Books like Savage deception by Lynette Vinet

A handsome, mysterious overseer on her fiancé’s plantation catches Diana’s eye—but little does she know he’s hiding a secret that could ruin her forever. Diana Montaigne is promised to the master of Briarhaven, but the moment she sets eyes on the plantation’s overseer, Tanner, the highborn beauty is set aflame with uncontrollable desire. His muscled arms make her long to be held; his lips make her hungry for his kiss. But then she discovers that he’s her fiancé’s unacknowledged half-brother. Ashamed, she despises him for making her disloyal to the man she plans to marry. When the half-breed Tanner caresses Diana in a moon-dappled grove, his joy knows no bounds. Here’s a woman who doesn’t care about his ignoble birth, who will respond to his demanding kisses. But when Diana suddenly shuns him and marries his brother, Tanner is consumed with rage. Storming off the plantation, he vows to return to conquer the two-timing vixen.

First publish date: 1989