In this popular series that explores a woman's new erogenous zone, the Spence's gland, Kaho Tamaki, a mother of three who grew up in Okinawa, appears! The Spence's gland is the G-spot of the breast! Developed by a specialist in Spence's gland research, she experiences the unknown breast orgasm for the first time! The sensitivity of her soft, supple breasts that have nurtured babies increases rapidly! She squirts and has multiple breast orgasms! Nipple teasing leads to creampie! Mammary gland toy play leads to crab-legged incontinence! Nipple teasing sex leads to screaming orgasm!