Dear CC: This guy in my office just asked me out. I see sex on the horizon. Am I headed for trouble?
Gosh, no-and why not juggle flaming swords at the same time? What, are you insane? Listen, even if the hottie with the soul patch in accounting curls your toes next Saturday night, he probably isn't going to be Mr. Forever (he's got a soul patch, remember). And you're not going to want to sit across from him at the next quarterly update knowing he knows that you like it with batteries included.
CC's rule of thumb: Once you've seen each other's ecstasy face, your days of effective PowerPoint together are through.