A sister who uses her brother's dick to relieve stress and sweat. The sister is a sports club girl with an abundance of stamina and insatiable sex drive, plus she has a well-toned body as a bonus. She straddles her brother for facial riding, enjoying the taste and smell in a perverted way. She performs deep throating on her own or asks her brother to make her drool-covered through irrumatio. Their sexual desires are endless, culminating in intense breeding sex while choking each other. This is the story of a twisted S-type sister and an M-type brother.
