Sister and brother's lewd gaze at naked women - Akane Risaki GG-033

Recently, Mitsuo has gradually realized that his older sister, Akane, is a girl. Before, they would playfully fight, and she would obediently run errands for him, but as she's grown older, he's gradually distanced himself from her. Unexpectedly, his sister even took off her clothes in front of him without any suspicion, sleeping with her legs spread wide while still wearing her underwear…