T28-588-Uncensored-Leaked — On days when our parents were away, my sister and I had sex all day long until I ran out of sperm. - Chiharu Sakurai

While Mom and Dad are away on a local community association hot spring trip, Chiharu, the assertive younger sister, plays naughty tricks on her beloved older brother. In his room, the kitchen, the entrance hall, the bedroom, the bathroom—she has sex with him non-stop all day long, letting him cum over and over again! "Big brother, you're amazing! You've produced so much white stuff! But you can still do more, right?!"