Bridesmaids Dress Saga

So one of my dearest friends from college is getting married in June and I have been selected for the honor of serving as a bridesmaid for the ceremony. This marks my first wedding party experience, and it is very exciting. Even more exciting is that the bridesmaids dress is from J.Crew Wedding:

Very nice. Since it is a June wedding, our shade of green is slightly brighter. However, the person in charge of sizing at J.Crew wedding should probably reconsider their career choice. After measuring myself (which could have been part of the problem) and looking at the sizing chart I saw that I was exactly a size 4. When I talked to the woman on the phone, she said otherwise. Because the dress runs small she suggested that I get a 6 and that it would fit perfectly. It was falling off. So, I returned it to the J.Crew store and ordered a 4.
Since UPS had been so speedy the first time (taking exactly four days, including a Saturday and Sunday) with delivering my package, I was antsy about the new dresses arrival and after six days had gone by I decided to check out my tracking number. Amazingly, according to UPS my package had been delivered two days earlier, only no one (UPS or my leasing office) had thought it necessary to tell me that the dress was waiting for me to pick it up at the leasing office.
Nevertheless, I was excited to get the smaller dress. Once I put it on, however, my tune changed:


Not too bad, but for a strapless dress, it is simply too loose. These pictures were taken after basically stuffing my upper area as much as possible. I have decided that J.Crew makes dresses for very oddly shaped people.
In the end, I kept the 4 and ordered the 2. I will send back whichever one fits worse.