MIAE-073 — New Erogenous Zone: Massage To Develop The Female Buttocks Pilmu Muscles, Nao Wakana

A new erogenous zone, the "Pilum muscle," has been discovered in women's buttocks! [What is the Pilum muscle? ... A muscle that is intimately connected to the nerves in the deepest part of the buttocks. With special stimulation, it becomes the most erogenous zone of a woman's body, surpassing the nipples and clitoris.] Nao Wakana, who has a superb body, attempts to develop the Pilum muscle for the first time in AV history. Although she is skeptical at first, gradually a stain appears in her crotch as she receives a special massage from an expert! When the pleasure exceeds her limit, she convulses violently, pees herself in a climax, and cums over and over again with Pilum sex! The mysteries of a woman's buttocks are revealed for the first time!