced to bring out their A game."

"Ahh," Bonnie says, smiling at last. "I see your plan now. That's actually smart."

"What the bloody hell are you two babbling about?" Klaus asks.

Caroline cocks him a disbelieved eyebrow. "Seriously? You can't tell?"

"Look around, Klaus," Bonnie says. "All the girls are checking you out."

"Not uncommon," he replies matter-of-factly..

"And the guys are shooting daggers at you," Caroline adds.

He purses his lips. "Also not uncommon."

"Exactly. This is competition."

"It's not a beauty pageant, love."

"Life is a beauty pageant," she retorts solemnly.

"Let's put it this way," Bonnie cuts in. "Little girls who kiss frogs expect them to turn into you."

Klaus puffs out a laugh. "Why, thank you, Bonnie, for the rather flattering image. But I don't think I'm that good looking."

"Now you're just playing dumb, which is not sexy, by the way."

He turns to Caroline, cocking his eyebrows in doubt. "Yes, you are, Klaus." A sly smirk breaks onto his lips, and she realizes he'd just set her up into singing his praise. Before he can follow up with a snarky and probably inappropriate remark, she slaps his arm lightly. "Oh, shut up."

"I bet you'll walk out of here with everyone's phone numbers," Bonnie says.

"Except for ours, of course," Caroline adds.

"Why not yours?" he asks, somewhat offended.

"You already have my number."

"Not in this context."

"Yes, because I already know you and all the nasty little bits of your personality. These women, on the other hand, don't."

"So you're attributing every relationship I've ever had to my looks?"

"I thought you didn't do relationships."

"Not normally."

"Well, not the whole relationship," she muses. "Just the beginning."

"The rest are the dimples," Bonnie remarks with a serious nod.

Klaus shakes his head despondently. "And here I was thinking women aren't as vain as men."

Caroline turns to him, putting her hand out. "Wanna bet? You can't tell anyone you're a trust fund kid who runs an art gallery. You're unemployed. Don't pay attention to everything they say, pretend to be distracted. And lose the accent. One hundred bucks says you walk out of here with at least… Twenty names. And I'm being conservative."

Klaus narrows his eyes at her. "You brought me out here to get laid and now you want me to jeopardize my chances?"

"On the contraire. I'm saying you can make yourself out to be as interested as you really are, and still get laid."

He finally takes her hand on a firm shake. "You're on."

A gong rings and they all turn to see a woman with a bright smile beckoning them all to approach. "Ladies and gentlemen," she starts. "The fun is about to start. Ladies, please, take your seats. There's a table for each of you. When I strike this gong, each man should sit at the first table they've been assigned to. When I strike it again, date's over, move on to the next."

"Wish me good luck, then," Klaus tells her as they turn around to order a drink from the bar before moving to their respective spots.

"You won't need it, buddy."

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"Hello, sweetheart," Klaus says pleasantly as he slides into the seat across from her.

Caroline lets out a weary exhale. "Hi, number..." she reads the tag on his chest. "26. What do you prefer, a weekend on the mountains or long walks on the beach?"

"Mountain, easy. Too much sand on the beach, it gets in all sorts of awkward places."

Caroline snorts into her martini. "That's actually the best answer I've had to this question so far. Or to any question, really." She raises her glass on a toast. "How's it going?"

He purses his lips. "I've had to answer that question unironically more than once, so I'd say not stellar."

"I'm sorry," she says around a chuckle.

"You don't look sorry."

"Because I'm not, really. It would be unfair for me to suffer alone. Seen anyone you like, at least?"

The smile on his face turns mysterious. "There's one so far."

"Just one?"

"It's hard to speed date when you're pretending to be slow, uninteresting and American, to be honest."

"You could just tell them the truth. That you were dragged here by a friend who took pity on you sitting around, watching porn all day. That would sure scare some of them away. Although some would probably ask what kind of porn."

"What about you?"

"I don't want to know what kind of porn you watch."

He rolls her eyes at her. "I mean, how's your night going?"

"Oh, you know," she shrugs with a lot less enthusiasm than she'd expected to have by this point in the evening. "A couple of contenders, I guess."

"Oh?"

"Still early."

"Forgive me for pointing it out, but you don't seem particularly excited."

She puffs out in frustration. "Every time I tell them I'm a Med student, they ask what kind of doctor I want to be, and when I say oncologist, they start listing every member of their family who's ever died of cancer. What am I supposed to say after a guy tells me his mother died of breast cancer? I'm sorry, would you like to talk about it?" Caroline glares when he erupts into laughter. "Not funny."

"I'm sorry, it's just that sounds like an awfully interesting conversation."

"Why is dating so hard? Am I too picky? Is it wanting a meet-cute too much? To wake up one day and ta-dam, the guy is there, right in front of me."

Something about Klaus' eyes soften just then. "If only it were that easy," he says, an almost wistful tone to his voice that gives Caroline pause.

Before she can dwell on it further, however, the gong sounds and it's time to move on.

"Here I go, then," he says in his American accent.

When her next prospect sits down, she's laughing at Klaus greeting the woman on the next table with a Hey, babe.

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"Here's to making the 1% 100 dollars poorer," Caroline says, raising her shot in the air before knocking it back.

