If i were you, i would look in shoppingkool.com . I was just in one this morning, and they have so many dresses for so many shapes and sizes. They have a big dress section, and as a very petite person, i found many. Take a look :)
ATTENTION' THIS IS FOR A DANCE WITH A DJ AND LIGHTS AND STUFF right now , a tight skirt pulled up below your breasts with a plain t-shirt and some falts i don't recommend too much jewelry as you look...