Also known as: 背面騎乗位, 背面骑乘位
A Sex position in which the penetrating partner is lying down and the receiving partner is Straddling them while facing away. The penetrating partner can be a man, Futanari, woman with a Strap-On, etc.
If both partners are facing each other, use Cowgirl Position instead. If the penetrating partner is sitting upright, use Reverse Upright Straddle instead.