I'm the only one who compliments my tits. The sister-in-law has a complex about her too-big breasts, and her brother has a complex about his too-big dick.... When she became a high school student, her sister-in-law's boobs got bigger and bigger! But the sister-in-law is afraid that her big tits are...(Medium Character Seisen Version) (爆乳がコンプレックスの義妹が悩んでいたので『世の大半の女性は小さくて悩んでる人ばかりだから大丈夫』と勵ましたら…次の日から露出度UPで巨乳をさらけ出し、もっと見て觸ってほしいと超大膽に迫られた！デカチンがコンプレックスのボクが勃起を隠すと「大きい方がいいに決まってる」と今度は義妹がボクを勵まし勃起チ○ポを摑みデカチンを求めてきた！義妹は初めてのデカチン體験に何度も信じられないくらいイキまくり！)