A popular series featuring Satsuki Mei, who has sensitive and soft breasts, has introduced a new erogenous zone for women: the Spence Mammary Gland! The Spence Mammary Gland is the G-spot of the breasts! Developed by a specialist in Spence Mammary Gland research, it leads to intense chest orgasms repeatedly! At first, it may feel ticklish, but gradually, the reactions become good and quivering! Being touched on the mammary glands leads to intense chest orgasms, and in the midst of thorough teasing of the nipples, there's creampie sex! With toy torment, there's major incontinence! With the lifting of the ban on nipple play, intense piston sex leads to a powerful Spence climax and ascension!