I open my legs. Lift my skirt a little, giving you a better view of me. You suddenly stop your lecture for a brief moment, and then you keep going. I smirk at you. I open my legs wider and I can feel your piercing gaze on my wetness. 

You unexpectedly sit at your desk to finish the lecture. I see you blushing. I hope I made you aroused. I like the idea of you touching yourself while you talk. I love teasing you. The bell rings, everyone begins to leave. 

"A word, Ms. Lee."

"Yes, Mrs. Andrews?"