In this popular series developing a new erogenous zone for women, the Spence's gland, comes Sakura Yuno, a beautiful busty woman with a cheerful and innocent personality, who has become a hot topic for having a voice similar to a certain celebrity! The Spence's gland is the G-spot of the breast! Developed by a specialist in Spence's gland research, she experiences convulsive breast orgasms! Contrary to her interview demeanor, her lewdness is extremely vulgar! A mammary gland development massage sends waves of pleasure from her beautiful large breasts throughout her body, causing her to convulse and scream in ecstasy! Nipple teasing sex leads to a squirting orgasm using only the Spence's gland! A toy massage to finish off the mammary gland development causes her to thrust her hips and lose control of her bladder! Her long-awaited, highly sensitive, erect nipples are kneaded and manipulated, resulting in an intense orgasm that blows her mind!