Jennifer Lopez is a pro at rocking figure-flattering silhouettes that are slimming, sexy and work for her curvy figure. The trick is to find designs that instantly cause a slimming effect, also known as "optical illusion" dresses. They enhance our curves while making us look like we have been spending time shedding 10 extra pounds at the gym. Don't worry–no one has to know it's all about the dress! We have ten looks that will give you the perfect hourglass shape without even trying. These are miracle workers!
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Strapless color-block dress

Summer nights are bound to get even steamier with this sexy white and black dress! The contrast design gives the illusion of an hourglass figure and creates the look of a slimmer waist. Bebe.com, $99
Kaleidoscope print bodycon dress

Summer looks are all about bohemian kaleidoscope prints. I love that this black dress focuses the design along the sides, which creates an even more slimming effect. Forever21, $32.90
High neck lace applique pencil dress

This bright coral dress embodies summer! The white lace strategically placed around the waist and chest instantly takes pounds off of your mid-section. This is a winner! Asos, $118
Maxi dress with festival embroidery and cut out back

The beautiful embroidered design down the center and cut out detail creates a slimming silhouette. Get ready for the compliments to come pouring in. Asos, $154
Gallery crawl the way dress in cobalt

The contrasting border along this blue printed dress shaves off ten pounds from your look instantly! It's also a looser fit, which is perfect for those super warm summer days. ModCloth, $49
Poplin shift dress

The lovely floral print running along the side of the dress is modern and slimming. This is a nice remix to that little black dress and you really can't beat the price. Old Navy, $27
Spliced bodycon color block dress

This sexy number is definitely reserved for a hot date night! The color blocking design starts from the shoulders and drops all the way to the bottom of the dress. You will feel taller and skinnier instantly! Rose Gal, $17.31
Beige and black bodycon lace dress

If you want to trim your waistline and look sexy while doing it, this is the dress for you. The lace is stunning! Lulus, $54
Strapless colorblock maxi dress

Maxi dresses are a summer go-to, but they don't have to weight you down. This dress features panels that run diagonally, which lengthens and slims effortlessly. Forever 21, $24.90
Floral sheath dress

For a sweet and sexy look, go for a sheath dress like this one. The black design around the mid-section and belt helps shave extra pounds while also emphasizing your curves. NY & Company, $69.95