Haha! Thanks Mouse! I like to think that teaming up Clark and Jimmy was the saving grace that allowed them to pull off the prank.
And Loki was a no-brainer for me, as a lover of mythology. How could Clark possibly use any other name? Plus, in a way, he was actually being nice to Lois by using the name Loki. It was like he was tipping her off to the fact that it was a prank, but of course Lois would miss the reference.
I'm glad you liked Clark getting into Lois' mind a little. I figured, by this point in their friendship, he'd be affecting her at least in little ways. (I know I tend to pick up phrases that my friends use after being around them for a little while.)
But the real question is...did I just condemn myself to having to come up with revenge for Lois next year? Because that is scary!