A: I made my butt bigger through heavy exercise squats, lunges, deadlifts, cable kickbacks. etc. Try www.getyourbuttinshape.com for exercises and other advices for butt shape up.
A: Try working out at the gym. Using weights gives your glutes a reason to grow. Do squats, deadlifts, walking lunges etc. basic exercises. For more try searching the internet or Getyourbuttinshape.com link