[Hito no Fundoshi (Yukiyoshi Mamizu)] Kaki Hoshuu 3 [Colorized]

A tanned tomboy schoolgirl is trapped in a filthy arrangement with the elderly teacher who holds blackmail over her, dragged from a hotel rendezvous to her own bedroom while her mother is due home any minute. Though she curses him and swears her heart belongs to a boy named Seichi, her toned body arches and trembles under his wrinkled, sweating hands, an ahegao overtaking her flushed face as rough fingering gives way to raw, relentless sex. The finale is as cruel as the setup—she begs him to pull out because she has no birth control, and he simply finishes deep inside her instead.