I was a bit nervous for this romper because i got it in an extra small. i normally wear extra smalls and smalls, but since it kind of has a lace finish, i wasn’t sure if it would run small and be too tight. but once i got it on and over my butt (lol) it was a perfect fit. very sexy and does have a deep v cut. if you want a tighter fit, size down, but getting your regular size should be okay as well since you can tighten it around the waist with the strings.