Nanami Matsumoto, with her 100cm bust and J-cup bust, appears in this popular series that develops a woman's new erogenous zone, the Spence gland! 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 teasing and peeing orgasm, super sensitive titty fuck! Her nipples, which have become even more erogenous zones than the clitoris, are kneaded and tormented until she screams in orgasm! She loses consciousness in agony as she loses her mind in the continuous breast orgasms that break her reason!