An older brother in the next room watches an adult video with sound on, causing his sister's arousal

A sultry Japanese teen stumbles upon her stepbrother watching an AV, unbothered by her presence. Ignoring her, he reaches for his throbbing desire. The girl, drawn to his arousal, seduces him. Their passionate encounter unfolds in various positions, culminating in a satisfying creampie, proving the AV\'s stimulating effects.