Desert Rogues by Susan Mallery

No, not pregnant, thank heavens. Emma would have known that. But married? Well, if the man standing before her--the very love of her college life--was to be believed, she was. And suddenly he was claiming to be a desert prince, too. Sure, they'd had a “pretend” ceremony and honeymoon in the Caribbean. But it was pretend, wasn't it?

Prince Reyhan claimed his father, the king, had decided it was time for him to marry. There was just one little glitch--Reyhan was already married. So, the king ordered Reyhan's wife--Emma--to a two-week trip to paradise before he would grant a royal annulment. But wasn't paradise the perfect place for love?