This position absolutely takes you to the edge of ecstasy.
He sits back on the couch (or a comfy chair). She straddles his laps with her legs splayed apart and her knees bent up against his chest. She then slowly leans back so she’s almost upside down with her arms stretched behind her (all the way to the floor) to support her weight and maintain her balance. She thrusts back and forth against him, while opening and closing her legs.