H-cup, 101cm busty housewife Riko is overwhelmed by intense sexual desire, constantly drowning in pleasure through masturbation. Her neighbor's son, Yukio, catches sight of her indulging and, overcome with excitement, grabs and gropes her large breasts. Riko offers no resistance, surrendering to the pleasure, moaning instantly as her nipples are teased. Completely liberated by the sensation, she climaxes again when her thick bikini line is licked. Delighted by the cock fulfilling her desires, Riko's voluptuous body convulses violently as she orgasms repeatedly, swallowed whole by waves of ecstasy.