Ralph Lauren threw a big to-do celebrating his Paris store opening last night. Guests included Karl Lagerfeld, Sonia Rykiel, Du Juan, Abbey Lee Kershaw . . . and batwoman! Or by day, known as Vogue Paris Editor Carine Roitfeld. You know me — I love a dramatic getup, especially one involving a cape — and if anyone can smoke it, Carine can. Her smoldering face heightens the hilarity. You with me?