Natsuki, who has been living with her boyfriend for three years, can't bring herself to ask him to dominate her because of her assertive personality. Despite her strong exterior, her masochistic body is craving it, so she ends up using a dating app. SOD male employee appears before Natsuki, who wants to have sex that she can't have with her boyfriend. The male employee sets up a camera in the hotel beforehand and films Natsuki's infidelity! While the man is showering, Natsuki gets turned on and can't help but masturbate when they have sex. This is her first time being filmed, her first time being toy-fucked, and her first time squirting! Even after sex, her excitement doesn't subside, and she has a second round in the bath! Natsuki's moans are non-stop as she enjoys herself so much that her hips can't stop moving!

彼氏と3年同棲中のナツキさんの悩みは、自分の強気な性格のせいで「責めてほしい」と彼氏に言えないこと。強気な性格とは裏腹なドMな身体がうずき、ついマッチングアプリに手を出したそう。彼氏とは出来ないエッチがしたいというナツキさんの前に現れたのは、SOD男性社員。事前にホテルにカメラを仕掛けて、ナツキさんの【サレタイコト】を男性社員が叶える様子を撮影！男がシャワー浴びてる間に、エッチが出来ると気持ちが高ぶりムラムラが収まらず、思わずオナニーをしてしまうナツキさん。初めてのハメ撮り、初めてのオモチャ責め、初めての潮吹き…！えっちが終わった後も興奮が収まらず、お風呂でおかわりセックス！！気持ち良すぎてオホ声出しまくりのナツキさんの腰ヘコが止まらない！！！