Exclusive actress Ai Sayama finally appears in this popular series that stimulates a woman's new erogenous zone, the Spence's gland, and makes her cum over and over again! The Spence's gland is like the G-spot of the breast. At first, she didn't trust it at all, but the intense pleasure made her urinate involuntarily! "No, no! Teacher! I'm going to cum again!!!" Even though it was her first time, she orgasms from her breasts many times, and at the end she is in a daze, twitching and convulsing. Please enjoy exclusive actress Ai Sayama's unprecedented climax.