Written for the challenge "Harry is the bastard son of Jaime Lannister"

Requirements: Harry is conceived before Jaime joins the Kingsguard

Tywin finds out about Harry's birth and brings him to Casterly Rock to train him to be heir

Harry and Jaime have a close relationship

Cersei hates Harry

Harry has his father's looks and some of his skills and talents

Harry should be more confident with his skills and with females than in the books.

There were more, put posting them here could potentially give away some major plot points that I have planned. Anyways, please enjoy.

Chapter 1

The procession was huge.

That was the first thought in Harry's head as he sat upon the golden brown mare that had carried him from King's Landing to Casterly Rock and then to the land near Rosby where the caravan had stopped for the night. The aforementioned caravan was made up of an obscenely large wheelhouse being used by his own loving aunt, Cersei Lannister, Queen of the seven kingdoms. There was also an abundance of carriages carrying supplies and clothing and some weapons or armour for the various knights and guardsmen in Kings Landing.

Of course when Harry said 'loving' he meant 'loathed with every fiber of her being'. For some reason she didn't like the fact that her brother had a bastard son, and she liked it even less when, at the age of four; only a few years after the end of the Rebellion; his Lord Grandfather Tywin Lannister had summoned him to Casterly Rock from his former home in a village near the Kingswood.

The Lord of the Westerlands hated his second son. Tyrion Lannister was a dwarf who enjoyed three things: Whoring, reading and drinking. The man was highly intelligent and always treated Harry kindly, with a word of advice or a simple joke to cheer him up, but his birth had killed his mother and Tywin had never forgiven him. The Old Lion didn't want the Lordship of his House to fall to Tyrion and since Jaime was Kingsguard he had only two options: his brother Kevan or his son Jaime's baseborn son.

Harry had been born half a year after the Tourney of Harrenhall, part way into Robert Baratheon's uprising against the Targaryen dynasty. After the battle against the Kingswood Brotherhood, his father; only five and ten at the time; had lain with his mother on his way back to Kings Landing, resulting in him being conceived.

Harry had taken after his father in looks. He had the striking emerald eyes of his father, and was similarly built with a tall and slender frame. His mothers hair colour had darkened the shade of his own but he did possess blonde hair as was typical of his family; it just wasn't the elegant golden locks that his father, uncle, aunt, great uncle, cousins or his grandfather's third cousins nephew had...it was a sore point for him.

He'd never known his mother. She was one of the whore's in that village, and he didn't know which.

At age three, following the end of the Targaryen rule, his father had found him. While Jaime was unable to take him in for safety reasons, the man had made sure his child never went hungry and had hired a grizzled, scarred, one-eyed sellsword by the name of Eryck to serve as a companion and protector to him. Of course, Harry mused, Jaime should have known better than to try and keep a secret from Tywin Lannister for it was only a year later that the former Hand had found him and taken him to be tutored the same place his father had grown up.

For ten years he lived at Casterly Rock with his family, with Lord Tywin trying to convince King Robert to grant a legitimization for Harry. It was the best time of his life. He got to meet various bannermen of his grandfather over those years and even visited the keep's of the most prominent; such as House's Lefford, Crakehall or the Lannisport Lannister's; or those held in the highest regard by Lord Tywin, like the Marbrand's and Clegane's.

But for the most part he was trained to be the heir Tywin always wanted. The Lord of the Rock spent one or two hours personally tutoring Harry in the art of leadership; how to rule a House, which Lords he could trust, which needed to be watched. He learned about the History of the seven kingdoms but the most time was spent on the Westerlands. He learned the geography, the good defensive positions or routes for armies to march through, formation and strategy. He was taught numbers and letters on Tywin's order's "No Lannister will be unable to read and write".

His combat training was much more fun, in Harry's personal opinion though he did not disregard any of his academic's. He was taught how to ride by Addam Marbrand. He was a natural at swordplay which he was instructed on by the Master-at-Arms Ser Benedict Broom and his Eryck, who had been knighted and kept on as a sworn shield.

The part Harry had loved most was the visit's from his father. Jaime was a good man despite what many said. He'd taken the time to see his son and train with him, putting up with Robert's jokes so the man would have no cause to prevent him. He also defended his child against Cersei, a fact Harry knew from having heard the two arguing over it.

Harry loved his father and didn't care about the act he was so hated and mocked for.

