The new teacher, Kuruki, is both cute and beautiful. She's still new to the class. She has tanned skin and a tight body! Today is the sex education class at our boys' school. "What? I didn't know we'd actually get naked..." Realism is a tradition at our school! Please use your body to teach the difference between boys and girls' bodies during puberty! "T-this is the nipple... here are the labia majora, and here is the clitoris..." she says shyly, but it's cute how she tries her best to explain carefully. As she spreads her legs in an M-position and the student looks at the back of her vagina, something slippery and shiny starts... Now, next up is the mechanism of pregnancy and a practical exercise in sexual intercourse! "Well... we're teacher and student after all..." but the student's enthusiasm of "we want to learn!" is enough to get her to insert a dildo in the M-position! "Huh, your vagina feels wet!" "Oh!", the excitement reaches its peak as Kuruki-sensei takes the cock in her mouth! "Does it hurt, Sato-kun?" "I'm fine." "It's too big, so I can't go in any more... ugh..." Sato's young big cock goes in! "It's hard... harder than my boyfriend's," said the teacher. Your nipples are erect too. Are you excited? It's class! Please explain this to your students! Sato is trying his best too! Can you go deeper? What's it like inside? She's squirting! Please tell me what happens when you're in the back position. "Your penis is in the deepest position..." "The places that feel good are completely different in the missionary position and the doggy style position..." Is the inside of the vagina being pressed? Cowgirl position makes a great noise, teacher! The amount of fluid is much greater than before. Can I do it more vigorously? Is it okay to go easy now? "Sato-kun, thrust hard deep into the teacher..." Sato gives Kuruki-sensei a forbidden creampie!