Mistress To The Tycoon (Harlequin Presents Extra (Unnumbered))

Never mix business with pleasure. That is Cooper Vance's unbreakable rule--and he is living proof that it works! He's successful, sexy, totally single--and that's the way he likes it. Until he walks into an art gallery that he's determined to buy and sees a woman who takes his breath away.... Can this big-shot tycoon break all his own rules so he can broker a deal and make Ariel his mistress?