The T Stance exercise works your butt and legs.
Now we're ready for the T stance. Take your right hand and put it against the wall or some form of support. Extend your left arm out to the side. Now you're going to bend your right knee, hinge at your hips, sink into the left leg with your knee going out over the top of the left foot. Dig your heel in. Finish all of your repetitions on your left leg and then you'll switch to your right.