The one in which Klaus and Caroline are mates and she's in heat. NSFW.

Day One –

Caroline shifted uncomfortably on her bed, the sheets tangled around her legs and sweat clinging to her feverish skin. Her cottons shorts were by her ankles and her tank top had been pulled down to expose her breasts that were now moving up and down rapidly as she tried to calm her breathing.

Every inch of her body was screaming for more… She needed more than her fingers could offer her.

She needed him.

Klaus Mikaelson was the bane of her existence, of that much she knew. Only him had the power to make her so damn well frustrated.

It happened more often than she cared to admit – she'd get this incessant urges for him; mind filled with thoughts on how it'd be to feel his skin against hers, how it'd be to trace the black ink that adorned his shoulder and back with her fingertips or even her tongue.

When that happened, she'd soon found out that the only possible solution was to seek her relief using her filthiest fantasies involving the Original Hybrid. The ones that she blushed vividly whenever she thought of, that made her blood boil and her lower abdomen curl under the sudden pressure that there would appear.

None of them were helping her this time.

Her orgasms only offered a small amount of comfort right before her body started to yearn for his touch.

And her mind… She couldn't stop thinking about him.

Caroline had always thought about him ever since they'd met, her mind had conjured fantasies and her flesh had enjoyed them all. Sometimes her need for him would become greater and she'd be tempted to go to him, to let him have her, but nothing had ever compared to what she was experiencing in that moment.

Her body was ablaze.

Every fiery cell of her body was now chanting his name in a constant tune that was driving her insane. The soft moaning as she came hard from her third climax that night was mixed with a cry of agony as she realised how little it had done for her discomfort.

Klaus. Klaus. Klaus. Kla-

No.

She interrupted her mind harshly, determined not to let him win with his stupid little games - she would not be his plaything.

And it scared her to see how her hands had acted against her brain's consent, unblocking her phone and her finger was already hovering over the name "Klaus Mikaelson"... If she touched the screen...

No.

She wouldn't call him. She shouldn't even want to see him.

Turning off her phone for security, Caroline forced herself to put her clothes back into place, forgoing the covers since the heat was already unbearable, and doing her best to try and sleep.

The alarm clock rang before she'd had the chance to get any rest.

Day Two -

"Did you have one of your witches curse me?" was the first thing she said to him when she stormed into his house that Friday afternoon.

Klaus was sitting in front of a canvas, stroking colours onto it with lazy movements of his hand. He did not turn to look at her and Caroline directed her hateful gaze to the back of his head, tempted to speed to him and break his neck out of sheer frustration. Knowing that he'd stop her and that he'd probably wouldn't take kindly to an attempt to his life - even if only temporarily - her better judgement decided against it.

Instead, she chose to carefully measure his reaction to her presence, his low growl humming in her ears and her eyes caught how his grip tightened around the brush, his knuckles turning white.

"I'm afraid I haven't done such thing, love. Perhaps you could tell me what made you think so?" his voice sounded clipped, like he was making an extreme effort to talk to her.

As he continued to paint, her attention darted to his canvas and her brows furrowed as her brain finally understood the picture it was making... Blonde curls, blue eyes, pale skin...

"Hold on. Is that me?" she asked, using that as a perfect alternative to answering his question.

Caroline could hear the smile in his voice as he said, "Yes... Do you like it?" he questioned with some uncertainty, finally glancing at her over his shoulder.

She swallowed at the intensity of his gaze and her body responded automatically with a nod. "It's beautiful." she said so she could feel as if she was still in control of her actions, though that obviously wasn't the case when it came to him.

"I was inspired." Klaus replied cheekily. "Tell me about this curse you seem to be enduring." he ordered quietly, standing up and turning to her.

Her eyes immediately darkened at how his lean, muscled body was enveloped in that Henley, his necklaces enticing her imagination as she pictured pulling him closer by them, her lower belly tightening with arousal as she wondered how it'd be to have his lips against hers.

Klaus observed with an equally lustful gaze as she unconsciously licked her lips, her breath hitching as he walked closer to her.

"Tell me." he said again, his hand resting on her upper arm.

Her skin burned with more intensity at the contact, despite the fact that her arm was covered by a cardigan. The more irrational parts of her mind cursed herself for that one piece of clothing.

