can i just say that it is such an honor to be asked to write for a rarepair. i am glad that you trust with me with your favorite barbie dolls... i will do my best to do them justice...
in a shocking twist, i WILL write dom top kaoru for once, mostly because aya is a bigger sub than her. definitely could not dom a girl like kaoru to save her life.
i think their first time would be very sweet... they seem like the type to take things slow in their relationship, going from hand holding to a kiss to eventually finally spending their first proper night in bed together. kaoru would make an occasion of it, giving aya a candlelit bedroom after dinner and all. aya knows it's happening, so she buys some pink lacey underwear and slips it on that morning. when kaoru finally gets to undress her and sees it, she can hardly process how beautiful she thinks aya is. she takes the time to kiss over all of her body, showering her in compliments and appreciation that make aya squirm. kaoru can't help but tease her for how wet her panties are just from kisses. she doesn't want to tease too much, though, the sight of aya desperate and wanting in front of her enough to drive her to action. she'd go slowly enough to make sure every part of aya feels good, hands rubbing her thighs while she licks at aya through that gorgeous pink lace. when she finally can't hold back her own needs, she straddles aya and locks their legs together, kissing her and whining into her mouth while they both finish from grinding against each other.
once they're all done, aya's limp and weak on the bed, admitting to kaoru that she'd never been able to feel that good by herself. kaoru says she's happy to do it for her anytime, and picks her up and carries her to give her a nice warm bath.