1. Jaime And Cersei Engaging In Twincest
Imagine a Westeros wherein Cersei and Jaime were not engaging in a long incestuous affair that produced her only three children. Imagine if Cersei were a loyal wife to Robert and had borne him legitimate children to serve as true heirs to the Iron Throne. Imagine if Jaime served his position as Lord Commander of the Kingsguard with dignity and honor, holding Robert in the high regard that one should have for their king. Can you imagine it? Me neither. But it sounds extraordinarily boring. Seriously, though, all the death and grief and overall terrible events that have befallen Westeros can be pinpointed to these two not being able to keep it in their pants. The knowledge that Joffrey is the son of his mother and his uncle, and not of Robert Baratheon ultimately ends in the deaths of Jon Arryn and Ned Stark. And c'mon, Lannister lovers, if you knew Jon Arryn had found out about your affair and inbreeding, surely you could have at least destroyed the evidence showing that Baratheon children were all black-haired. After all, Grand Maester Pycell seemed willing to lend his book The Lineages and Histories of the Great Houses of the Seven Kingdoms to just about anyone. A little discretion on the Lannister's part could have spared Westeros from utter chaos.