Wow. Big boobs! Ms. Sera is a newly appointed female teacher with magnificent big breasts, just as rumored. Today, she has come to a boys' school for her traditional sex education practical training. First up is an erectile dysfunction test. Ms. Sera takes a penis in her hand and accurately measures its length and hardness. However, Ms. Sera uses the wrong strength and makes the student ejaculate, for which she apologises profusely (lol). It's not a punishment, but she palpates the inside of the vagina, and it seems she felt it more than she expected, resulting in a fingering orgasm. It's not like the teacher felt it. Just because he hasn't had sex in a year, this is a lesson after all (lol). Next up is a practical sexual intercourse session to understand gender selection. "No! "It's impossible!" Please don't say that. This is a recommended program to combat the declining birthrate! Sera-sensei, do you get wet when you're roughly assaulted? Her mouth is covered in saliva after the male teacher gives her a deep throat. Let's get the lesson going. A big dick from behind. She writhes in agony from the cock she hasn't had in a year (lol). She has to be pounded deep inside to give birth to a boy, so you guys are watching closely. She rides him while the students rub her breasts! The texture and sensitivity are amazing! Orgasm from being spanked on the butt! Haha, like an animal (lol). Sera-sensei forgot about class and became a female. "Deeper. Thrust in a lot. Tease me. Strangle me more. Everyone watch me get fertilized!" I repeatedly thrust and pound her with my hard cock, spurting out my thick sperm inside her and into her cute mouth! Thank you, Sera-sensei!