Was thinking that, too, Michael. Would be very interesting. And what if (and this is unlikely) Clark didn't actually tell her he was Superman beforehand?
Again, not really likely, but I can see Lois just pushing him through this sort of thing and he just gets caught up in the whirlwind and, whoops...
"Yes! That oughta get the tabloids off my back about shacking up with Superman!"
"Um, Lois, about that..."