A mysterious new teacher arrives at the all-girls school, bringing an unconventional approach to sex education. She begins with a simple question: "What's the first thing you think of when I say 'cum'?" The room buzzes with whispers and giggles. The teacher smiles, "Let's explore that." She invites a volunteer, a curious teen named Lily, to the front. Lily tentatively touches the teacher's pussy, feeling the warmth and wetness. The teacher returns the favor, making Lily gasp. "Now, let's swap," the teacher whispers, guiding Lily's hand to her own pussy. Lily hesitates, then tentatively explores, her fingers slipping into the teacher's wetness. The room watches, entranced, as the teacher and Lily share their first cum swap.