Kim and Kourtney Kardashian's Versace Gowns Work Together Like Pieces of a Sexy Puzzle

Kim Kardashian has shown off her fair share of plunging necklines and formfitting dresses, but I've never seen one quite like her amfAR gala gown. Kim attended the NYC event with Kourtney Kardashian on Feb. 6, and the two stole all the attention on the red carpet. The sisters chose complementing black Versace dresses for the occasion, which flaunted their famous curves and assets.

In addition to her statement neckline, Kim's formfitting dress featured a thigh-high slit on the side. She paired the outfit with clear heels, a style she reaches for often. Kourtney, on the other hand, opted for a dress with thick straps and a scooped neckline, plus its own sultry slit. She finished off her look with what appear to be pointed velvet heels. See Kim and Kourtney's looks from all angles ahead — they'll go down as a couple of their sexiest yet.