His Innocent Temptress. Kasey Michaels

Eldest son Alex lived by the rules of his legendary family's proud heritage and would never disgrace the revered Coleman name by seducing an innocent like Hannah Clark. Yet when the spirited beauty turned the tables, the infamous horse breeder found her impossible to resist. Honor demanded he make Hannah his bride. But Alex's destiny had already been carved in a land far beyond the Lone Star State. And his heart now faced the ultimate decision – the choice between love and duty.