In this popular series that explores a woman's new erogenous zone, the Spence's gland, slender, sensitive, beautiful breasts, Mao Hamasaki appears! The Spence's gland is the G-spot of the breast! Developed by a specialist in Spence's gland research, she repeatedly experiences intense breast orgasms that she had never suspected! Her breasts are teased, causing her to squirt, and her nipples are teased while she is fucked raw! She is made to urinate with a toy, and her breasts orgasm with a super sensitive titjob! Finally, her nipples are stimulated, causing her to bounce her hips and squirt in a series of orgasms, screaming as she ascends to heaven!