Double Standards by Judith McNaught
Nick Sinclair, the ruggedly handsome president of Global Industries, handles his business the way he handles his women: with charm, daring, and complete self-control. When he hires Lauren Danner, he assumes the whip-smart beauty will be another easy conquest but much to his surprise, her wit and rare spirit dazzles him and he slowly finds himself falling in love.
Yet he has no idea that Lauren is living a lie, one that is becoming more dangerous with every passing moment. Trapped in a web of deceit, she fights her growing love for Nick and the promise of life with the most compelling man she has ever met.