Lot impregnates his two daughters - incest on at least 2 different occasions - to have sons [what knowledge existed in that they could time sexual activity to give birth to sons only]
He is deceived into performing at least 2 separate sexual acts when drunk - too intoxicated to remember, but not too bombed to perform, Genesis 19:32 - come, let us make our father drink wine, & we will lie with him, that we may preserve seed of our father Genesis 19:36: - thus were both the daughters of Lot with child by their father
No punishment - as was the case with Ham
What observer would have related such a private matter to the scribes
How did the scribes even know that these incestuous acts took place
How do Lot's daughters explain these births to their father [who wants the family name to continue] & to their spouses
Why establish such activities took place, unless they hold a different significance
Odd is 2 Peter 2:7-8 "That righteous man [Lot]." Seems the incest acts with his daughters is not considered a sin