This stretch is a modified yoga pose that stretches both glutes simultaneously. Tight glute muscles can lead to lower back pain, so it is important to stretch them.
Start by sitting on the floor on a yoga mat.
Cross your right leg in front of you so that your knee is centered to the middle of your body. Then cross your left leg, stacking your left knee over your right knee. You may feel a stretch in your glutes here. For a deeper stretch, gently lean your trunk forward. Hold for 30-60 seconds.