"Cheers, I suppose," Klaus says dully, sipping from his bourbon.

"Oh, come on!" She bumps her shoulder against his as they sit side by side by the bar. "Don't look so gloomy. That's literally a pile of women in front of you," she says, nodding her head towards the cards sitting on the counter. "How many again?"

"Twenty nine," he grumbles.

"Twenty nine out of 40! That's more phone numbers than most guys will get in a year. Be proud."

"Of my deep cobalt eyes or my sultry lips? Yes, I heard both tonight."

Now it's Caroline's turn to explode into laughter while he just shakes his head helplessly.

"You don't have to be ashamed of your genetics, Klaus," she says. "It's not your fault some women are awkward flirters."

"Tell that to my stepfather." His tone visibly changes as he mentions Mikael, the dark clouds coming back to hover above his head.

Before it can get any worse, Caroline prods on. "So. How many of them are you going to call?"

"None."

"None?!" she gapes. "That's at least a month of guaranteed sex. A month where you won't have to watch porn, you can actually perform porn."

"Alright, you're making me sound like a deranged pervert," he objects. "I do not watch that much porn. That was one time and it is not my fault you lack proper etiquette when walking into someone else's bedroom."

Caroline chuckles. She did walk in without knocking, but, in her defense, it was 3 o'clock. What kind of person watches porn in the middle of the afternoon? She was blushing furiously for weeks before she decided to start teasing him instead as a way to diffuse the guilt. Luckily, he hadn't actually been doing... Anything. Although she did notice the suspicious volume in his pants. It was... Interesting.

"It's nice to make fun of you, though," she says. "That was the closest to a blush I've ever seen on your face."

"Whatever makes you happý, love."

"Seriously, though. Why are you not calling any of them?"

"These women think I'm one step away from being a caveman. It says more about them than it says about me that they're willing to give me their phone numbers."

She scoffs. "Don't be such a snob. They came here to get laid, too. You can't tell me you didn't like any of them."

"Well, there was one. But she didn't slip me her phone number."

Caroline' eyebrows crinkle together. "Really? That's kinda hard to believe."

"I guess your theory was flawed, after all."

"But it has been proved nonetheless. Which reminds me..." She lifts a hand, asking for another round. "I'm gonna drink all your money."

"My whole life has been a lie," Klaus says contemplatively. "I thought I had an enthralling personality, an interesting aura, that my wittiness made me charming, and now I find out I'm nothing but a pretty face."

"To be honest, you're also an endless pit of money." Klaus gives her a side eye, knocking back his drink. Caroline scrunches up her face in mock-pity. "Oh, boo-hoo. It's so hard to be handsome. Why are you so upset about that?"

"It's different when that is all you are. I've been deluding myself."

"Who said that's all you are?" Klaus turns to her with a pointed look. "No, that's not what I said. I said women would want to date you after five minutes because you're pretty, not that pretty is all you are." When he sighs, asking for another drink, still obviously unconvinced, she continues. "Look. My first real boyfriend was a total douchebag. He came across as funny and charming and thoughtful, but it was an act. He saw something he wanted and he knew he had to act a certain way to get it, because even at 17, I liked to think I had standards, even though I clearly didn't."

"Are you saying I'm also manipulative?"

"I'm saying, figuring out who people really are takes time. It takes twice as long if they're trying to impress you. You can take from this that all your relationships have been superficial and physical only, or you can believe that people came for the appeal and stayed for the content."

"Except no one has stayed. My temper seems to have a rather short expiration date, it drives people away. Just ask my brother." He punctuates his sentence with a wan smile, and Caroline understands, at last, that this is all somehow related to his family again.

She suddenly finds herself desperately at loss for what to say. Rebekah would offer something outrageous and mildly offensive that would still hit the nail on the head. Caroline just wanted him to have some fun, but instead she ended up pushing him right back to his bad place.

She considers apologizing, saying it was just teasing and she never really meant it, but what she winds up saying, however, is, "I'm still here, aren't I?"

Klaus looks up at her, a mix of surprise and something else she can't identify flickering through his eyes.

"Is that how you rationalize your relationships?" he asks.

She huffs out a little laugh. "I don't think that highly of myself. I'm a tall, long-legged blonde. That ticks some boxes, but it hardly makes me irresistible."

"I beg to differ, love. You're an exquisite beauty."

Caroline laughs a little, thinking he's obviously saying that just to be nice, but then she catches the look in his eyes, that intensity that always seems to rattle something deep inside of her. There's not a hint of condescension about him.

"I... Well..." she stammers, her cheeks burning hot. "Thank you."

"But that's not all you are. You're also strong, fierce, full of light. Anyone who fails to see what's underneath your stunning exterior is a fool." Caroline freezes under his stare, something almost reverent in the way he says it, a spark lighting up his face for maybe the first time in a month. It sends Caroline's pulse racing. She's suddenly very much aware of how close they are, the air around them simmering with energy, releasing a fresh batch of butterflies in her stomach. The room is a dozen degrees hotter than a second before, and Caroline doesn't know what to do, what not to do, thinks maybe she's had enough to drink already because her sense of reason is getting all fuzzy.

And then Klaus says, "I heard that on PornTube," and the tension eases off of her as the two of them crack up laughing together.