Khai thác tinh trùng với một ống hút uống tinh. một cách khác nhau của âm thanh niệu đạo. Xem chính.

Instead of the usual sounding rods, this time the mistress uses a drinking straw made of glass to stretch the urethra. The difference to the normal rods comes into play especially during orgasm, because the sperm can flow out unhindered and it does not come to a backwater or a blockage. In addition, the transparent glass allows an unobstructed view into the spread urethra, which the mistress finds very horny.