Three things a man in my position never does:1. Hook up with the intern.2. Touch his friends' daughter.3. Get involved with his ex's family.She's all three. And she's determined to make this summer unforgettable.I tell myself I'm strong enough to keep it professional. That I'm old enough to know better. That if I let her get close, everything—from my friendships to my company—could go up in flames.But the heat between us? It's rising by the hour.This summer, we're going to cross lines... and the only question is which one of us gets burned first.