Robert had eventually agreed to give Harry the name Lannister two years previously. However he'd requested that Harry come to court and serve as a squire to Ser Barristan Selmy for two namedays. He'd just turned four and ten, and had already squired for Ser Daven Lannister for two years when this had been agreed and so he'd packed his bags and traveled with his father to the Red Keep. He had loved serving as a squire for the famous knight; his swordsmanship increased drastically under the combined training by five of the Kingsguard (Blount and Trant not having any skill of their own) and he knew how to treat weapons and armour properly.

With his six and tenth nameday approaching, Harry would soon be able to take the name Lannister and take his place as heir to Casterly Rock.

"Milord?" a gruff voice drew him from his thoughts. Harry turned around and faced Eryck "The King has summoned you to his pavilion,"

Harry nodded and spurred his mount into a gentle trot, trusting that his loyal friend would follow him.

Harry dismounted as they approached the area in which the King had settled down. The reason for such a large trip was that Jon Arryn, Hand of the King for fourteen years, had died and the King had unreasonably wanted to make the Quiet Wolf Eddard Stark his replacement instead of someone like King Robert's own brother, Stannis, or Lord Tywin.

As they approached the King's pavilion, Harry caught sight of a young boy with light brown hair dressed in light armour and clothing. The boy was wearing sturdy black boots, breeches, a sleeveless brown jacket laced at the front over a hooded, white cotton shirt. A leather bracer was tied around each of the upper and lower arms. Over his back was a bow and quiver full of arrows, with a sword on his hip. The boy was talking to a man just into his thirties with golden blonde hair and striking resemblance to Harry himself.

"Father! Will!" he called out. William Buckwell, a boy of twelve, and Ser Jaime Lannister looked up as he approached.

"Harry! By the Gods you look as though you're even bigger than you were three moons ago," Jaime said, briefly embracing his son.

Harry turned to William and the two clasped forearms. Despite the four years age difference the two were good friends. Harry greeted the young archer with their usual phrase of "Shoot straight," to which William replied with "Strike strong, my friend,"

Jaime grinned. He wouldn't ever admit it to anyone but he was rather fond of William. The boy was talented with his bow, one of the greatest shots he'd ever seen. The lad could win every archery contest held if he so wished. He also liked that his son was so close with the boy. They would both do anything for the other: they were as close as brothers and had been for two years, ever since Harry had come to Kings Landing. Funnily enough, their bond of brotherhood had begun with a them beating each other black and blue.

Jaime had found his son pinning the youngest son of Lord Buckwell in one of the corridors of the Red Keep raining fists down upon the boy. But William, for someone much smaller than Harry, was surprisingly effective in his own counter attacks. They were both sentenced to clean every weapon in the armory as punishment, though they ended up stealing some old, rarely used knives and competed against each other in a throwing game to try to impress a girl they both wanted to court. They both got rejected after a knife nearly sliced the dress right off her body, got drunk and then carried each other back to Harry's chamber. William woke up on Harry's chair the next morning with a stiff neck, whilst Harry had a headache from hanging upside down off the side of the bed.

They'd been best friends ever since.

Harry smiled at them both, and then straightened his expression "The King wished to see me. I presume his outriders sent word of my approach?"

"You'd be presuming right," Will said.

Jaime nodded and began to lead his son towards the black and gold pavilion. Harry wrinkled his nose and scrunched his face up at the sight of it. The colours were even more obnoxious than the Lannister red and gold, or the Tyrell green and gold. And he'd thought both of those were overly extravagant.

As the four entered the tent, they heard the end of a discussion between King Robert and the infamous Eddard Stark. The man certainly fitted what Harry had heard about the grim Lord of Winterfell. He was tall and lean, a little taller than Jaime and broader too, dark haired with grey eyes and a long face. He was wearing plain grey and white clothing which, while neatly tailored, held no fanciful embroideries or decorations. The King looked much the same as he had when the royal entourage had left: fat and red faced with thick, coarse black hair and bushy beard that failed to hide his multiple chins. As was typical of the man, he held a cup of strong smelling wine in his hand.

"Kingslayer!" Baratheon boomed as Harry and his father entered the tent and approached his desk, William and Eryck remaining by the entrance to the tent with Ser Barristan, Ser Mandon and the Stark captain of the guards. Harry had the same elegant movements as his father but where Jaime swaggered everywhere arrogantly, Harry was much more refined. He held himself with confidence but refrained from giving others an impression of self-righteousness. He was only a bastard after all.

