The couple stands up facing each other( as simple as that). She lifts one leg and places it beside his hips almost embracing him while he enters her. A bit tiresome for her as she stands only on one leg shifting her body weight and keeping on it, which allows fast and short sexual-intercourses. It can be performed in any given unusual sex situations or sex conditions. By holding her leg up he conveys both sex-partners in controlling the pace of thrusting.