How to build a better butt! First things first, forget about all those 30 day squat challenges. In fact, forget any of your arbitrary length goals you set for yourself. My transformation above took 4 years. Outside of surgery and PEDS, there's no way to cheat muscle growth. And muscle growth is exactly what you need to have a toned bubble butt. Click through to see some of my favorite exercises and diet methods to increase the size and strength of your glutes!