She confessed that she was my sister. There had to be some kind of mix up... or so I thought. But then one night, she showed up at my bedside. I could have brushed her off but figured I would just comfort her to help her relax... That turned out to be a mistake. Her enormous breasts and the feelings of love directed towards me were impossible to ignore. What started as an attempt to calm down quickly escalated into an uncontrollable arousal. As days went by, we found ourselves drawn together again and again, our relationship growing increasingly intense.

告白してきたのは妹だった。何かの気の迷いに違いない…そう思っていたが、夜、寝床に妹はやって来た-。受け流すこともできたはずだったが一度慰めてあげれば落ち着くだろう…。そう考えたのが間違いだった。人並外れた大きなおっぱいと自分に向けられた好きという感情。慰めるだけのはずが自分の中でも膨れ上がっていく興奮を抑えることが出来なくなっていた…。別の日も隙あらば互いに求めあってしまう関係、徐々に激しくなっていく2人。