"I..." she closed her eyes, "I can't sleep. Everything hurts all the time and I need..."

"Me?" he asked.

His voice wasn't teasing or full of smugness, it sounded resigned and he let out a long-suffering sigh. She opened her eyes at that, having expected him to gloat in the face of her need for him.

"Yeah." she confirmed in a small voice.

"I thought it wouldn't be so bad yet... I'll have to talk to the witches."

Caroline frowned, "So you did curse me." she accused dryly, the feeling of disgust overcoming even her arousal.

"I assure you, Caroline, whatever you are feeling isn't my fault." he promised, "You should sit. There are some things I have to tell you about."

She forced herself to tense up, despite the fact her body seemed to calm down instantly at his reassurance. His tone was unnerving – she could tell that something was seriously wrong and that he was worried.

Caroline for once did as she was told and sat down on one of the stools in his studio room, impatiently tapping her fingers against her legs as she waited for Klaus to drag another stool so that he could sit in front of her. "What is it?"

His eyes stared into her own with such intensity that, had it been anyone else looking at her that way, she would've looked away… But there was something about it being him that made her stare back; intrigued and curious and completely lost in all that blueness.

"Do you believe in soul mates, Caroline?" Klaus asked, his head tilting slightly to the side.

She frowned, "I- Are you serious?" he looked at her with some annoyance and Caroline sighed, "No. It's craziness to think that there'd be someone out there who's… Made for you or whatever. And if you're trying to say that you're my soul mate, I'm calling bullshit."

A smile spread across his lips so easily that she was mesmerized by it – too mesmerized to be annoyed.

"That's not quite what I'm trying to say, love. You weren't made for me and I wasn't made for you, that's not how it works. I am, however, saying that we are, indeed, a perfect match. At least according to ancient magic."

She shook her head, laughing nervously. "You're insane."

"Am I? Then how do you explain your symptoms, sweetheart? That need you feel for me… It intensifies every month for a few days, isn't that right? How do you explain the fact that when you're nervous, you want to seek me, that you feel safe whenever I'm around… Have you ever considered that, perhaps, there's an explanation for it all?"

Caroline took a deep breath, trying to understand how the hell her frustrated accusations of him having cursed her into being ridiculously turned on, turned into to him telling her they were bind by magic.

"Explain it them." She dared him without thinking, immediately wishing that she could take her words back – Caroline wasn't sure she was ready to hear whatever it was he had to say.

Klaus thought otherwise, because he gladly continued:

"Thousands of years ago, long before I was even born, the first werewolves were created. A village was in constant war with another and they were losing their battles. It was when one of the men had the idea of asking the witches for help… They agreed to make the men stronger so that they could defeat the others, but they it was determined that werewolves would have weaknesses. First, they could only turn during the full moon. And you also know of wolfsbane. However, every werewolf has a third weakness, one that's rarely ever mentioned since most believe it to be a myth: mates. Essentially, a mate is the wolf's equal and-"

"Hold on. So I'm your weakness?" Caroline said bitterly, an indignant huff escaping her lips.

Klaus rolled his eyes, "Every person you care about is a weakness to be exploited. And don't act as if you have not used this fact in your favor - tell me, sweetheart, why are you always the one to distract me so that your friends can execute their newest and dumbest plan to kill me?"

She shrugged. Damn him and his logic.

"Go on to the part where I'm your equal." Caroline muttered, making sure to inject an appropriate amount of sarcasm in her voice so that it wouldn't seem as if she believed in what he was saying.

And she didn't… But she couldn't help but think that it would explain everything so damn well. And maybe the part of her brain addicted to all those young adults fiction thought that having a mate was a least a little bit exciting.

He smiled a mischievous smile at her, his eyes glowing and she groaned as the pressure in her lower belly intensified – gods, she wanted nothing more than to reach out and have him, right there and then. But she couldn't. So they both pretended that he couldn't smell just how turned on she was in that moment and he kept on talking, gripping on the edge of the stool as if to stop himself from touching her as well.

"Gladly. If we're talking about packs, then traditionally you'll have an alpha male – in this case, that'd be me, making you alpha female… My queen."

"I'm not your queen. I'm not your anything." Caroline protested.

Klaus smirked, "Ah, now that's where you're mistaken. See, you are mine, love. You simply haven't realized it yet."

