A Kiss of Silk — Barbara McCorquodale

From the beginning, it had been strictly a business understanding. Varia was given a huge sum of money and a magnificent wardrobe to wear in France as "fiancee" of Sir Edward's spoiled son Ian. For Ian the scheme was barely tolerable for it meant leaving his stunning girlfriend Lareen behind. To Varia it was an exciting adventure, although she must wear the ring of a man she would never marry. But Varia hadn't counted on Pierre, the handsome Frenchman who swept her off her feet with words of love--or On Ian's surprising reaction when he discovered her secret rendezvous...