The beautiful and slender Yuki Takeuchi appears in this popular series that develops the Spence's gland! The Spence's gland is the G-spot of the breast! Developed by a specialist in Spence's gland research, it will give you a deep breast orgasm that will blow your mind! She will arch her back and scream as the mammary gland development massage is performed, and her nipples will be teased and she will squirt during Spence sex! She will tremble and convulse with the pleasure of the mammary gland as she is stimulated with toys, and will even urinate! She will also feel pleasure from breast rubbing...