The man lies on his back. The woman squarely squats on his face.
Origin of the name
Iwashimizu is spring water welling up between rocks — in classical poetry, a standing image of purity and of a source that never runs dry. Seated above his face, what flows from her is likened to that mountain spring. Giving the most explicit of acts the cleanest name nature has to offer is very much the shijūhatte way: the art of saying it beautifully sideways.
Tips
She sets the pace here. The key is not to settle her full weight down — take it on your knees and hands and stay hovering, shifting slightly forward or back so his nose and mouth stay clear. He can't easily speak, so agree on a signal beforehand: two taps on her thigh means come up. With her controlling both height and angle, she can steer toward exactly what feels good.
Difficulty:
