The popular series develops a woman's new erogenous zone, the Spence's gland, and the bewitching busty beauty, Sumire Kurokawa, appears! The Spence's gland is the G-spot of the breast! Developed by a specialist in Spence's gland research, it brings astonishing breast orgasms! A breast gland development massage awakens her naturally sensitive breasts, leading to a convulsive, screaming orgasm! Nipples are withheld from intense piston sex, leading to a crazy orgasm with a squirting orgasm that leaves her with no time to spare! Toys are used to further stimulate the Spence's gland! Massive incontinence! After a day of teasing, the hard nipples are kneaded and tormented, leading to an orgasm so intense that she loses consciousness!