Jaime:
Casterly Rock hadn't been this lively since the time of Joanna Lannister. His mother was a true lioness. In those days, his father had been Aerys's Hand, and many people said that Lord Tywin Lannister ruled the Seven Kingdoms, but Lady Joanna ruled Lord Tywin.
This brought a sad smile to Jaime Lannister, the current lord of Casterly Rock and Warden of the Westerlands, who was watching his Lady wife Sansa Lannister running his household just like his mother did once. Preparing the castle for the arrival of her once brother now cousin King Jaehaerys Targaryen, third of his name and the king of Westeros.
"You are doing it again", a soft voice of his aunt Genna Lannister broke Jaime's train of thoughts.
"Doing what?" replied Jaime replied forcing his best possible smile for his aunt.
His Aunt looked at him sadly.
"How are you?" Aunt Genna asked suddenly, her brows furrowing.
Jaime squeezed his eyes shut and whispered, "How did you know something was wrong?".
She gave him a sad look. "I always know when something is bothering you."
Jaime sighed "Just thinking about My Mother".
Genna pinched Jaime's ear just like she always did when he was a child and said, "If she were alive today, she would have been so happy of you!. Just like me".
Seeing his Aunt's smile brought heavy shame to Jaime. 'She lost three of her children as well. Still managed to view things positively'.
"Where are Tion, Tywin, and Willem ?" questioned Jaime.
Tion Frey is the only surviving son of Aunt Genna and her late husband Emmon Frey. Emmon Frey was killed by the Blackfish who infiltrated the Riverrun and slashed Emmon throat in the middle of the night. Tywin and Willem are Cleos Frey's sons and Aunt Genna's grandchildren. Tywin was denied the lordship of Twins and the surrounding lands by the King who then proceeded to burn down the abandoned Twins to the ground just to showcase his power.
"They are still in Cornfield and I sent a raven to Lord Swyft and requested him to let them stay for few more weeks".
"Good. I don't want them here. If the King sees them, no one knows what he will do?"
"Well, it's time for me to leave. Your wife might need my help" said Aunt Genna.
"She doesn't need any help to receive her cousin. You should go and take some rest" Jaime replied.
"That's true. She is a lioness just like your mother, isn't she" Aunt Genna said and left without a glance.
'Sansa could have been the lioness of Casterly Rock'. Except, Sansa isn't a lioness. She is a wolf'Jaime thought bitterly.
And the wolves only mate with each other. Her mate is far away, in the shithole they call King's Landing, sitting on that cursed throne and ruling the kingdom with his wife and queen Margaery Tyrell now a Targaryen.
Jaime and Sansa wed in front of the heart tree at Winterfell. A political match demanded by the lords of Westerlands, who feared that the northerners will turn on them once the great war is over. Since Tyrion found Tysha and wed her, it falls to Jaime to wed Sansa. A sham of a marriage. They did their marital duties only handful of times in last five years. It was her cousin's touch and seed she craved and it was her cousin's name she moaned in silent.
Jaime couldn't fault Sansa for her love towards her cousin. Jaime understands it pretty well. After all, his love for Cersei was the same. If it wasn't for those damned Tyrells, Jon and Sansa could have married each other. Alas, Jon wed Margaery in return for men and resources to fight the great war.
Seeing Sansa and her children makes Jaime realize his own mistakes. He and Cersei did the same thing to Robert Baratheon and pushed an innocent boy who witnessed them in the act. Despite a civilized relationship between Jaime and Sansa, it's the one thing Sansa never forgave Jaime for. Injuring her brother which started a war and decimation of half of her family. Perhaps this is why she decided to take revenge on House Lannister in her own way or Cersei's way. 'I lost all my family too because of that damned war, why she didn't see that' Jaime thought sadly.
He wanted to repent all his past mistakes, he wants to be a better man than Robert Baratheon. It's the same reason why he kept silent about his wife's affair and her children. Tyrion, now the hand of the King is the only one who knows about the parentage of Sansa's children. It's hard for him not to notice since Sansa spends most of her time in last five years in the company of her Cousin and his wife in that damned shithole.
Tyrion as wise as he always, advised Jaime to keep silent, correctly pointing out even if the truth comes out they got no proof and nothing will stop Jon Snow from burning Casterly Rock to the ground or Arya Stark, now the master of Whisperers in the Small Council to infiltrate Casterly Rock and killing him in his sleep if any harm comes to Sansa and her children. And not to forget the what current Lord of Winterfell and Warden of the North Rickon Stark will do? 'The pack do take care of each other'.
In the End, Jaime accepted Tyrion's plan to wed his daughter Joanna Lannister to Sansa's eldest bastard and current heir black haired blue eyed Eddrick Lannister. Thus the future lord will have a Lannister Blood. The people of Westerlands loves Eddrick who they say inhabited his grandfather Eddard Stark's features. 'Eddard Stark was a dead man and stranger to the people yet he was loved more than Lord Tywin Lannister' Jaime thought sadly.
'But Lord Tywin doesn't want to be loved'
Despite all this, Jaime holds a tremendous amount of love for the Children. The second child, Myrcella Lannister who was named after his own daughter Myrcella Baratheon. She is all her mother in looks. Sansa at least granted him mercy by naming her as Myrcella. It was the birth of Myrcella which made Jaime forgive his wife's adultery and changed his manner towards Sansa. He promised that day that he will be a good father to his wife's children like he should have been to Joffery, Myrcella and Tommen.
Jon Snow or Jaehaerys arrives tomorrow on a Dragon's back bringing his Eldest daughter Princess Lyanna Targaryen with him. No doubt he will take Lady Sansa Lannister on a ride.