usually im not a big cnc fan but i dunno. eva's unlocking all parts of my brain i guess. i'm thinking about it in the context of the vampire au; vampires are kinda known as being physically stronger, faster, etc than humans. maybe she's been overworking herself particularly badly, or maybe you've become too dependent on her & have a little crisis about not taking any cure that's being developed because of wanting to need her so she'll stay with you.
she, for whatever reason, says that she doesn't have any meetings to attend to tomorrow. that it'll just be handling paperwork and checking on the various departments. so, you get a little idea in your head.
maybe she tries to convince you she still has work to do, maybe she just glares at you, but either way, you push her into her soft bed. she (annoyingly) keeps trying to get up, so eventually you get a bit fed up and take her wrists into one of your hands, and you pin them above her head. it gets her breath to hitch, but not much else.
she's trying to get you to just listen, but you decide you'd much rather not. you hold her down by the stomach, gliding your fangs over her delicate skin as a warning. she stops moving as much, but still has that cruel look on her face.
somewhere in her gut, there's a lust blooming, relief spreading through her body over the fact that she can simply be weak and helpless now. she doesn't have to carry a thing—in fact, you don't want her to at all. she can struggle against you all she likes, but there's only one outcome. maybe she lowers a hand to intertwine some of her fingers. maybe she keeps ignoring your warning to earn harsher treatment. it's what she feels like she deserves, but you'll teach her that strictness has it's own care, too.
you make some light scratches across her body. you drag your fangs over her skin so slowly, just to hear her breathing sharpen. from her neck, down to her collarbones, and you slowly open up her clothing, too. you'll tease her on always having something cute on for you, biting the band of her bra and letting it snap back.
eventually, you reach the approximate location of her heart. you take your time there, careful to not actually hurt her, but just making sure she knows what she's in for. she struggles more the closer you get, trying to squirm away from your cold breath.
eventually, you make your way back up to her eyes, by which point she's grown far too desperate to keep trying to reject your sharp affections. when you sink your teeth into her lips, she whines, and you kiss her bloodied mouth again and again. it's a mess of saliva and blood that you gladly clean.
maybe you accidentally bite her tongue, too. but who can blame you? she tastes absolutely divine now that she's reciprocating.