Well, I knew the author as soon as I read the clue... but I didn't think I could come up with another funny quote, so I didn't say anything. Since no one else has jumped in, though... this is Lucky Lunkhead by Missy Gallant.

Bonus quote from that story, just because I like it:

Quote
"I'm fine, Lois. Calm down," he said, turning around to look up at her.

"I... I... hit you with a Kerth! Not my good one; there was really no competition that year, but Clark, I saw it happen. The statue shattered, and you fell."
Oh... you wanted a quote from a different story? Lemme see what I can do...

Okay, try this:

Quote
“He’ll never get a girlfriend now!”

Clark stared at his reflection in the mirror and didn’t respond.

“That’s why he’s cutting his hair to begin with,” Jonathan said in a stage whisper.

“He has a girlfriend?” Martha looked unflatteringly stunned.

“No, Mom.”

“No, Martha. He overheard a certain domineering, uncompromising, pigheaded, brilliant woman saying his haircut was ridiculous.”

“What? I never said such a thing!”

Both Clark and Jonathan looked at Martha steadily. She blushed. “Oh, that was Lois. Right.”
PJ

"You told me you weren't like other men," she said, shaking her head at him when the storm of laughter had passed.
He grinned at her - a goofy, Clark Kent kind of a grin. "I have a gift for understatement."
"You can say that again," she told him.
"I have a...."
"Oh, shut up."

--Stardust, Caroline K