 After the destruction of Sodom and Gomorrah, the daughters of Lot had sexual relations with their father, resulting in Ammon and his half brother, Moab, being conceived.This narrative was previously considered literal fact, but is now generally interpreted as recording a gross popular irony by which the Israelites expressed their loathing of the Moabites and Ammonites.However, according to the same source, doubts remain as to whether the Israelites would have been willing to attribute such an irony to Lot himself.