White Sandro A line dress with flowy skirt and low v

Purchased dress for my engagement photos and Bachelorette party! The flow of this dress is a photographers dream, she almost didn't let me change into my second outfit. Dress is a white low V cut a line dress with a v cut back. It squeezes the upper body but flows off the lower body perfectly. Bottom hits about mid thigh. I'm a C cup and could not wear a bra with it so C cup chest or smaller!