A beautiful swimming instructor named Minori at a certain fitness club. She has strong possessiveness and decides to make her favorite college student boyfriend after finding him working there. As she flirts seductively, trying to get closer to him, she asks if he likes older sisters... An experienced busty older sister, full of confidence in her SEX, tries to make him cum inside her... "Is this enough for you to call me yours?"

とあるフィットネスクラブの美人水泳インスタラクターの美乃。独占欲強めで大学生の男子アルバイトでお気に入りを見つけると彼氏にしようとお色気ムンムンで近づいていきます。「年上好きなんでしょう…?」年上の経験豊富な爆乳お姉さんが、自信満々のSEXで中出しさせようとしてくる…「これでもう私の彼ピってことでいいわね？」