Counterfeit Lady by Jude Deveraux

Kidnapped by mistake, French beauty Nicole Courtalain is swept across turbulent seas to Virginia, where Clayton Armstrong awaits his English lady. When Clayton showers his treasured bride with ardent kisses, the woman in his arms is not who he thinks she is. Instead, he is holding Nicole, who is struggling with herself to tell this handsome stranger the truth -- because his caress feels so right.