Just read this story. And loved it. Lois as a naughty elf is priceless. But Lois fearing to be unable to talk to her own child - what with her babble gene and all - is even better.
About the author... I've got no idea. Sure, there is a Batman reference (again), but that seems a little out-of-place, put in there to confuse us. So, I don't think it's Lara. One of her betas, though... That's a thought. That narrows down the field to... Sue, DJ, CatBruce and I don't know who else.
Then, of course, it's obvious that there was a dirty mind at work. The elf who sleeps with the boss, indeed! Unfortunately, that hint doesn't quite narrow down the field, quite the contrary.