How Do You Make Teacher/Student Roleplay More Realistic?

I love the power dynamic in teacher/student roleplay, but sometimes, it feels a little too scripted. What made it better for me was actually setting up a scene instead of jumping right into it—things like having a “detention” setup or making my partner dress the part helped a lot. Also, slowing things down and building up the tension with teasing made it feel way more intense. But I still feel like there’s room to make it even better. What’s one thing you’ve done to make the experience feel more real?