The scenario here is totally original
Am wondering if 'totally orginal' is really the right phrase here, MDL, given that the scenario arises out of TOGoM and also that ML's Second Stage of Grief dealt with Lois using sex as a way of dealing with Clark's death in TOGOM. (Sorry to repeat this point but I do think it's important to acknowledge the earlier story)
In fact, it's really very difficult, imo, to write a fic that is totally orginal yet doesn't have either CK/S or Lois acting out of character or contradict key bits of canon.
This is not to say, though, that Wendy and Kae's writing is not good stuff:) and that sex with Superman in these circumstances is not an interesting premise. And who knows what will happen next.
cc m