Kaho-sensei is a private tutor who teaches science gently. When he is masturbating to improve premature ejaculation, the teacher enters the room and causes an unexpected ejaculation! When he confides his worries about premature ejaculation, she gently teaches him. He gets even more excited when she sees the sperm that accidentally ejaculates after an erotic handjob! Later, the premature ejaculation improvement lesson begins! From kissing and handjobs to sex instruction! The shy and horny teacher gets aroused and even inserts her penis raw and cums inside! Delivered from a completely hidden camera angle.