White House, black market size medium dress worn once

I purchased this WHBM dress roughly a year ago to wear to an evening event and only were the one time for a few hours. It is very forgiving and comfortable. I just have gained some weight in my midsection and this dress is not flattering to someone like myself that has weight distributed in the midsection, I am too self conscious. No damage. It’s more of a deep pink and black with metallic.