START-128 | Sister and brother take a bath together for the first time in 10 years. A virgin brother who can't control his erection and his sister have sex every day. Hikari Aozora

A collaboration project between SODstar and Pink Family. A college-aged sister secretly likes her younger brother. Hikari makes up her mind and gets in the bath completely naked while her brother is taking a bath. It's the first time they've had a bath together in 10 years. Her brother is surprised, but his penis gradually grows and they cross the line. From then on, the two start to desire each other's bodies, and in the end, they cum inside each other without a condom...