Missionary position

The missionary position is a common human sex position also used by certain other species including bonobos and armadillos. In his seminal study Sexual Behavior in the Human Female (1953), researcher Alfred Kinsey stated that 91 percent of married women surveyed reported using this position most often, whereas nine percent reported using it exclusively. The position essentially involves the partners lying face to face, with the receptive partner underneath with their legs spread apart.