The exclusive actress Karen Yuzuriha appears in the popular series that develops the 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, her H-cup sensitive body trembles with her first breast orgasm! Even though she doubted "Is the Spence mammary gland real?", she has a torrent of orgasms! She squirts so much from the extreme pleasure that she has a convulsive orgasm! When the mammary glands are further stimulated with toys, she's so sensitive that she cums during titty fucking! 3 performances that thoroughly develop her until she faints from breast orgasms!