姉が突然ボクに「研修で習ったマッサージの練習台になって」と言ってきた。詳しい話を聞くと姉のバイト先はどうやら抜きアリのメンエス！なんでそんなそとこでバイトするの？なんて言うわけもなくボクは練習に付き合うことに。すると密着接客と鼠径部リンパマッサージでボクのチ〇ポをオイル漬けにしてしごき上げ見事に昇天させる姉。それでも収まらないボクのチ〇ポを見て、教科書通りに裏オプ交渉までしてくる姉と家庭内本番行為に発展！姉は、No.1メンエス嬢になれそうです、本番アリですが…

My sister suddenly asked me to be her practice dummy for the massage she learned in training. After hearing the details, it turned out her part-time job was at a massage parlor that offered extra services! I couldn't help but wonder why she'd work there, so I agreed to help her practice. She then proceeded to give me a close, intimate massage, using her body to stimulate my penis with oil and bring me to a magnificent climax. Seeing that my penis still wasn't satisfied, she even negotiated for extra services, just like in the textbook, and we ended up having sex right there at home! It looks like my sister could become the No. 1 massage girl, but with the added bonus of extra services…