Soft and soothing busty beauty Nao Mizushiro enters the Spence Breast Development Clinic, where a rotating brush vigorously stimulates the so-called G-spot of her breasts until she repeatedly climaxes and loses bladder control. An expert gives her a first breast orgasm, followed by nipple-teasing sex, toy play that makes her leak urine and Spence titjobs. Watching her cum again and again through her breasts makes this session irresistible.