Your glutes are loaded with muscles that are capable of growing larger. Obviously, if you want those muscles to grow, you need to work them, says Tony Gentilcore, a certified personal trainer and strength and conditioning specialist, and co-founder of Cressey Performance in Hudson, Massachusetts.
To score a bigger booty, he says to start by doing glutes-focused exercises, like the glute bridge and squats, while progressively adding more weight. (Gentilcore says you can do this by holding a barbell or dumbbells on your hips for the glute bridge and by holding a dumbbell in each hand for the squats.)