Squat leg lift medial delt
This exercise works buttocks and shoulders at the same time!
Stand straight with knees shoulder width apart and squat with elbows bent out in front of you. Come up and lift leg to the side and pulse for 3 counts. As you are lifting your legs, your arms should be out to your side at shoulder with elbows still bent. Go back into a squat, dropping elbows. Repeat for 10 sets then switch sides.