These are my top 4 mobility movements to loosen up my hips. I use this series after I workout almost 3 times a week to keep things bendy.
Keep an up right torso and drive weight into the front foot while the back leg stays long. A stretch should be felt in the back leg quad as well as the front leg inner groin.
Start in the high lizard position. Twist body towards front leg and grab opposite leg foot. Stretch will be felt in the front leg groin and back leg quad
Set up with a tall torso with legs bent at the knee behind. Slowly overtime lean back so body drops either between the feet or on top of the feet. Stretch will be felt throughout the quad as well as the lower back which will now be in a overextended position.
Start on all fours hands and knees. Reach leg behind out to a full stretched out position and then bring the leg up, under and across the body so the stomach is resting on the foot. Stretch will be felt in the under legs outside hip.
Check out the link for a full video of me getting all sorts of Stretchy!