This is from
The Art of Being Clark by Missy Gallant
http://www.lcfanfic.com/stories/2001/artofbe.txt

I was interested, but had to cheat to find this one too! I had to do some creative searching to find it.

How about this opening line:

When the elevator doors slid open with a mechanical grind
and a retractive jerk, Lois took an almost imperceptible
step to the right, moving just enough to dislodge Dan
Scardino's arm from its comfortable perch across her
shoulders. The offending limb fell heavily, and he gave her
a sideways glance. She stared straight ahead, lips pursed,
pointedly ignoring the stare he'd fixed on her cheekbone.

His gaze failing to receive the desired reaction, Dan, a
danger-lover by nature, gave voice to his suspicions.
"Lois, if I didn't know better, I'd think you were trying
to hide something."

"Dan, we've been over this," she interrupted over her
shoulder as she exited the elevator. "I'm not hiding
anything. It's nobody's business what I do outside of the
office."