Wow, never thought this thread would exist so I know I'm a bit late here but good to know I'm not alone...
Whoa..lovely..is there any lady wearing backless dress... love them...
One of my faves of Kirsten Dunst in a backless dress:
My gf's looks really similar to that. Some people automatically associate it with a girl being too thin but I've known my gf long enough to see her at different weights over the years and I can say for sure that, in some cases, it's possible to have a really beautifully-defined spine at any weight. (I actually just noticed tonight that her lower vertebrae bumps show like that even when she's standing up straight.)
Some other faves of Kirsten's from a while back...
And I stumbled onto this one of Hayden Panetierre's...
And there's Sarah Chalke, whose lower spine is almost "too much" but undeniably does it for me...
Anyway, sorry for being so late to the party but just thought I'd post some faves for such a rare topic