"I'm not-"

"Tell me more about your symptoms. You said you were in pain." He interrupted her and she glared at him for his rudeness, but sighed at being reminded of her discomfort.

"I just feel like everything is oversensitive and I'm so turned on all the time and I want you so much it hurts. I feel like I'm burning from inside out and nothing I do seems to help, except being around you. But I don't think that's a good idea, because my brain doesn't seem to work properly when you're around and I might attack you."

His lips twitched, "Now that would be quite something. Don't worry, love, I have no intentions of being with you until you're ready. I've been taking precautions so that I can make sure that we don't give in to the effects of the heat."

"Heat?" she asked. "I'm in heat? Like a bitch or-"

She did her best to ignore his victorious smile at how she'd accidentally made it seem as if she'd accepted they were mates and focused on his explanation. "It just means that you're need for me is intensified. It's supposed to make us both cave in so that it's ensured that I have my third weakness."

Caroline groaned, "So I have to be incredibly uncomfortable for days just so that you can have all the weaknesses the witches thought you should have. Amazing." She said bitterly.

Klaus chuckled, "I'm sorry, sweetheart. I have a coven working on a solution for your discomfort, but until then, I'm afraid you'll have to endure it a little longer."

"How long is it supposed to last anyway? The past times weren't so awful and I didn't even know they were a thing, so I didn't really count how long it took for it to go away. Why is this one different, by the way? "

Mostly because she already thought about him and wanted him constantly, so there hadn't been that much difference, but she wasn't going to tell him that.

"It's hard to say. I'm told that it lasts about five days. And I suppose that the reason this one is being more intense is because the past ones have proved to be inefficient, since we haven't mated yet."

The 'yet' at the end of his sentence made everything so real to her, her mind finally understanding that reality… She was Klaus Mikaelson's mate.

He could be lying, Caroline tried to convince herself half-heartedly, there's no proof he's telling the truth. But, still, she knew it in her bones that this wasn't a sordid plan to make her be with him – no, it was much more complicated than that.

She was Klaus Mikaelson's mate. And the idea didn't bother her nearly as much as it should.

Scared of the meaning behind those facts, Caroline buried her head in her hands, taking a moment to think.

"Ugh. This can't be happening!" she exclaimed and he remained silent, allowing her to have her freak out over it. And – rather pathetically, in her opinion – what was bothering her the most was how calm he was about it all and dread started to build up quickly inside of her, being represented by an accusation: "Why are you so… Normal? Shouldn't you be wanting me or something?"

She was being insecure, she knew.

But there was something about knowing that he didn't seem to be affected by her the way she felt he should be that made her worry. It was instinctive – and it was like something was wrong, because he should be mad with desire for her, just as she was for him.

Klaus snorted as if he found her question to be ridiculous. "If you think that I don't want you, you're delusional. I want nothing more than to push you to the ground on your hands and knees and flip your skirt up. Do you know how hard it is for me to stop myself when I know that you're wet for me even though I have not touched you? Do you think it's easy for me to sleep at night knowing that you can't close your eyes because you're hot and bothered and wanting me so bad that you imagine your fingers are mine to get you off? If my self control were any worse, Caroline, believe me, I would've claimed you long ago."

His voice came out husky and low and if she hadn't been sitting, then she was damn sure her knees would cave in. The arousal that had been a little more under control ever since she'd gotten there, was suddenly making her body tremble, shivers running down her spine and she unconsciously pressed her thighs together, hoping to get some friction as a soft moan echoed from her lips. Her eyes were closed and her face was bright red for being like this in front of him.

Her mind worked fast and she was already picturing Klaus touching himself while thinking of her and she was damn sure those fantasies would help her a great deal when she was alone at night.

"You should leave." Klaus warned. "I have limits, Caroline."

She wondered what it said about her that she hesitated. That she opened her eyes and stared into his darkened ones, taking a moment to think and pondering if she really wanted to leave, if she didn't want him to take her right in that moment.

Caroline sped away, thinking – no, not like this.

Day Three

She was seriously regretting not having caving in.

Fine, she didn't want to be with Klaus just because some ancient magic made her think that there was no other alternative.

But ever since their talk the previous day, Caroline couldn't help but feel that maybe it wasn't all because of the mate bond. Maybe it wasn't her intensified horniness. Maybe – and that maybe wasn't as big as she first thought it to be – she actually wanted him and cared about him.

