Sparkling seduction

A romantic story about two inseparable childhood friends, Lucien and Katherine, who find that the rules of high society in adulthood suddenly seem to prevent them from nurturing the mutual love they both long for, especially when they both yearn to explore it with all their senses. The story is set in London after the Napoleonic Wars.
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Lucien Marvaine thought he wasn't good enough for Katherine. Then fate intervenes and gives him a chance. As the new Earl of Roxbury, he is determined to win Katherine over, but he won't rush it.
Katherine never considered herself a seductress, and it would never have occurred to her to seduce Lucien, because she has known him almost her entire life. Yet she is drawn to him as she waltzes with him at the Kingsboroughs' ball. Was he always so masculine? And did he have dimples? The widowed Kate isn't looking for a husband, but how can she not succumb to Lucien when love is at stake?