My Law Prof and I Are into DDLG Stuff - Advice Needed?

So here's a bit of a legal drama for you. I'm a first-year law student, and one day during a particularly grueling week in Property Law class, our professor, Dr. Miller, noticed me looking rather lost in thought. I have this thing where sometimes I act like a little girl - just for fun, you know? It's my way of coping with the stress of school, not to be confused with being an actual kid or anything. Turns out, Dr. Miller is into DDLG stuff too! He saw me and kind of took me under his wing in this unique mentorship way. We started meeting up for coffee outside of class. At first it was just casual chats, but then he began to use our time together for a different sort of learning experience - one that involved role-playing scenarios where I got to be the student and he acted like my strict teacher figure. It's not anything sexual or illegal, but it does involve some playful discipline and age-play dynamics. He sets me up with little tasks, quizzes, and even light-hearted scoldings when I 'misbehave' in our playtime. This went on for a few weeks until another student caught us one day during an after-school gathering. Naturally, there was quite the stir. Some students are fine with it, understanding that this is all consensual adult role-play between two adults. Others thought it was crossing some sort of line, especially since Dr. Miller is my professor. I'm proud of what we have, but I want to make sure I'm not being an asshole by engaging in something potentially unethical or unprofessional at a university setting. Am I the one out of line here? Is this okay to continue as long as both parties are consenting adults and no actual rules are broken?