In this popular series that develops a woman's new erogenous zone, the Spence gland, sensitive busty G-cup Natsuki Marron appears! The Spence gland is the G-spot of the breast! Developed by a specialist in Spence gland research, she has her first breast orgasm as her love juices flow freely! Spence caressing sex, Spence stimulation that makes her squirt, and a titty fuck that makes her faint! Relentless stimulation of the mammary gland makes her shaved body writhe and reach continuous orgasms! Her nipples are kneaded and twisted, and she goes crazy, and even after she faints, she ascends to heaven with continuous creampies!