Sit down as close as you can to the wall. Lie down on your back, place your feet on the wall with your knees bent, and scoot your butt against the wall.
Extend your feet straight up, resting your heels on the wall.
Bend your right knee and rest your ankle just below your left knee.
Slowly slide your left foot down the wall; it's OK that your hips come off the floor.
Stay here for a minute or so, lowering your left foot even further as your hips begin to open.