
Firstborn: Come, let us make our father drink wine, and we will lie with him, that we may preserve seed of our father.
Younger: Hold on now. Let's not be to quick here. We just saw the cities in the plain get destroyed, but there might be other people on the other sides of these mountains.
Firstborn: I don't think so. Let's not waste time. We need to get some kids going and fast. I'll get dad drunk tonight, you go tomorrow.
Younger: I really think we need to think this through. Maybe we should pray about it, and ask God if there is any other way. Besides, it won't just be us and Dad. We're also going to have to figure out the logistics of our children having children and so on. How much wine are we going to need for that...?
for what it's worth, here's how the CES manual explains it:
The account of the incestuous seduction of Lot by his two daughters is a shocking one but one which, again, illustrates that the Old Testament records the evils of the people as well as their righteousness. There is no way to justify the wickedness of what the two daughters did, although it may be better understood when it is considered that the daughters may have thought that the whole world had been destroyed in the holocaust that befell Sodom and Gomorrah and that Lot was the only source of children left to them. Moses may have included this account in the record because it shows the beginnings of the Moabites and the Ammonites, two peoples that would play an important role in the history of the people of Israel.
Of course, the big question is why LDS would find the story of Lot any more disturbing than the story of Adam and Eve. If A&E were truly the "first parents", then there had to be a lot of father/daughter- mother/son - brother/sister incest going on to get the ball rolling. Much more than just the two drunken nights in Genesis 19, yet no one bats an eye. And I doubt anyone was drunk for those encounters. Everyone knew what they were doing.