Where Dreams Begin — Lisa Kleypas

Zachary Bronson has built an empire of wealth and power--now he needed a wife to help secure his position in society...and warm his bed in private. But not just any woman will do for a man whom all of London knows is not a gentleman. Then he unexpectedly swept Lady Holly Taylor into his arms for an unasked for--but very alluring--kiss, and suddenly he knew he had found a woman whose fierce passions matched his own.

Lady Holly Taylor was beautiful, generous, and, as a widow, destined to spend her life playing by society's rules, even when they went against her bolder instincts. But Zachary's kiss had aroused her, and though the shocking offer he made didn't include marriage, she was compelled to risk everything and follow him to the place where dreams begin.