Jennifer Lopez may be putting her assets on full display, but one star who's never shy about flaunting her cleavage has been choosing to cover up in dresses with high necklines.

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At the QYC Red Carpet Style party in Beverly Hills Thursday, Kim Kardashian worked a black halter dress with long sleeves and rushed detail along the figure-hugging skirt. She paired the look with black pointed-toe heels, a black clutch, giant gold hoop earrings, a slicked-back bun and a bold red lipstick.

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A few days later at the Elton John AIDS Foundation Academy Awards Viewing Party, the Keeping Up with the Kardashians star, 31, showed off her softer side with low-key makeup and another black ensemble.

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She complemented her sleeveless Alaia dress by wearing her hair in a romantic half-up, half-down style (Jessica Chastain styled her hair in the same 'do Sunday), delicate drop earrings and a stack of silver cuff bracelets by Lorraine Schwartz.

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