This got wayyyy more incesty than I planned. There isn't any actual sex between Rebekah and Klaus (Klaus isn't even present), but there's a lot of dirty talk that explicitly talks about Klaus and Rebekah fucking.

If that is not your thing do not read this. This is your only warning, and don't be mad at me if you read it anyway lol

It was infuriating, the way they looked at each other. They were all slightly parted lips and dark eyes, the scent of arousal annoyingly prevalent whenever she was in their presence, and Rebekah generally would have taken the opportunity to kill Caroline if she hadn't elicited smiles from her brother that she hadn't seen in centuries.

They were disgusting, really.

It was possible that she might have been a little jealous. Caroline stole her favorite brother, and it was infuriating to see him spend all of his time with the little tart. Worse even, Rebekah found herself liking said tart, and not in a friendly way. It wasn't until Nik was off on some trip that he insisted Caroline had to stay home for (some sort of 'danger' or some such that he believed she wasn't equipped to handle) that Rebekah realized the feeling might be reciprocated.

The constant arousal and little smiles were always around with Nik, but she found that it didn't go away when he left. Caroline would steal glances at her, teeth sinking into her plump lower lip in what was an accidental invitation, the tiniest movement of her thighs visible when she clenched them to stifle the scent of her wetness.

Rebekah was quite adept at recognizing the telltale signs of attraction, however. It was satisfying to know that Caroline wanted her, at least physically, and she'd had a debate with herself about how to handle it. Nik didn't like sharing his toys, after all, but it was possible that she could convince him...

They hadn't done it in centuries, and it was only a few (hundred) times over the last thousand years when they were on the run without any humans around and the lust was overwhelming, and Caroline seemed like the open-minded type, at least from what she'd overheard when Nik tried to coax her filthiest fantasies from her lips at night and forgot to burn sage.

It all came to a head when she and Caroline were in the living room relaxing in a comfortable silence, Caroline playing games on her iPad while Rebekah read a book. Rebekah nearly flinched when the silence was abruptly broken, never quite having gotten out of the habit of being able to run at a moment's notice.

"Have you and Klaus had sex?"

"What?" she asked, trying her best to sound scandalized.

"You know, like...together?" Caroline asked, as though she thought that Rebekah hadn't understood the question.

"Why do you want to know?"

"So...that's not a no," Caroline said slowly, her eyebrows raised slightly.

"Occasionally," Rebekah said, trying to sound as casual as possible, knowing that Caroline was probably judging them and that if she was too grossed out Nik might put her in a box for upsetting his flavor of the century. "Why?"

"Did you ever have threesomes?"

"Can you just ask what you clearly want to ask, Caroline? I'm a thousand years old and I've done enough dancing around the topic of sex for quite a few lifetimes. Spit it out."

Caroline gave her an offended look, though her face cleared quickly and she took a deep breath, letting it out sharply. "Do you think Klaus would be okay with us having a threesome? Or just us fucking?"

"That's a question for him, I think," Rebekah said slowly. She was quite sure he'd agree, but Nik had always been a loose cannon and it was best not to assume you knew what would happen.

"Okay," Caroline said, looking thoughtful, and Rebekah tried to put the conversation out of her mind for now as she turned back to her book. A few minutes later Caroline spoke up again. "He says it's fine."

"What?"

"I texted him," Caroline said with a face that indicated that it should have been completely obvious. "He said 'take pictures' but I'm 99% sure he was joking."

Rebekah knew quite well he wasn't, but she wasn't about to break that to Caroline. That was Nik's job. "Are you even going to ask whether I want to? You realize that this entire conversation has been about you, right?"

Caroline snorted. "Please. You keep looking at me like you want to eat me, of course you want to."

"I could actually want to eat you," Rebekah pointed out, deciding not to deny it, and Caroline gave her a smug smile.

"Yeah, okay."

They stood in silence for a few seconds, Caroline looking confused and a bit hesitant at Rebekah's lack of answer and Rebekah wanting her to make the first move beyond the proposition. It would be so deliciously satisfying to rub it in her face later. "Well?" Rebekah prompted, raising her eyebrows, and Caroline huffed before speeding over and catching her lips with hers.

Rebekah moaned at her taste, the light stroke of Caroline's tongue against the seam of her lips made her sigh, her mouth dropping open as she sat on the loveseat, pulling Caroline down to straddle her and making quick work of her dress, the garment ripped in half on the floor within seconds.

"What is it with you two and shredding this? Jesus," Caroline muttered, glancing around when she realized that the room was open.

"Not a fan of public sex?" Rebekah asked innocently, knowing full well that it was one of the fantasies Caroline had admitted to her brother during one of the nights they forgot sage.

Now that she thought about it, it was possible that Nik hadn't forgotten after all...

"Umm," Caroline started, trailing off and flushing.

