Long sit rotation (Piriformis/gluteals stretch, cross body, with trunk twist, sitting; 01)

Sit on the floor and raise your right leg and cross it over the left leg so your right foot is placed just outside of your left knee.
Straighten your left arm and place your elbow on the right side of your knee.
For stability use your right hand, which is still behind you.
Hold the stretch for the required duration with controlled breathing.
Return to the starting position and repeat for the other side.