It wasn't love. Not yet, anyway.

But it could be… It would be.

And perhaps she should be scared to know that she'd been paired with such a monster by forces beyond her control, but she couldn't find it in her to feel afraid. It was somewhat anxiety producing, but it had more to do with the idea of having found the person she knew to be the one and wondering how everyone else in her life would react to it.

She was nervous and she was preoccupied.

But she was also excited. Ridiculously excited. Like stupid, foolish grins that spread across her lips whenever she thought of him excited. Like making plans of going places and having him tell her everything about it excited. Like creating all these adorable fantasies that reminded her of the sappiest romantic comedies of all time excited.

And it also generated a whole different kind of fantasies. The not so innocent ones as she pictured just how much a thousand years had taught him, all of the things he'd do to her that she had no idea that could even be done.

It led her to some private-browsing Internet searching, finding out new things they could explore.

Would he like having her tied up? Was he interested in role-plays? Blowjobs, anal, eating her out, different positions… Her mind created all the most diverse scenarios, finding the ones that worked best for her and her vibrator in her oh-so-lonely bed.

And still, no matter how hard she came, the craving for him seemed to intensify. In the end, her body was covered in sweat and if she were human, her temperature would definitely be considered worrying.

All of her instincts yelled at her, telling her to seek him again, that only him would make it all better… But she had to be strong.

Just a few more days, Caroline thought, just a few more days and I can make this decision with a clear head.

Caroline uttered a groan when she realized just how slowly time seemed to be passing.

Day Four –

As she left the Salvatore house, thick raindrops started to fall from the sky. The heavy, dark clouds making it seem as if someone had seriously enraged Zeus. The powerful force of the wind made the trees swing back and forth vigorously, leaves falling from them and being carried away before they had the chance to hit the ground.

And when the loud sound of a thunder made the whole world shake, Caroline's first instinct was to speed to her car so that she could be safe inside her hoe as soon as possible.

But as she got to the door, the agony that consumed her body became too much and, rather irrationally, she saw herself running to the woods.

The way the rain hit her face as she put all of her vampire speed behind each step was almost painful, but it was somewhat cleansing. The cold air that would've made her tremble when she was human, now helped her get the teensiest bit of relief.

Her hair bounced with her movements, becoming heavier and heavier as the water clung to it, just like her clothes were beginning to cling to her body.

Caroline felt free.

Laughter escaped from her lips scandalously. The heat that'd been unbearable for the past week suddenly did not bother her that much, despite the fact that it was most definitely still there.

She felt like a young child playing in the rain; enchanted by the beauty of it all.

And then it her… She wanted to share the foolish, ridiculous, happy moment with him… She wanted Klaus to be there with her, wanted him toll his eyes at her when she asked him to dance with her in the rain, before spinning her around and pulling her close.

Caroline stopped in her tracks at these thoughts, the laughter ceasing.

The relief she felt, however small, allowed her to think a tad bit more clearly and it made her see just how much she wanted him and not only physically. It confirmed that her feelings really had nothing to do with her need for him… And perhaps she had noticed it earlier, but a part of her had still been wondering if those growing affections wouldn't go away.

They wouldn't. Probably not ever.

She sought the precarious shelter that one of the trees offered – it wasn't large enough so that it'd bar all of the water, but it was better than being completely unprotected – and reached for her phone in her back pocket, cursing herself for having been so careless and going out in a storm with it, and she started to debate with herself, biting her lower lip, anxious to come with an answer to the question – should she call him?

What would she even say?

"Hey, I'm in the middle of the forest and I know it's raining and stuff, but I really want you to be here."

That would probably be weird. Plus, would he even come? He seemed really set on not having his way with her before she was sure she was ready for all he had to offer and, right in that moment, Caroline wasn't sure about being sure.

She could see herself being with him, that didn't seem so impossible to her anymore. And, frankly, it hadn't been such a distant possibility for quite some time now.

But eternity was still a concept too abstract for her to fully understand and how could she promise hers and ask for his in return when she had no idea what that truly meant?

Caroline shook her head – no, she wouldn't call him.

She would go to him and tell him that she was ready for right now. She wouldn't promise him her forever. Not yet. But it wasn't fair for him to ask her that and she would tell him that… And maybe attack those handsome lips of his in the process.

