"Erection has a central erection and a reflex erection~" "Let's remember oral sex! There is no loss~!" health and physical education classes. The theme of the 4th period is "about the mechanism of the male genitalia", so the female students staring at the penis of the male student who is lying on his back. A female student who licks the glans as instructed, "The blood vessels are protruding on the penis... Is the blood flow getting better?" "That's right. Please lick it gently. If you don't learn properly here, it's you guys who will lose." .You should feel the depth of affection by doing so.Because you will get used to it.This is a technique.Now you there, I will teach you how to masturbate, so show me your pussy Give it to me," and when another girl student started masturbating in front of the male student who was being sucked, she couldn't help but ejaculate (laughs). "Would you like to give a stimulus to the vagina this time? You know better about the penis, don't you?" "Do you know that the feeling is different between the missionary position and the back position? The angle and the position of the uterus will change a lot." "Looks like you've got the hang of it. When your husband is tired, please put him in cowgirl position."Congrats on graduating from virginity!