She stops you before you leave

She puts a hand on your chest stopping you from leaving right away “Hold it mister. One last thing” you watch as everyone else leaves wondering what’s about to happen. She picks up a note she had laying on her desk “Now your not the only guy I’ve had today but your certainly the biggest so if you ever need anymore lessons. Call me” She slides the note down your pants and gives your cock one last tug. “Now run along or your going to be late for your next class.