"Are you always wearing such sexy lingerie?" comes the question as Miss Kanna, a new female teacher, arrives at an all-boys school for a sex education practicum. To ensure accurate measurements during students' physical exams, the teacher agrees to undress as well. Her short bob hairstyle contrasts with the pink bra hugging her big tits, the sheer fabric barely concealing her delicate nipples. The students watch intently, fully erect, as the measurement session begins. Their excitement grows, and so does the teacher's shifting demeanor. "Teacher, you've done this before, haven't you—touching erections like this?" When a student performs a vaginal examination, her pussy is already soaked and soft, trembling with arousal. "Oh, you're actually pretty sensitive. Did you get wet just from holding a cock?" The lesson's goal is to help students plan future relationships and gain deep understanding of creampie sex through practical experience. As the session progresses, students are given increasing opportunities to touch the teacher's body. "Eh, this is going too far…" she protests, but the male instructor insists, "All previous trainees have done this! Everyone, take a good look!" as he thrusts his cock forward. The boys erupt in excitement as she instinctively goes from deep throating into a 69 position. The shocking scene unfolds right in the classroom. "Everyone watch closely. At first, I'll insert normally... but if it's shallow, the girl feels... ah, aahn!" "And when I thrust deep like this, the guy feels... ah, aahn!" Overpowered by the male teacher's relentless piston strokes, Miss Kanna loses herself in pleasure, forgetting she's teaching. "Which feels better—deep or shallow?" he asks. "D-deeper... I want it deeper~" she moans, her lust fully unleashed. Their mutual desires collide as the male teacher erupts deep inside her womb with thick, pulsing creampie after creampie. "They say you're more likely to conceive when the guy cums inside during orgasm..." she explains dazedly to the students, embodying teacher devotion to the end. Thank you, Miss Kanna!