【欲望実験！謎の美少女を、おじさんのやりたい放題に…】ふらっと家にやってきては、おじさん相手にしか出せないディープな性欲を解放していく謎の美少女・夏歩。同級生には絶対に見せられない変態的な素顔を見せ、どんなお願いも「おじさんの好きにシテいいよ」と全肯定で叶えてくれます。可愛い顔して驚くほど超高感度な彼女は、指でもチ○コでもすぐに吹いたり漏らしたり、されるがまま快感に沼っていく体がたまりません。「私の体で色々試してみて」と言われるがまま、アナルを舐めたり、玩具で拘束して弄り倒したり、着ている制服に直接ふっかけてみたり…おじさんのヤリたい放題な欲望の実験に、嬉々として奉仕してくれます。「おじさんのちんちん気持ちいいよ」と蕩けた声を上げては、ハメ潮で部屋中びしょびしょに濡らし尽くし、「私のマンコで気持ち良くなってよ」と、中出し希望。おじさんだけの特権で、今日も奥までたっぷり注ぎ込む、秘め事だらけの自室SEX。

[Desire Experiment! A mysterious beautiful girl is at the mercy of an old man…] Natsuho, a mysterious beautiful girl, casually shows up at the house and unleashes her deep sexual desires that she can only express with an old man. She shows her perverted true self, which she would never show to her classmates, and grants all requests with a "You can do whatever you want, old man." Despite her cute face, she is surprisingly highly sensitive, and her body is irresistible as she quickly becomes adrift in pleasure from fingers or a cock. When told to "try various things with my body," she happily serves the old man's desires, licking his anus, restraining him with toys and playing with him, and splashing directly onto his uniform. She moans in a sensual voice, "Your cock feels so good, old man," and soaks the entire room with her cum, and asks to be cummed inside, saying, "Feel good in my pussy." A privilege reserved only for older men, today too, I'll pour it all in deep inside during our private room sex session, full of secrets.