God knows how girls bigger sized are often told to skip the cute and go for the “slimming” styles. I know if you’re not a size O, you tend to make more fashion faux pas than the average person. Seriously though, if you’re fat, no amount of black is going to be slimming in any way. Might as well walk around in a bright bright pink!!!
I like these, and you might too…

Harlequin Mod Shift Dress
Source: http://www.etsy.com/view_listing.php?listing_id=18267321
60s mod inspired shift dress with decorative buttons and back zipper. Match it with your go-go boots and hit the town.
Sizes XS-2XL are available and are handmade to order, so please allow up to 1-2 weeks until shipping.

HOT CROSSES Slip Dress- Vintage reconstructed XL 14 - 16 plus size
Source: http://www.etsy.com/view_listing.php?listing_id=29526515
Hot Crosses – Vintage reconstructed Slip Dress
Extra Large 14 – 16
(40 bust)
Whether you call yourself EGL, Lolita, or loligoth, this OOAK, reconstructed slip dress would look great on you!

MISS ALPHABET hot pink_black polka dot drop waist skirt 2X
Source: http://www.etsy.com/view_listing.php?listing_id=14191596
Here’s a dress that’s simple, yet makes a statement! It’s a strapless tube dress with a double ruffle skirt, made of hot pink cotton fabric with black polka dots. Wide black lace runs up the front, as well as three black heart buttons! Zips in back, boned in front and back.
Bust 40″, waist 38″, hips 42″, length (neckline to hem) 30″.