Flattering 1x vintage inspired slip dress

Vintage inspired slip dress 1x. I've had it quite a long time and cared for it gently although I don't think it's quite old enough to be considered vintage, it is vintage style. and I believe it's also shapewear but I've worn it as a dress. this one is one of my favorite pieces so flattering, but it fit me and looked much better when I had curves for reference I wore this best when I was a size 10, 40C. in this video I am a size 4 and 34B/c (I don't fill out the cups so parting with it :( lightly padded bra with adjustable straps the color is a Dusty mauve the lighting in here doesn't do it any justice.