Hibiki Otsuki, the legendary busty beauty, finally appears in the popular series that develops a woman's new erogenous zone, the Spence gland! The Spence gland is the G-spot of the breast! Developed by a specialist in Spence gland research, it brings astonishing breast orgasms! Experience a mammary gland development massage and scream as you squirt and convulse in ecstasy! Nipple teasing Spence sex makes her body tremble and squirt! When the mammary gland is stimulated with a toy, she collapses and urinates in large quantities! After teasing her nipples, she is kneaded in intense piston-like creampie sex and reaches an orgasm so intense that she loses consciousness! Even a legend can feel the potential of the Spence gland, which can still be erotic, with this powerful Spence orgasm!