Have you heard of the Spence glands? The Spence glands are like the G-spot of the breasts. This work is likely the first to focus on stimulating the Spence glands. Haruna Natsuki, who has appeared in numerous AVs, exclaims, 'This feeling... it's my first time! It was like a lightning bolt.' She even experienced intense urination due to the overwhelming pleasure. A recorded video of Haruna Natsuki developed by a Spence gland specialist! It's rare and guaranteed to be incredibly arousing!
