Caught in the Act of Roleplaying a Student and Teacher Scenario

I recently started engaging with my fiancé in an unconventional roleplay scenario that I had been curious about for some time. We decided to explore the dynamic between a student and teacher, where I took on the role of his professor at university. It was exhilarating to watch him become more submissive as we progressed through our sessions; he would obediently bring me books and papers to grade in bed, and we'd have passionate exchanges that felt both playful and intimate. However, it's been a bit of a challenge maintaining this fantasy without letting it spill into our daily lives too much, I don't want him thinking I view real students differently now! Has anyone else experimented with such roleplay dynamics while keeping their real-life relationships clear?