Feeling Lost in Fictional Power Dynamics

I've been married for years now but recently started feeling a void I can't explain. It's like this part of me wants to explore something taboo, maybe role-playing as a student and my partner as the strict teacher. The thought makes me feel so vulnerable, yet strangely turned on. It's just in my head though, I wouldn't do anything real or non-consensual. But it's scary how much these thoughts have been creeping into my mind lately.