Surely Klaus wouldn't mind.

Ignoring her car a few miles east, Caroline started running the opposite direction, still reveling in the way the rain made her feel.

Breaking into his house for the second time that week, she found him once again in his studio, painting her. She decided to call him out on the fact that he'd obviously been stalking her and watching her cheerleading practice later. Right now she needed him.

Klaus turned to look at her – mussed hair and Henley that made her lick her lips unconsciously - his brow arching in a silent question as he stared at her and her soaked hair and clothes.

"It's raining." Caroline justified herself and his lips twitched with amusement.

"Really? I had no idea." he ironized just as a thunder echoed outside. "May I ask why you were in the rain?"

She shuddered, "It helped me think."

"About?" he prompted, clearly already knowing the answer.

"Us." Caroline breathed, "I thought about us and I realized that I really want you."

Klaus sighed, "Love, I don't think-"

"No, listen to me. I'm not saying this is forever; I'm not making any promises. I know that you don't think I'm ready and you're probably right, I'm not ready for eternity. But I want you, Klaus. Right now I really, really want you. And it's not because of this mate thing, it's because I want to be with you. So, what do you say? Can we just start this now and deal with the rest later?" she asked nervously.

Caroline stared into his eyes, seeing the indecision in them as he took a step closer to her that made her heart beat faster with the anticipation building inside of her, beating just like the wings of the hummingbird he had described to her. And with each step, the beating grew in inverse proportionality with the distance between them.

And she waited for her answer, not caring if it'd come in the form of words or in his lips meetings hers, but neither of them happened as he put his hands on each side of her hip and closed his eyes, resting his forehead against hers.

They were so close and Caroline wanted him so bad that she thought she might combust.

"I need you to be sure, Caroline."

"I am." She promised him. "I'm absolutely sure that I want you, Klaus."

The words had barely left her mouth when they were suddenly speeding through his house almost as fast as light and Caroline found herself in his room, barely having any time to acknowledge it before his lips finally touched hers.

It was neither gentle nor sweet, but desperate and frantic and just what she needed.

The unpleasant heat that consumed her body began to be replaced by a slightly different version of it, one that still made her want him like crazy, but that didn't hurt nearly as much and she figured this was the magical way of telling her they were taking a step in the right direction.

Her hands made their way to his hair, pulling his head down to deepen the kiss even more so, allowing his tongue entrance to her mouth and moaning at his exploration combined with the feel of his wandering hands harshly cupping her ass, his fingers squeezing her flash.

And in a sudden movement, he ripped her shirt apart, the shreds of it falling somewhere on the floor.

Caroline pulled back to roll her eyes at him and tore at his shirt, her hands greedily going for his torso, but he pressed her against the wall before she had the chance to touch him.

He held her wrists above her head and wore a smirk on his face, staring down at her semi-naked body, admiring her black lacy lingerie and she defiantly kept her chin up, refusing to blush under his gaze.

"You are beautiful, sweetheart." He complimented her in a husky voice, "And you're all mine. You may not be ready for eternity yet, but it hardly matters. Do you know why, Caroline? Because I will fuck you tonight until all you can say is my name. I'll be so engraved in your skin no one will ever stand a chance to have you the way I do. You may go and live your life apart from me for decades or centuries, but in the end, you'll come back to me, because you are mine. And after tonight, you'll never forget it."

He captured her lips once more in a bruising kiss and she knew they hadn't even begun, but she could already see what he meant. No one had ever made her feel like this – she craved every touch and the smallest brush of his skin against her made her cry out with need.

Perhaps it was just the heat thing, or perhaps it was he.

She didn't care, she just wanted him to fuck her.

Klaus let go of her wrists so that he could snap her bra open and start playing with her breasts, loud moans escaping her lips as he twisted lightly her sensitive nipples in his fingers.

His mouth found one of her breasts and sucked at it, his teeth causing her to gasp out his name in awe. Caroline closed her eyes and just enjoyed the feeling of all of the places where they were touching, her pussy throbbing in need as Klaus reached to unzip her pants and she worked it down her legs with her knickers.

His fingers worked fast and were already teasing her folds and pressing her clit and, gods, that felt good.

