I think it's perfect as is, but the additional mention of the "disguise" works well, too. I don't think you need to jump through hoops to keep Lyn's identity a secret from the reader -- I think most people, like myself, started to suspect partway through the story, and that's fine! It only makes it sweeter to read and to picture.
And I personally love the idea that Clark doesn't realize it's Lois because of the glasses ... it's the perfect turn-around on the legend.

And as you say, Pam, he's not really looking at her ... he's thinking about his Lois and his efforts to find her, and he just takes what Lyn says at face value -- she's a mild-mannered reporter, looking for a story. What can be better than that?
Wonderful story, Pam. I loved it. Cute, sweet, clever and just plain fun. I completely enjoyed it.
Kathy