In this popular series that explores a woman's new erogenous zone, the Spence gland, Saeko Hiiragi, a fair-skinned, slender girl with big breasts, appears! The Spence gland is the G-spot of the breast! Developed by a specialist in Spence gland research, it will make you dribble love juices and make you cum for the first time! Spence caressing sex, Spence teasing and peeing orgasm, and super sensitive titjob! The stimulation of the mammary gland resonates all the way to her pussy, making her slender body arch back and cum in spasms! She screams and urinates as she experiences an unknown breast orgasm!