For the prompt on tumblr from SapphireGlyphs: Seven Deadly Sins - Choose one of the traditional seven sins as a theme.
I actually came up with this idea with greed, but envy worked better.
It is a modern AU in which Gendry and Arya are children.
Gendry is around 6 years old
Arya is around 5 years old
I hope you like it!

He knew it was wrong, but she had all the toys in the world, because her parents were rich. He just wanted to play with it for a moment, but she didn't want to give it to him and then he had took it.

Arya Stark was a year younger, but since the classes were small in the school, their classes were combined. Arya was popular everyone liked her and her cool stories. Every Monday after the weekend she had great stories about what she did with her family or what kind of pranks she had pulled off with her cool older brothers. Gendry didn't hate her for it, but he envied her. He never had any stories after the weekend. His mom had died last summer and he now lived in an orphanage. The government paid for it and social workers ran the place. The most they did in the weekend was playing soccer or a videogame. One time he told on the Monday that they had gotten a new videogame, it wasn't the newest version but everyone loved it at the orphanage and Gendry beat them all at the game. Arya had a cooler story tough and no one was interested in his.

This Monday when the teacher asked him for a story he as usual shook his head. He had heard that the teacher was concerned about him, he was turning more and more quiet. He just didn't had anything to say and he didn't had any real friends.

Arya was again the star on Monday, she went to a big entertainment park. Gendry didn't knew what that was exactly, but he didn't want to ask and look stupid. She then had shown the fake plastic sword she had gotten from her father. Everyone admired her and the sword. She had seen knights fight in a kind of tourney with real horses and she had been in all kind of attractions. Gendry now got an idea what an entertainment park was. It sounded like paradise and he wished he could go there.

During the break everyone went to Arya and looked at her sword, that she named needle. She showed how to fight and stuck down one of the boys and saved the princes. He just fell down when she hit him with the sword and the princess was one of the girls from their class. He was just sitting on the swings, normally he never got a chance on the swings. But now everyone played with Arya. So he enjoyed it while he could, but the swings weren't much fun when you were alone and no one was admiring you.

Gendry just didn't fit in, he was the biggest and looked old for his age and he never was good with other kids.

After school he sat down waiting for the taxi from the orphanage. It happened more often than not that they were late with picking him up. He was just sitting on the stone wall next to the street, when he felt someone sitting next to him.

He looked up when he saw Arya sitting there with her sword smiling up to him, "Are your parents also late with getting you?" No one from his class knew about him being an orphan, only the teacher.

He shook his head, "The taxi is late, happens more often."

"The taxi? You are taking a taxi home?" she seemed more curious than mean about it. He knew why Arya was popular, because she was nice. She never was not nice to him. That is why he couldn't hate her, but he envied her.

Again he shook his head and stared to his feet, "I have no home."

There was a silence and when he looked up he could see that she was confused, "But how can you not have a home? Where do you live?"

He hated taking about himself and fidgeted with his fingers while his legs went fort and back, "I live with other children. We are all waiting for a home."

She bit her lip and seemed to think, "So are that your brothers and sisters? And what are you waiting for?"

He shook his head again, "No we are no family, we are waiting for a family. We are waiting for a mother or father to pick us up."

"Like how I got my dog from the shelter?" She asked, still not understanding the concept.

"No not like your stupid dog from the shelter," He snapped. He actually just envied her for having a dog, a mother, father and her cool brothers.

Her eyes widened and tears were forming in her eyes and she rubbed them. She jumped of the wall and looked angry at him. "My dog is not stupid! Nymeria is smart and can do tricks and is really sweet and you are the stupid one!"

He also jumped of the wall and just shrugged, he didn't mean to insult her dog, not really. He just wanted a dog and a cool sword that a father bought for you. "Let me see your sword."

"No. Go away. I don't like you anymore." She turned away but his hands are longer and he reached around her and grabbed the sword. Now he was cool, because he had the sword. "Give it back!" She tried to reach for the sword but he hold it up to high for her. She was now really crying and tried to reach for it, "Give it back! It is mine not yours!" He wanted to say that she already had enough. But then the car came up with her father and he was in trouble.

The grownups were talking while he was sitting in a chair, looking at his shoes. He was sorry, he didn't mean to hurt her. He just also wanted to have something, to be cool. Arya sat next to him, clutching the sword to her chest and still sniffing. He heard their teacher say something about his mom, the orphanage and something about her worrying about him. Arya's father looked less angry at him and he now looked at him with that look. The look that everyone gave him the summer when he heard that his mother was gone.

"I'm sorry," he mumbled loud enough for Arya to hear. The only response that he got from her was more sniffing and he felt even more bad. He just wanted what she had. He wanted something what didn't belong to him.

After Arya was gone he sat with the teacher waiting for the taxi, which didn't came. She took him to the orphanage after an hour. They apologized later that something was wrong with the route, a new driver that forgot his school. He didn't understand. He just went to his room that he shared with seven other boys. The room had four bunk beds on each side two, he had lower bed from the right one in the back of the room. He liked it that he could be in the back where no one noticed him. He knew that there had been parents today, he had hoped to get out of there. But he had missed their visit due to the taxi that didn't show up. He tried not to cry, but he ended up crying under his covers, so no one would notice. He just wanted to go home, he just wanted his mom, he just wanted to feel wanted and loved.

Now Edric the baby got a home and would grow up feeling wanted and loved. A lot of people preferred baby's to older children, even when he wasn't even the oldest. Like Mya who was already fourteen and the chance that she would find a family that would adopt her was small.

The next day in school went by as normal. Except that when he sat down in the sand box and pretend to play, he felt something next to him. Arya sat next to him with a bucket and a shovel. She started working on a sandcastle with him.

"I am sorry." He heard her say and he looked up to her strangely and shook his head. "I am sorry, I shouldn't have taken your sword."

She then gave him a small smile and he immediately felt better. "I shouldn't have said those things. My father explained it."

"It doesn't matter." He muttered while putting the bucked upside down to create a castle. They didn't say anything more and just continued making sandcastles.

It was Friday when he was playing the videogame. He was busy playing and didn't hear the girl enter. "Can I play with you?"

Gendry looked up and looked with surprise to Arya, "What are you doing here?" he didn't sound hostile, he just was confused. Arya had a family and home, she had no reason to be here.

She dropped next to him and took the other controller, he started another game for two players and she started to explain. "I am here with my father. He talked with my mom, because we have still an empty room. And my father said that you will come live with us." Gendry dropped the controller and gasped looking at her in surprise. She just smiled at him. "Isn't that great?"

He just nodded and his face scrunched up, "You mean for the rest of my life, not for a short time?"

She nodded, "Yeah before my parents had me, my sister and my brothers they had adopted Theon and we have an extra room and with him and Robb and Jon and Bran, you will be my fifth brother." She beamed at him and he still couldn't belief it. He managed a small smile, but the moment that he walked out of the orphanage with his stuff, Arya and Arya's father, he beamed to.

Monday morning Arya was so excited that she immediately started to talk, "Gendry moved in with us, he is my fifth brother!" Everyone was now looking at the both of them and asked questions. In the break he and Arya were both on the swings with some other kids around them admiring and waiting for their turn. Gendry smiled and felt for the first time wanted and loved.