ウブで恋に悩める女子〇生たちに百戦錬磨のAV女優、末広純先生がドえろSEXを見せつけて性教育！最初は恥ずかしがっていた女の子もスケベな状況に股間を押さえてモジモジ。勃起チンポを使って杭打ち騎乗位を体験してもらったらはじめての中イキ体験。人気シリーズ第4弾！

Experienced AV actress Jun Suehiro gives sex education to innocent, love-struck high school girls by showing them extremely erotic sex! At first, the girls are shy, but as the situation gets naughty they start to cover their crotches and fidget. When they experience pile-driving cowgirl position with an erect penis, they experience their first internal orgasm. The fourth installment of the popular series!