The younger sister takes the initiative and leads them from above! The masochistic older brothers' dicks are throbbing every day as Minori-chan plays devilish roles! The older brother, who is a siscon, can't help but masturbate when his younger sister seduces him by showing him a glimpse of her beautiful shaved pussy. Minori-chan has a hold of his weakness, and her erotic provocations escalate until they finally have sex...