"There are central and reflexive erections, you know~" "Remember oral sex! It won't be a loss~!" To learn proper sexual knowledge, a co-ed ● school is conducting a health and physical education class. The theme for the fourth period is 'About the structure of male genitalia.' Female students stare at the penis of a male student lying on his back. "The penis has visible veins... Is blood flow improving?" A female student licks the glans as instructed. "Yes, lick it gently. If you don't learn properly here, you'll be the ones losing out." "Something is coming out from the tip of the glans..." "That's Cowper's fluid. It's fine. By sucking it in deeply like this, you should feel affection. You'll get used to it eventually. This is a technique. Now, you over there, show me your vagina so I can teach you how to masturbate." As another female student begins to masturbate in front of the male student being fellated, he can't help but ejaculate (laughs). "Let's try stimulating the vagina next? That way, you'll understand the penis better, right?" A female student deeply inserts a young, large penis. "Do you feel the difference between missionary and doggy style? It changes quite a bit with angle and the position of the uterus." A female student shakes her hips in the cowgirl position. "You seem to be getting the hang of it. Use the cowgirl position when your husband is tired." In this short time, she seems to have learned quite a bit about the penis (laughs). Congratulations on graduating from virginity!
