On the day their parents were away, he and his sister had sex all day, draining her of her stamina. (Nagase Yui, T-28585)

After her parents left, Inaba Ryuka was left alone with her brother. Her heart raced, and she began to crave her brother, watching them repeatedly engage in incestuous acts! With an innocent smile, she writhed her amazing body, allowing her brother's penis to penetrate her until he ejaculated inside her!