"Now, Caroline... Let's not get shy on me..."

"I don't mind it," she said, meeting Rebekah's eyes with a determined gaze, and Rebekah smirked.

"Don't mind it?" she asked, reaching behind Caroline to unhook her bra and guiding it down her arms, immediately leaning forward to latch her lips around one of Caroline's nipples, her palm kneading the other breast, other hand fiddling with the waistband of Caroline's thong, tugging it harshly to give her pussy the friction she was clearly craving and was rewarded with Caroline's loud moan, her back arching, pressing her breast more firmly against Rebekah's lips, and she set a palm on Caroline's stomach to push her away, releasing her nipple with a last nip of teeth. "I think you like the excitement of it, don't you? The possibility that any of my brother's hybrid servants could walk in at any moment and see you writhing on his sister's lap. They won't know you have his permission, will they? They'll simply see you moaning my name as you ride my fingers, your head thrown back in bliss. The feeling of doing something forbidden turns you on, doesn't it?"

"Rebekah..."

"Hmm...Or perhaps you'd just like them to watch," Rebekah continued, her voice lowering to a whisper as she broke the flimsy lace of Caroline's thong and stroked her slick entrance with soft fingertips, her eyes fixed on Caroline's face "Do you want them to watch you bury your face between my thighs, Caroline? To see how you pleasure me so sweetly with your tongue?"

"What is it with you guys and dirty talk?" Caroline muttered, her voice strangled as Rebekah slipped two fingers inside of her. "Oh my god, Rebekah..."

"We know you like it," Rebekah bit out, tweaking Caroline's nipple with the hand that wasn't busy scraping her nails against Caroline's walls. "You like it when I whisper filthy things in your ear, don't you? I've heard you and my brother at night, you know. The way you scream for him makes me wet, makes me wonder what you'd taste like on my tongue, and I must admit that the way you look writhing on my fingers like this is better than I imagined."

She grinned as Caroline flushed bright red, taking a sharp breath. "Did Nik not tell you that you were being overheard? It's possible he forgot, I suppose, but we do tend to share everything," she said softly, tugging her fingers away from Caroline's pussy and pressing her fingertips to Caroline's lips. She took the hint, sucking her arousal away, her tongue darting over Rebekah's fingertips in a way that made her shiver. "Would you like us to share you?"

"Um...What?"

"Would you like us to share?" Rebekah repeated impatiently. "Do you want to share my bed occasionally? For me to fuck you with my fingers? For me to make you come on my tongue? I'll have you know that I'm the one who taught Nik how to do it so well, and I have no doubt I'm better. Would you like to test my theory?"

"Uhh-"

Rebekah smirked, slipping her fingers back down between them for Caroline to sink onto again, interrupting her mid-moan. "Or perhaps you'd rather have us both. Would you like Nik to take you from behind while I flick your clit with my tongue below you? Or perhaps you'd like for me to use a lovely toy to fuck your pussy, for our breasts to touch so deliciously as I reach around to spread that pretty little arse of yours for Nik's cock."

Caroline had wide glazed eyes now as she rolled her hips against Rebekah's fingers, her lips parted slightly, and Rebekah was a bit worried that she'd broken her for a moment. Had the girl never had those sorts of salacious thoughts? She wondered how far she could go...

"Or perhaps you'd like to give rather than receive, hmm? Would you like to lick my pussy while Nik's cock slides in and out so nicely? To occasionally graze the tip of him with that lovely tongue? Would you like to suck my come off of his cock, Caroline?"

"Rebekah," she gasped, her face bright red now, though Rebekah couldn't help but notice that her motions were growing more frenzied as she spoke, her fingernails digging into Rebekah's shoulders as Rebekah kept her fingers motionless, just allowing Caroline to find a rhythm of her own as she rocked against them.

"Yes?"

"I..." Caroline began, trailing off, and Rebekah waited patiently for her to finish her sentence.

"What, Caroline?"

"More," Caroline whispered, so softly that Rebekah wouldn't have heard it if she hadn't had supernatural hearing. "Tell me more."

"Naughty little thing, aren't you?" Rebekah whispered, not missing the soft gasp that escaped Caroline's throat. She'd file that away for later. "Hmm...What else could we do with you..."

She let the dramatic pause hang in the air, let Caroline whine softly, her hips still moving, though she seemed to be struggling to find her previous pace now that Rebekah had stopped speaking.

"Come on," she gasped.

"Hmm?"

"Tell me more, Bekah."

"Tell you more of what?" she asked, enunciating the consonants in such a way that Caroline seemed to shudder, and Rebekah would have thought that she'd come then and there if she wasn't knuckle-deep in her pussy. "What do you want to hear?"

Caroline swallowed audibly, the flush that had been slowly receding from her face returning in full force as she clearly realized what Rebekah wanted her to say. "Tell me more about what you and Klaus would do with me," she whispered. "Please."

