How do you get ...???

okay how do you get bigger hips because all the women in my family have wide hips but im the only one without hips my mom and aunts say "wear your pants / capris abp\ove or at your belly button for like 2 -3 years and eventually you will get wider and bigger hips " is that true or what home things could i get i weight 128 pounds have big shoulders and a bigger upper body so i just really need hips because everyone says that but wtf !!!!!