Getting the perfect butt isn’t about just doing squats. To get that full roundness you’re looking for, you have to take into consideration the three different muscles that make up your butt. This diagram describes how each muscle works and what exercise to do to activate them. My suggestion is to take the basic idea, and make your workout plan incorporate different types of the same exercise for each category so you can experience full benefits of your workout. For example, to activate your gluteus minimus, the diagram recommends squats. You can include sumo squats, wide stance squats, narrow stance squats, split squats, etc. To get the gluteus medius going, you can add jump squats, jumping split squats (or Russian hops), box jumps, or jumping rope. Different ideas for lunges include reverse lunges, curtsy lunges, and lunge hops. Check out different glutes and hamstring workouts here to get more ideas!