Lucas Thatcher has always been my enemy.It's been a decade since I've seen him, but our years on opposite coasts were less of a lasting peace and more of a temporary cease-fire. Now that we're both back in our small town, I know Lucas expects the same old war, but I've changed since high school-and from the looks of it, so has he.The arrogant boy who was my teenage rival is now a chiseled doctor armed with intimidating good looks. He is Lucas Thatcher 2.0, the new and improved version I'll be competing with in the workplace instead of the schoolyard.I'm not worried; I'm a doctor now too, board-certified and sexy in a white coat. It almost feels like winning will be too easy-until Lucas unveils a tactic neither of us has ever used before: sexual warfare.The day he pushes me up against the wall and presses his lips to mine, I can't help but wonder if he's filling me with passion or poison. Every fleeting touch is perfect torture. With every stolen kiss, my walls crumble a little more. After all this time, Lucas knows exactly how to strip me of my defenses, but I'm in no hurry to surrender.Knowing thy enemy has never felt so good.