I have to admit on the first reading I was just shocked at what Lois was doing. However after getting though I went back and re-read it. I realized that not only was there no mention of Luthor, but that Clark's "what about ..." line totally works. He is about to say "what about waiting until the wedding night".
I have to admit that on first reading I was shocked that Clark would make love to a women without telling her his secret. On second reading I realized this is because she already knows.
