衝動 [Shoudou]

國江の姉目当てで、國江と強引に友達づきあいを始めた小鹿。二人は馬が合い、時間を共有する事が増えてゆく。放課後の教室で、小鹿のジャージでオナニーをしている國江の姿を、偶然にも目撃してしまった小鹿は…！？

In order to approach a girl who works in entertainment industry, Oga end up forcing friendship with Kunie, her younger brother. While going out for fun, they will discover an extreme attraction between each other. Oga finds Kunie masturbating and that leaves him disturbed... But, at the same time, he can't help feeling dragged into the moment. This way, Oga end up putting his member, which was already hard, into Kunie's mouth...