Originally, a qipao was supposed to be a loose-fitting gown

Source for this? From living in Asia (not in China, but in a predominantly Chinese community), I've only seen qipao be form fitting, never loose. Even seeing older pictures of women in qipao, they're always form fitting. And more often than not, women seem to use them to intentionally highlight their figure.

Chinese communities tend to have a strong conservative bend, but that doesn't mean they're puritanical when it comes to sexuality, especially the sexually suggestive.

She's Korean, I thought?