A Prof's Secret Playground

So there I was, in the midst of grading papers at my cozy home office. I mean, who wouldn't want to do that? But little did anyone know, beneath all the scholarly rigor lay a bit of naughty fantasy land. I started off with some mild role-play over the phone, yes, you read that right, with a student from another campus (of course we were careful about boundaries and no one was ever harmed). It got me thinking... maybe it’s time to explore something more daring in person, but still within those adult consents and lines of professionalism. So I'm throwing this out there: Is it okay for an educator to engage in some light bondage with a consenting adult student, just once? Or am I stepping into a landmine field here? Thoughts?