Naked! Shame! Co-education where men and women learn the difference in body ● School health and physical education! A girl student who blushes and touches her dick, saying, "It's big ... it's kind of hot ...". Moreover, this cutie. Class president! The importance of sex education is being called out these days! Still in the process of growth ● Because I am a school student, I have to learn the correct sexual knowledge! The theme of the first period is "differences between men and women in the secondary sexual characteristics". Around the age when the body of the opposite sex is really worrisome. First, let's feel the difference by touching the boy's body. "Come on, take it off. Let's show the virgin boys the boobs and pussy this time!" "Eh? I hate it ..." "You're the representative, the chairman, if you don't take it off, everyone's grades will drop. The chairman's girl student who feels responsibility and begins to take off. Ah! Exposed cute nipples and pussy! Exposed to the curiosity of boys, this is a shame! Shame! Face the boys and talk about the difference in hair thickness, and discuss the difference in the color of the breasts and nipples. This is a serious class, but it's really shameful! "Teacher, the chairman's nipples have erected!" While gently touching each other's genitals, the tip of the glans got wet ... Somehow, the chairman's handjob was amazing ..., Dopyu! Ah, even though it was a class, I was struck by the chairman (laughs).