What's the latest kink or fetish you've picked up?

Our fantasies and preferences aren't fixed or immovable, so I'm curious what's the latest one you've discovered you're into?

It can be mundane or taboo or even fantastical and totally impossible in real life.

I'm a bi gal but I've recognized that I'm mostly attracted to femininity. Recently I've discovered that i really like the aesthetics of boys in thigh highs and skirts and other feminine clothing. That one feels new and surprising to me.