my favorite headcanon is that considering normal XL can pull off a woman easily, Fem XL can easily look like a very handsome man if she went undercover. like a cute young nobleman. This also isn't really a headcanon but once I thought about how no one could stop me from thinking about Hualesbians being the exact same height as their canon forms. like 190cm Hua Cheng and 178cm Xie Lian. Just two tall beautiful ladies, aahhh I would swoon over both of them 🥰 San Niang has once tried to fit XL's entire boob in her mouth. Xie Lian is a type of girl who doesn't often shave her legs unless she has a special event (when you have a tight budget, razors can be expensive!) But San Niang is like a 'waxes or can just afford laser hair removal yet still sometimes likes to keep a happy trail because XL finds it hot' kind of girl. I also love fem HC having intimidating claws but keeping a few short for reasons™️ I flip flopped around with headcanons for their chest sizes for a while but lately I've been liking XL being smaller chested but with GREAT booty and thighs (which I guess could go for normal XL too) and HC not as big as say, FX, but still more sizeable than XL (San Niang form probably closer to XL's size). Everything else I can think of are just headcanons for both hualesbians and their canon forms.