Sibling Rivalry

Disclaimer: I do not, I repeat do NOT own Danny Phantom.

Rating: K+

Suspense/Action/Adventure

Summary: When the Fenton Portal begins to break down, Jazz decides to help fix it, only she ends up getting zapped by it, just like Danny! While she was down there, Danny saw this happen and decides to keep it a secret from her. Now that Jazz has ghost powers, she decides to help Danny with his ghost fighting. Unfortunately, Jazz ends up getting tricked by Vlad and she may have made the biggest mistake of her life! Will Jazz ever fix her mistake? Or will she end up destroying her little brother?

Authors Note: This is my first Fan fiction ever so tell me if there is anything I need to work on. CalicoKitty13 helped me with my story a little so if you liked her story, True Friendship,then I hope that you'll enjoy mine. Please read and review!

Chapter 1: Jazz's Concern

Jasmine Alexandra Fenton was as normal as anyone would think. But that's not how she sees it. If anyone found out about her family and what they do, she'd be considered a lunatic. Jasmine, or Jazz as she preferred, tries hard to hide the fact that her parents are ghost hunters. She thought her parents were mad, trying to hunt something that doesn't exist. Her little brother Daniel, or Danny as he liked to be called, could simply shrug it off and not be bothered by it.

But Jazz couldn't. She wouldn't accept the fact that her parents were ghost-hunting freaks. Jazz had never even seen a ghost. That was until, her parents created a machine that opened a door to the Ghost Zone. At first she was glad that the thing never worked. She just wished that her curious brother hadn't gone into it to fix it.

She had no idea that Danny had been granted with ghost powers. She and her parents thought that he got a minor shock when he went to look at it. Jazz never would have found out that her brother was half ghost if she hadn't seen him transform into his alter super fighting ego, Danny Phantom.

True, Jazz never told Danny that she knew about his powers. She figured it would be better if he told her himself. 'It'll be better for his psychological needs. He needs to be able to trust people he can relate to,' Jazz told herself. Her only concern was that Danny would one day end up beaten to a pulp by some ghost. Or worse, captured by his own parents so they could do experiments on him.

Jazz wanted to help her little brother badly. Danny's best friends Tucker and Sam were there to help him fight, but they still weren't enough to protect him. Jazz needed a way to help her brother. She hated fighting ghosts or anything to do with them, but after the little experience she had with her father, she was beginning to have second thoughts. But how? How could she help Danny without her parents, Jack and Maddie Fenton, knowing that she had suddenly taken an interest in ghost fighting? She wanted to be as normal as ever, but she didn't want Danny to be discovered. She needed to keep her identity secret from everyone around.

Shaking these thoughts out of her head, Jazz sat up from her bed and walked downstairs. She saw Danny at the dinner table. He was a mess! His raven black hair was messier than usual and his baby blue eyes were struggling to stay open. Jazz could feel tears coming to her crystal blue eyes, but she blinked them away. She could not believe her brother would go through so much suffering in one sitting.

Because of his ghost-hunting job, Danny's grades have been declining slowly and his parents began to suspect that he was doing drugs. Jazz covers up for him a lot, especially at school. His English teacher, Mr. Lancer, is quiet strict and thinks that Danny is merely slacking off with his homework.

Her thoughts were interrupted when Danny spoke.

"What are you staring at?"

"Nothing," she replied quietly.

Danny resumed eating his dinner while Jazz took a seat beside him. She picked up one of her psychology books and pretended to read. She looked at Danny through her strawberry blonde hair. She noticed that Danny had indeed, grown some muscles on his arms and chest. She had seen how built he was becoming when he came out of the shower one time with only his pants on. But then, that white t-shirt he always wore did a good job of hiding his muscles and bruises that he received when fighting spectral monsters.

He looked up from his food and saw Jazz staring at him.

"Danny, I'm really worried about you," she said when Danny looked at her.

"Why do you care?" he grumbled. Jazz could tell he was in a bad mood.

"I care because I'm your sister," she simply explained. "You sure you don't want to talk about it?"

"Positive," Danny said without looking at her.

Jazz sighed. She just wished that Danny would tell her about his secret. At some points, Jazz would almost let slip that she knew he sibling's condition. 'He needs to tell me himself,' Jazz scolded herself. Sighing once more, Jazz returned to her book. Just before she read the first line, a thought struck her. 'How exactly did Danny get his ghost powers anyway?'

But before she could ask, Danny gasped. Jazz looked up and saw a puff of blue mist came directly out of his mouth. Danny covered his mouth and looked at Jazz. 'Uh oh,' Jazz thought, 'what should I do? He's looking right at me!' She saw the bathroom door and formed an idea.

"I'll be right back Danny," She said in a false voice. "I need to use the bathroom."

Jazz quickly ran to the bathroom and shut the door, only to open the door a crack to watch her brother. Danny stood up and glanced around.

"I'm going ghost!" he shouted. Jazz covered her mouth to prevent laughing out loud. 'He has a battle cry. That's so cute!' Jazz smiled and watched her brother transform.

Two bright rings of white light appeared at Danny's waist. One moved up his torso, while the other moved down his jean-covered legs. After the rings disappeared, there no longer stood a human but a ghost. Danny's t-shirt and jeans were replaced by a black and white jumpsuit. His China blue eyes were now neon green, and his hair was now snow white instead of black. She turned intangible and flew out through the ceiling.

Two hours.

That's how long it took Danny to get home from fighting a ghost. Jazz had been sitting on the couch, tapping her finger, waiting for her brother's return. She had grown impatient now. Truthfully, she was more worried than anything else.

She felt relieved when she heard him come through the door. She got up to see him only to stop dead in her tracks. Danny was supporting a black shiner on his right eye and his left hand was clutching his right shoulder. Jazz's mouth opened when she saw that Danny's shoulder was bleeding.

"Danny wha-" she started to say but her tongue was all tied up. "W…what h-happened?"

"I-I fell w-when I went over to Tucker's house," he said nervously.

Jazz knew he was lying but she decided to buy his excuse.

"Here, let me help you."

Jazz reached out to help him, but he pushed her aside.

"I'm fine Jazz," he mumbled.

"Danny please, I just want to help…"

"I don't need any help Jazz! Just leave me alone!" he shouted.

"Danny wait!" Jazz pleaded but Danny stormed up the stairs into his room. He slammed his door shut loudly, making Jazz flinch.

Jazz sighed deeply and slumped down onto the couch. She felt tears brewing in her eyes but she forced them back down. All she wants to do is help him. 'I wish I could just help him. Any way possible,' she thought sadly.

Little did she know that her wish would become her greatest problem.

END OF CHAPTER