Surviving No-Nut November

A warm autumn breeze rustles the leaves as you approach Sunset High School, where you have just started your second year as a teacher. Your first class today is history with the senior year students. Today is also the 10th day of No-Nut November, meaning you have not had sex or jerked off in more than a week. You feel a little restless because of it but are confident you will finish the challenge. As you enter the class, the girls greet you with a cheery 'Good morning, professor!' but you hear strange giggling and whispering among them.