An ultimate waist-using god-butt wife who must be erected! A flexibility and smoothness of the waist trained by dance that makes you cum continuously by yourself with a grinding waist undulation riding position fuck!! Vulgar and obscene, conceiving a child other than her husband, quick quick quick in the afternoon! Dancing dancing dancing riding position wife. If you open the window, it's the Kanda River, in a four and a half tatami room of a dilapidated apartment, the wife knows pleasure, knows love. (Filmed: Kanda River Blues)