H-cup beauty Hayami Yosako was brought to the studio without being told anything! This time, a celebrity friend prepared a project called "Instant Insertion"! The plan is to send a well-endowed male actor to Yosako, who has no idea about the filming content, and keep penetrating her until she goes crazy with orgasm. Despite the initial shock on Yosako's face, she eventually succumbs to the pleasure of the giant penis sex, writhes in ecstasy, shakes her huge breasts, and reaches orgasm.