"Very well, since you asked so nicely..."

Caroline looked like she might punch her, clearly frustrated with her teasing, yet hanging on every word she spoke.

"Would you like to ride Nik's cock while he tonguefucks me, Caroline?" Rebekah asked softly, tenderly tucking a curl behind Caroline's ear as she watched her eyes glaze over again. "Would you like to watch the way he moans at my taste?"

"Yeah," Caroline breathed, her eyelids fluttering.

"Hmm...Perhaps you'd tire of being a voyeur after time. Would you like it more if you rode him while I was on my hands and knees? He could sit up just a tad to wrap his lips around my clit while you bent to flick your tongue between the cheeks of my arse. I've seen you stare, Caroline. I know you've always wondered what it would feel like to touch. Perhaps you could watch him fuck me first, clean his come from my skin while I ride his face."

She hadn't expected Caroline to moan at that, was faintly amused by how enticed she seemed to be by the pictures Rebekah painted, and she wondered how far she could go, how filthy the stories could become before Caroline looked at her in horror.

"Do you like that idea, then?"

Caroline seemed to have given up her embarrassment at this point, just nodding eagerly, all curious eyes and worried lips.

"Would you like to drink from me, Caroline?" she asked quietly, bringing the hand that Caroline wasn't desperately riding to cup her cheek, brushing her thumb along her lips. "Do you want to taste my blood as I come on my brother's tongue? His cock? Or perhaps you'd like to taste his? Or both? All of us could drink from each other, our fangs pricking so pleasurably against that pretty neck of yours...Would you like that?"

She whimpered, nodding, and Rebekah smiled. Watching Caroline desperately seeking friction, so close to falling apart, was an image she found she liked, and she would be damned if this were the last time she'd get to see it.

"Just a bit longer," she crooned, curling her fingers against Caroline's walls, just shy of where the other girl's g-spot was, and Caroline moaned in frustration, her forehead tipping against Rebekah's shoulder. She wound her fingers in Caroline's hair, pulling her back, her nails scraping lightly against her walls. "Now, none of that. I want to watch you."

Caroline's breathing was ragged now, and Rebekah knew that her own underthings were probably soaked from watching, but she wasn't in a rush, and she wanted to take her time teaching Caroline how to use her tongue on a woman. It was a skill she'd need in the future, after all.

"Rebekah..."

"Are you close?"

Caroline nodded. "Tell me more, please," she gasped, the couch creaking underneath them as Caroline rolled her hips faster, a soft whine escaping her lips as she chased her release, and Rebekah suspected that a simple brush of her clit would tip the other girl over the edge.

She was having too much fun for that, though.

"There's very little we haven't tried over the years, you know. Have you ever thought about what it might feel like to submit? To allow us to be your masters if only for a night?"

"Klaus and I...we...I like it," she gasped out her head tipping back.

"Hmm, but have you ever wondered what it might be like to have two? To lick my pussy on your knees with your hands behind your back as my brother spanks you until you make me come? I happen to know that he does love the way red marks look on skin."

"Jesus," Caroline muttered, her eyelids fluttering, veins descending across her cheeks, fangs sinking into her lower lips hard enough to draw blood.

"I know he'd love to watch you squirm with a plug in that pretty little arse of yours, perhaps a toy in your pussy as well. Perhaps we'd tie your hands and watch you writhe in the sheets until you got just the right angle. There's always the option of spreading your legs open instead. I'd love to watch your arousal wet the sheets with your pussy spread wide as Nik and I have our fun in front of you. Would you like to watch him fuck me? Watch me claw at his back and scream his name as I come around his cock again and again? To watch his mark stain my thighs when we're done? Perhaps I could let you lick it from my pussy afterwards before you suck my come off of his cock, still desperate for just a little touch..."

She smirked as Caroline came. Hard. Her walls spasming around Rebekah's fingers as she moaned so sweetly, her nails making bloody scraped in Rebekah's shoulders, tearing her designer blouse to shreds.

"Not a nice way to treat your lover's clothes," she said softly as Caroline came down from her high, her eyes still glazed over. "Perhaps you'll make it up to me, hmm? Tell me, have you ever pleasured a woman with your tongue?"

"No," she breathed.

"Well I'll just have to teach you, won't I?" Rebekah said airily, having expected that answer. "Perhaps we should move to the bedroom then. I don't want your legs to ache from kneeling, no matter how quickly they'd heal."

Caroline was a surprisingly quick learner, eager for praise and soaking in every detail of Rebekah's reactions until she had her technique down perfectly, moaning as she lapped Rebekah's arousal once she came.

She couldn't wait for Nik to return, and she had a feeling that Caroline couldn't either.

So that happened. Let me know what you think. :)