Carissa has never really given a lot of thought to how the nobility lives, beyond deciding a decade ago she didn't want to be a court wizard because the mortality rate was appalling. Her plan was to start a magic shop, figure out who was the most important person to bribe, make them something beautiful every year for a present, and assume that sufficient to keep her out of everything else.
Her feeling now, looking at all of this, is - faintly infuriated? It seems very - fake - like they're playing the game of having sex, instead of just having sex like normal people. Carissa is not actually sure she is very interested in the game of having sex. She tends to have sex for advantage, which means that when she's having sex it's with people who have power over her, rather than people she has power over, but that's not a game, that's just how everyone's incentives are shaped. This is a game. The consequences are real but the thing itself doesn't seem any less fake, for that.
She understands, maybe, what Maillol was trying to tell her, that it wasn't all right for Keltham to have her because she said it was. That comes from the same world as this, a world where everything is a game, where someone might decide to put on these clothes and seduce someone just because it's fun, playing with the inevitable natural order of the universe but only that, playing.
Carissa is pretty sure that her actual sexuality, which she unfortunately needs to keep track of because there's no time in her schedule at present to learn to fake it, doesn't resemble this. It is about belonging to someone with the power to do whatever they like with you, yes, but - it's not about belonging to them because you're into that. It's not about the fact power is sexy, it's just about power. It feels like a real distinction, at least inside her head. Insofar as it features clothes like this at all they were definitely picked for her by someone who likes her in them, not picked out herself.
Okay setting aside her actual sexuality, which being the product of a human mind is going to be stupid and incoherent, what does she want? Some of the fancy outfits that look like they definitely couldn't have been manufactured overnight as part of an elaborate effort to convince Keltham that masochism is a real thing, some things that look like they'd obviously only work with the cooperation of the wearer, some things for farther in project corrupt Keltham which don't as obviously only work with the cooperation of the wearer - she tries to model Keltham's reactions about magic chastity belts and Keltham in her head is making a face but not a 'no' face so she'll grab that -
- she has a unhappy feeling that somehow looking at the more-dangerous stuff at all counts as flirting with Her Infernal Magistrix. Because everything counts as flirting with Her Infernal Magistrix, or at least everything done in the slightest awareness it might have effects on Her Infernal Magistrix. Anyway pushing Keltham too far too fast might make him decide to think too hard about the whole situation, so she won't get any of that. Yet.
"I think this is enough for now," she says, once she's picked out a couple of outfits for ballroom dancing, which she does not do, while sexually accessible, which pants work fine for, and the magic chastity belt, "unless you're apprised of the whole situation enough to have opinions and advise otherwise."