He swiftly threw her on the bed and she giggled, watching with lustful eyes as he undressed himself, his naked form making her groan and pressed her thighs together, and Klaus climbed on top of her, kissing her lips as passionately as he had before.

Caroline felt the now-familiar discomfort take over her body and every inch of her skin seemed to become an erogenous zone. And he seemed to revel in it, pressing his lips against random spots within his reach, his fingers coating themselves in her wetness as they entered her, curled to brush against her walls. They moved fast and just when she thought she'd shatter, Klaus pulled them away with a wicked grin.

"Do you want me, love?"

"Yes!" she cried out.

His eyes darkened as he ordered, "Tell me."

"I need you to fuck me. I need your cock inside of me as you claim me. I want to come around you and I want you to mark me. Please, Klaus. I really need you to-"

Klaus didn't waste any time and quickly turned her around so that she'd be on her hands and knees and he positioned himself against her entrance, the tip of his cock brushing against her fold.

"You are mine, do you understand me? You are my mate, Caroline. You belong to me and to no one else."

"I'm yours." She confirmed, her voice coming out strangled as her body trembled with need and that seemed to be all he was seeking, because he thrust deep inside of her, making her gasp loudly. "Fuck, Klaus!"

All of the agony of the past few days seemed to disappear in that moment as pure bliss spread through her body for one pleasurable second. She still craved him, but it was different, it was a desire and it didn't make her feel as if she was deprived of blood and oxygen.

His cock was hot inside of her and her walls were still trying to accommodate him when he started moving, his arm wrapped around her stomach. He began with slow and languid movements that made her want to cry in frustration – and she knew he was doing it on purpose just so that she'd ask him for what she wanted.

"That's how you want me to fuck you, sweetheart?"

"No – please, Klaus – I need harder. Faster."

Caroline didn't have to look at him to know that he was smirking, but she didn't care one bit as he did as she requested and started to fuck her harshly, their bodies slamming together and the sound of their skins meeting with every thrust echoed like music through the room, creating the most carnal symphony with the moans and groans they both uttered.

"You feel so good, love." He praised.

She started to feel all that pent up arousal that had driven her crazy building up inside of her rapidly and she knew that she wouldn't last long at all. All of the tension and frustration began to grow in her lower belly and suddenly she felt as if she was going to burst.

And maybe she did, because with a loud cry of his name, she came around him hard, feeling completely boneless and as far as she knew, she didn't have a body at all. She was nothing more than that feeling of completeness and lightness and happiness.

Nothing had ever felt better.

Her vision was clouded by the bright dots that shone intensively and if it weren't for Klaus holding her in place, then she wouldn't have been able to keep on that position.

"Come for me." Caroline asked as soon as she regained some of her senses, "I want you to mark me, Klaus. Please."

He seemed to enjoy her suggestion, working a little faster on his ministrations until that his tension snapped too and he came inside of her, muttering over and over again, "Mine."

And she couldn't agree more – she was his.

The feeling of safety and belonging that took over both of their bodies was quite inexplicable and Caroline couldn't help but smile widely as his cum stick to her skin.

She rested her head upon his chest as they lay down in a comfortable silence, his arm wrapped around her waist to pull her closer. The sound of his heartbeats was comforting and she briefly wondered if it was embarrassing that she'd love to fall asleep listening to it every night.

Fighting down a blush, Caroline focused on the quiet question Klaus directed at her as he caressed her hair. "Are you ok?"

She propped herself up to look at him, "I don't regret this, Klaus. Don't worry. I wanted you. I still do."

He smiled almost shyly at her, "Good… And your discomfort? Are you still in pain?"

She shook her head, "Nope. I'm feeling all better now. We should've done this days ago, by the way. Also, will I have to feel like that every month? Or that was only until you claimed me?"

"I believe it shouldn't be a problem from now on. Not if I have successfully claimed you… Though, I suppose we could try again. Just to make sure. We wouldn't want to put you through so much suffering again, would we?"

He pulled her on top of him, his hands already on her hips and she almost rolled her eyes.

Caroline knew that he'd make it his mission to indeed engrave himself in her body and mind that night and she had no doubt he'd succeed.

But she'd damn sure give him just as good as she got.

It was only fair, after all.

I'd forgotten to post this one. My bad.

Anyway, let me know what you think of it! Tell me what you liked, loved or hated in this drabble :)