The competition is fierce when Blair and Chuck engage in a bidding war at a Sotheby's auction. Later on, things lighten up when Bin a Diane von Furstenberg top (
shop the style), a Vince skirt (
shop the style) and Valentino bag (
shop the style)meets Serena, in a Matthew Williamson dress (
shop the style) and Treesje bag (
shop the style) for a catch-up session.
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More! Best TV Show Weddings on EW.com