"Your grace," Jaime bowed, Harry copying his words and actions.

Stark tilted his head at Harry, looking slightly curious.

"Jaime's bastard," Robert grunted "Tywin bloody Lannister's been demanding I give him the Lannister name for years. Wants the boy to be his heir,"

"Heir? I thought Lord Tywin had another son; Tyrion," Stark asked

"My father doesn't think very highly of my little brother, Lord Stark. When he heard I'd had a son from before I joined the Kingsguard, he jumped on the chance," Jaime explained.

Stark nodded to show he understood the situation, even if he probably didn't agree.

"I'll leave you to your business, your grace. We should arrive in King's Landing by noon tomorrow, should we not?"

"Aye," Robert barked, and his new Hand left the tent, his man; Castle, or something like that; leaving with him. Harry wasn't very clear on Northern house's: Only the biggest names, and even then it was only really the Stark family he knew anything about.

"You summoned me, my King?" Harry inquired

"Of course I did. Sit down," Harry sat, his father standing beside him, "We're hosting a tourney when we get back to the city" Of course he is. More loan's from Grandfather, "and you're going to be in either the joust or melee. If you do well, I'll legitimize you on the field, and throw in a knighthood while we're at it," Robert laughed, and Harry's eyes widened. A knight. I could be a knight within a moon's turn!

Harry readily agreed and was soon after dismissed. As he was walking through the encampment, he took a glance around, taking in all he could see. Ilyn Payne was sitting on a rock, sharpening his greatsword. A glimpse of the charismatic Lord Renly. A young girl looking remarkably like Lord Stark running around.

"Where's uncle Tyrion?" Harry asked, not being able to spot the man anywhere.

"He decided to spend some quality time in the company of Benjen Stark and dear Ned's own bastard on the way to wall," Jaime replied with an easy grin.

"He's joining the watch?" Harry asked incredulously.

William muttered, "The whores would go begging from Dorne to Casterly Rock"

Jaime smiled again "Funny enough that's exactly what he said," Harry snorted "No. He's gone to, in his word's, 'piss of the edge of the world'"

Harry was about to reply but was cut off by a cry of delight. He turned just in time to be hit by a pair of blonde missile's crashing into his chest.

"Hello, small cousin's," he teased "How is the world from down there,"

"Shut up, Harry," Tommen said punching him on the arm with all of his ten year old might, "I'll be as tall as you in a few years,"

"I'm sure you will. And you, Myrcella! You'll be more beautiful than your mother soon,"

"Aye she will," William jumped in, flashing a charming grin at the two young royals which caused them both to blush, instead of just his female cousin as Harry had expected.

"How have you been my favourite cousins?" Harry asked, before leaning in and murmuring quietly enough that he would not be overheard "Has Joffrey left you alone?"

They both nodded, but they could not continue their conversation they were interrupted by a voice none of them wanted to hear.

"Tommen! Myrcella! Don't run off like that. After your brother was mauled by that vicious girl, I expected you to be more careful with all of these northerners about," Cersei Lannister regally approached the rapidly growing group.

"Sister dearest!" Jaime called out jovially, trying to bring his twins attention onto himself rather than his son "You look ravishing. Surely you don't mean to imply that I can't look after my niece and nephew after they've come to say hello to their most handsome uncle?"

"I believe that title belongs to Renly," William mocked while Eryck muttered something about men who spent far too much time on looks.

"Well, old man, I wouldn't expect you to understand," Jaime jabbed back

However Cersei focused in on Harry. Her face remained neutral but Harry noticed the way she tensed up, her eyes hardened and her lips thinned. Still hates me, Harry analyzed.

"You're back then," she said flatly

"Evidently. I know how glad you are to see me, but I'm afraid we'll have to cut this short. It's been a long journey and I'd like to freshen up. Tom, 'Cella, I'll see you later," Harry said hugging both briefly before allowing them to leave with their mother. By the way her nostrils were flaring, she would not be pleasant company and he felt sorry for his cousins having to endure her.

That night, Harry lay awake on his bed. Being in the tent felt constricting and closed in, though his father's presence just across from him was comforting, as was the knowledge that Will was sleeping in a tree directly above. The experience, as it always had, brought up memories he tried to keep buried. Because he wasn't always Harry Lannister. He was once known as Harry James Potter.

So, hope you enjoyed the first chapter. Review and let me know what you think.

Cya next time! Yozza Out!