Yumi visits a massage clinic for chronic shoulder stiffness and reunites with Tetsuya, her adult son’s former classmate. Pleased with his massage and still treating him like a kid, she jokingly asks him to loosen up her breasts too. Aroused by her voluptuous body, Tetsuya loses restraint and relentlessly works her nipples until she cums again and again. Unable to forget the unexpected full-body orgasms, Yumi returns and specifically requests him once more.