Kiyone almost never readily accepts casual bondage as she's one of the gals who feels that being captured is bad for her job's performance record. If she ever does relent, it will only be in private with people she trusts. And that still may take less time to earn her trust than trying to take her by surprised as she is First Class for good reason. While her hair is often the first thing that people notice about her, she's also hiding nice legs under her pants, so it's nice to CCR her into shorts or even a chengsam before trying her in an emphasizing pose. The gag choice doesn't really matter for her.