okay i won't lie—i'm not particularly into findom myself, but i will always love anything where ran is head over heels for her idols in the most pathetic way (see my ayaran ask from ages ago!) and i will always enjoy good teasing and putting ran in some less than fortunate situations. so i can ENTIRELY work with this, and i hope it's a good concept for you still ^^

i really like the idea of yukina toying with ran in a bit of a strange, wholesome way... like she has a puppy crush on this cute girl who's doing so much for her, it's just fun to see how flustered she can get!! yukina probably has this account where she posts some faceless pics, lots of tit shots, the occasional nude photo for anyone who's willing to treat her well. ran... well, she seems to me like the type of girl who would get off to photos that kind of look like her idols. so when she finds this account and the long purple hair in the photos, she's instantly hooked. she'd probably send something anonymous at first, not really expecting anything out of it, but then she gets a photo in her DMs. something that teases her, yukina in just her underwear. and ran can't stop there, she needs to live out her full fantasy. so it becomes regular for them, sending money and getting photos or the occasional flirty message. it slowly becomes real for ran when she's asked to send a photo of herself, pulling up her shirt. she's so nervous she almost backs out, but she imagines yukina asking her, imagines what she'd say if she saw her body, and she can't do anything but comply. she hides away in the dressing room after a concert at circle and snaps the photo, no other thought than getting this girl's approval.

yukina has her suspicions right away—the background in the photo looks awfully familiar, and she swears there's a red tint in the hair she can see in the frame. she's endeared at the thought of ran acting so nice, so submissive in this way, far from her usual self. she starts to ask for more, not at first because she believes it's ran, it's only the thought of "what if". she asks her to wear some more revealing clothes outside when she knows they have joint practice, asks her to wear a collar underneath her school uniform and has to hold herself back when she catches a glimpse of it the next day. once she's entirely sure that everything she's doing is for ran, she gets more needy with her requests. the last thing she does is request that ran pierce her nipples and wear a thin shirt to show them off, knowing well that roselia and afterglow are both scheduled to practice at circle the next day.

the sight of it is hard to ignore. ran wears a white tank top and cropped shorts, easy to explain away as keeping cool in the summer weather. but she has a noticeable flush on her face the entire day, and keeps her arms crossed over her chest when she's not playing. she's probably too flustered to notice how it only makes the problem worse, how she pushes her chest forward and makes the piercings clearly visible through the fabric. it's even better than the photos, yukina thinks, she only wants to see them up close. it feels like ran is teasing her specifically— even more worked up and red in the face when all they do is pass each other in the halls. when practice is over and both bands are happily chatting away, yukina hooks her arm around ran's and pulls her into the nearest bathroom. ran doesn't have any time to ask questions before she's being kissed and pressed against the stall. one of yukina's hands is hastily pushing up ran's shirt when she mumbles, "i'm sorry, I couldn't wait for a photo. i want to see what did you did for me."

ran struggles to put together what she meant as her nipples are suddenly exposed to the cool air, still red and puffy from the recent piercings. they're simple barbells that frame her nipples well, pressing against her sensitive skin. yukina stares in awe for a moment before she takes one between her fingers and gives it an experimental twist. ran gasps and doubles over into yukina's arms, brain immediately frying from that touch from the one person she wanted it from most. yukina pushes a knee between her legs, keeping her upright as she toys a bit more with the piercing. "i'm not surprised that it's you," she continues, whispered into ran's ear as the girl seeks comfort by burying her face into yukina's shoulder. "you're a smart girl, mitake-san. did you know it was me you were getting off to?"

ran shakes her head and whimpers, trying to grind against yukina's knee. her hands grab whatever fabric she can find, tugging on yukina's blouse as she tries to stutter out a response. "i just thought about it. wished it was you."

yukina chuckles and extends her palm to support ran and keep her standing, spreading her hand across the girl's side. she keeps her thumb on ran's piercing, pushing it around gently, while her other hand reaches further down. ran is glad for the support, because her toes curl when yukina's hand slips beneath her underwear. the voice against her ear teases again, "so you couldn't get me out of your head. how can you say we're rivals when you'll do things like this for me?"

ran tries to shoot something back, but words fail her as yukina's fingers begin to work her up. she bites at the skin on yukina's neck to muffle herself, grinding without care and arching her hips forward, trying to entice yukina's fingers inside. it takes no effort at all, already wet from her nipples being teased. yukina's gone quiet as she touches ran, opting instead to watch as the younger's face grows bright red, as her eyes dart around the room looking for anything but yukina's face.

it isn't long before ran's attempts at staying quiet fail, until she's dripping through her shorts and crying as she cums on yukina's fingers. yukina slides her hand down ran's chest, feeling the fast beat of her heart for a moment until she tucks her shirt back into place. she hooks a thumb around ran's leather choker, and tilts her head. "i'll be expecting one with my name on it soon," she hums.