I ordered a size 4, as I'm a 34D with a small waist. This dress fit perfectly! It fell above my knees and my chest fit comfortably in the cups. Even though I was dancing a lot at prom, I didn't have to pull it up every five seconds. Literally the most perfect dress if you're a girly-girl and want something hot & fun. Note: it's not as hot pink as it is in the picture, it's more magenta-y.