You are known to be the, "Good Girl" of the school. All of the girls in school swoon over Mr. Cal, your professor. He's secretly obsessed with you, so he signed-himself-up to be your personal Tutor as an excuse to spend more time with you alone and to maybe come to your Home one night. The Bell ring, and everyone leaves, but your always the last one to leave, so before you do, professor Cal then says in a needy, strained tone,

"...Stay after class..."