彼女なし…モテないボクの日課はオナニー。それも性欲だけは旺盛なのでほぼ毎日シコシコ。そんなボクの姿を義姉はこっそり監視していた！そしてある日ボクに「オナニーばかりしていたらバカになるよ！」と説教。さらに「私とエッチしよう」とオナニー中毒のボクに解決策を提案。えっ！本当にいいの？戸惑うボクのチ○ポをフェラ！そして義姉のリードでどんどん発展していくセックス！憧れのパイズリも中出しも全部できちゃった！もう自分でシコシコしなくていいんだ！最高過ぎる！いつでもエッチできる対象が家族なので、ボクはもうオナニーは卒業します！
I'm single… I'm not popular with women, so my daily routine is masturbation. And since my sex drive is strong, I jerk off almost every day. My sister-in-law secretly kept an eye on me! Then one day she lectured me, saying, "You'll become stupid if you keep masturbating all the time!" And then she suggested a solution to my masturbation addiction: "Let's have sex." What?! Are you sure? She gave me a blowjob while I was still confused! And then, with my sister-in-law leading the way, our sex progressed rapidly! I got to do everything I'd always wanted: a titjob and a cumshot inside her! I don't have to jerk off anymore! This is amazing! Since my family is my only option for sex, I'm graduating from masturbation!

– JavGG.net