The Undercover Billionaire by Jackie Ashenden

The Tate Brothers were raised to protect what is theirs…

Navy SEAL Wolf Tate is on a mission of vengeance. He’s willing to do whatever it takes to infiltrate the lair of his arms-dealing enemy—and rescue the mother he never knew. To do this, he’ll need more than his father’s fortunes or his brothers-in-arms. He must find a way to kidnap his enemy’s daughter for leverage. There’s just one problem: She is also one of Wolf’s closest friends—and the only woman he’s ever loved…
For years, Olivia de Santis has been waiting for Wolf to take her in his arms and make her dreams come true. But she never imagined that he’d sneak into her bedroom one night…and take her as his hostage. Olivia knows she should resist him—and stay loyal to her own family. But how can she deny the burning justice of Wolf’s mission, and the blazing desire in his eyes— even if giving into the heat of the moment can put her in grave danger?