Bring On The Night by Sara Orwig

Colonel Jonah Whitewolf had always lived life on the edge, whether it was in the Special Forces or working for a security company. Still, nothing could have prepared him for the shock of stumbling upon his ex-wife...and the son he had never known.

With Kate and little Henry sharing his house, Jonah wanted only to spend every day with his son...and every night seducing the woman he'd loved and lost. But with danger haunting his ranch, Jonah hoped that Kate would trust him and understand that this time he wasn't risking his life for his job but for his family.