How do get wider hips and a bigger booty?

To get a big butt a lot of starch based foods such as bread, especially cornbread, will help.

For building up the rear end do squats and lunges. By exercising, working out and going to the gym but also eat mad ice cream. I means MAD ice cream. then hit it up wit some o dat salad. mad salad-...

just eat more

You can try exercises like side leg raises with ankle weight or fixing your hormonal balances and chemical balances.