In some belief systems, sex has power. Like the merging of two life forces.

[ the explanation is clinical, neither approving of or disparaging the act. Sex is sex and she's no prude, but she won't fault Hiyori for clutching his metaphorical pearls.

And it is frustrating anything she does with Aventurine means less. It tracks, considering how existing relationships were broken up before by the House's influence. ]

Well, just because it's less useful to them doesn't make it meaningless for us. Honestly, it makes me want to dig my heels in more.