Whatever Mrs. Trump wants, Mrs. Trump gets. When Melania Trump stopped in with her sister at the trendy BCBG Max Azria store on Madison Avenue, she spotted a young employee from the Completely Bare spa upstairs trying on a low-cut black evening dress with an Empire waist. Melania, whose personal tastes tend more toward Dior, was so taken with the dress that she asked a salesperson if she could have the same frock for her sister, but she was told that the spa employee had scored the last size 2. Melania would not be deterred. She approached the shopper, offering to buy her anything in the store if she would give her the dress off her back. According to a source, “The dress was absolutely darling, and the girl looked beautiful in it. She really had to think about it.’’ Ultimately, she caved at the sight of the pleading pregnant woman, and Melania made good on her offer: She paid for everything in the woman’s dressing room. A spokesperson for Melania denied all, saying she “prefers to keep her life quiet.” Next: Ian Schrager Cashing In On Hotel Group