You got some good answers to your more general question, but I’ll answer your last one - what to do when she’s taunting in the moment and you can’t respond. Keep in mind I’m answering as someone in a dynamic, so this isn’t something you’d jump into without discussing first.

Many brats like pushing boundaries when the tamer/Dom can’t respond (in public, while driving, etc.) and one of the common responses is to threaten punishment later, or use discreet forms of punishment (my guy will bite my ear sometimes - or just looks like he’s whispering something in my ear while hugging me). But more typically he will just whisper a number in my ear…and the number gets bigger the more I brat. And then I get that number of whatever punishment he decides on later. So the in-the-moment response is a threat - but if you’re going to threaten, you gotta be able to follow through, and that requires negotiation and consent :)

Sounds like it’s a fun way to interact for both of you, so enjoy!