Ragazza Fashion makes custom size dresses according to your bust, waist, and belly button to floor measurements. If you need a size bigger than a 13, please select the "Size Bigger than 13 (+$200.00)" size option. 
For an additional $150, you can order a matching mini skirt, which gives you a gorgeous second look for your party.
Since this is a two-piece dress, the skirt and the bodice are both removable.