Real announcer Aya Tanaka's correct sex course

The first erotic video in which instructor Aya Tanaka gives practical guidance to three ladies who lack sexual knowledge! There are many ways to lead a man to ejaculate with proper onanism (hand job) and oral sex (blowjob), how to deal with vaginal ejaculation (creampie), how to have group sex, etc.! This is a serious sex education video, so the sight of her suppressing her voice and writhing in agony is a must-see.