Dangerous to Know (Unbroken Heroes #1)
Dawn Ryder

She's too good to be bad
A bad-boy member of an elite Special Ops team, Mercer has never been assigned an undercover mission he couldn't complete. But when his latest job requires him to gain the trust-and get into the bed-of his newest target, the sexy, fiery colonel's daughter, he has a whole new challenge ahead of him. All evidence points to her being a traitor to the country he's sworn to protect, but the crackling desire between them is too strong a feeling to ignore...
He's too bad to resist
Zoe has always kept her secrets close to the vest. The only woman in a decorated military family, she's been taught that to let someone close is to flirt with disaster. But when the dangerously handsome, alpha-strong Mercer comes blazing into her life full-speed, it's all Zoe can do to resist his wicked seduction. As danger circles closer, Zoe must decide if she can trust him to protect her-but there's no way he could be bad when he makes her feel this good...