Carmen looked super sexy in the backless Oday Shakar dress at the Nyx Cosmetics Decade +1 Anniversary Event in Hollywood, pairing it with Yves Saint Laurent ankle strap heels.

Audrina wore the same dress in late 2009, pairing it with super sexy Lanvin thigh-high boots.

Carmen looked startlingly sophisticated in the shimmery gem, scoring high marks with us!

A dress this gorgeous, is better paired with sexy heels, not thigh-high boots, therefore Audrina scored lower points than Carmen.