[F.A] Bitch na Shimai ga Otouto no Niku Dorei ni Ochiru Made 02

A cocky younger brother draws his two sisters into an escalating domination game, testing their ample breasts, rounded hips, and tight rears through repeated anal play, penetration, and simultaneous fisting. Their nervous laughter breaks into flushed screams as a collar, blindfold, and ball gag turn the opening restraint into humiliating experimentation, with one sister begging him to stop even as she eagerly asks for more. A teasing promise involving semen and a lighter pushes the encounter further, but news that a friend is coming over forces the younger brother to stop and prepare for what comes next.