It's a Kardashian style showdown!
Kourtney Kardashian donned a black tuxedo dress that showed off plenty of cleavage at her "Breakfast At Tiffany's"-themed baby shower in Beverly Hills on Wednesday.
The glowing mama-to-be wore the low-cut LBD with comfortable black oxford flats and a mini Chanel handbag.
The "Kourtney & Khloe Take the Hamptons" star took to Instagram to share a sweet snapshot from the lavish soiree, writing, "Baby shower brunch! #breakfastAtTiffanys."
While Kourt had plenty of designer duds to choose from for her special day, she reached for a dress right from her younger sister Kim Kardashian's closet.
Mrs. Kanye West first wore the fancy frock to the E! Upfronts in New York City back in April 2013. Kim stepped up the sexiness by adding black pointed-toe pumps and a sleek 'do.
We think these famous siblings both look beautiful in the basic black dress, but we prefer Kourtney's funky footwear. Who do you think wore it better? Cast your vote above!