[Furube] Ryouude ga Tsukaenaku Nattara Otouto ga Choushi ni Noridashita! part 5

A nervous younger brother uses a phone to coax his embarrassed, full-figured sister into a provocative recording, pressing her to show pleasure as her flush deepens. Her broad thighs, heavy breasts, and breathless reactions dominate the physical fantasy, while his nervousness gives way to masturbation and a colder plan centered on training her until she obeys. Their sibling banter carries an intimate charge, balancing crude curiosity against the risk of exposure and a possessive contest for control.