kink i dont talk about

my partner and i have been together for a few years but we never really clicked on this kink. last month i went to a party where people roleplayed teacher-student stuff and it was intense. i got so turned on by the power dynamics and the way they talked down to each other in that fake authoritative voice. came home thinking about it all night, woke up with an idea for a fantasy involving someone older giving me orders. wanna try something like this but dont know how to bring it up w her without making her uncomfortable. feeling kinda frustrated rn.