Twilight Fanfiction.
Jasper and Alice aren't mates in this story but just really close friends. When Bella moves to Forks to live with her dad she brings her younger Stepsister with her.

Though Charlie isn't Adaline's father she's excited to go along so that her parents can travel for her dad's career. But what will happen when Jasper discovers Della is his mate? How will Bella take this? Will Jasper have the patience to wait for her to grow up? Will Della want that life?

Chapter 1
Warning: this is gonna contain a LOT of time jumps.

Third Person
Bella and Adaline are three years apart, and though they don't share a biological father they're as close as ordinary sisters.

"Bella! Come see your new sister!" Renee called out into the house as Phil put down her bag and hovered around her, fussing. A three year old Bella came running from the lounge room eager to see her new playmate. An older woman followed the young Bella into front entry.

"Sista?" Bella said sweetly as Renee crouched on the ground to show Bella her new sister as Phil thanked their neighbour for babysitting Bella on such short notice.

"She came early." Phil said to the kind old woman. "We were going to take her to Charlie's but Renee's labour came on so unexpectedly." He added as the woman nodded with a smile.

"Anytime. Congratulations." She said before leaving the family to themselves and heading home.

"Hi sista." Bella coo'd as she looked down at the baby in her mothers arms. The baby girl wiggled a little yawning, eyes still closed. Bella looked at her with wide adoring eyes smiling brightly.

"I wuv her." Bella side brightly as she jumped up and down. Renee stood up straight chuckling.

>>>> Della 3, Bella 6
"Delly!" Bella yelled at her younger sister as Adaline snatched one of Bella's crayons and put it in her mouth. Little Bella's face scrunched up in anger as she hit her younger sisters on the head and pulled the crayon from her tiny hand.

Della let out a high pitch scream before bursting into tears. Bella glared at her as Renee and Phil entered Bella's room. Phil picked up Della soothing her.

"What happened?" Renee asked Bella as she crouched before her eldest daughter. Bella huffed but her glare dropped and she doned a guilty look realising what she had done was wrong and she was about to get in trouble.

"I didn't mean to." Bella stuttered out as she began to cry too. Renee sighed as Phil left the room with Adaline. Renee picked Bella up and rested her on her hip and wiped her daughters cheeks.

"What didn't you mean to do?" She asked only to have Bella's reply be to shake her head no and bury it into her mothers shoulder.

"It's okay I wont get mad." Renee soothed and Bella looked up at her eyes dry again. Bella gave a little sigh.

"She took my crayon and tried to eat it and, I-I hit her." She said quietly not meeting her mothers eyes. Renee sighed.

"Well first of all," She started as Bella met her eyes and held them. "You can't hit your sister, and second of all, she's not supposed to put anything but food in her mouth so if she does it again, come tell me or Phil, okay?" Renee finished as she looked at Bella seriously. Bella nodded vigorously. Renee smiled and put her back down on the ground.

"Good girl." She said as she took Bella's hand. Bella smiled up at her mum having learnt her lesson, for now at least.

"Come on lets go get lunch before you go visit Charlie, yeah?" She said leading her daughter out to the kitchen. Bella smiled excitedly.

"Daddy!" She said joyfully as she ran into the kitchen to scarf down her lunch as fast as possible.

>>>> Della 7, Bella 10
"Hurry up it's starting again!" Della yelled to her older sister Bella as the Disney movie they were watching on TV started again the ads coming to an end.

"I'm coming!" Bella yelled back, running into the lounge room with a bag of microwave popcorn all popped and warm, in her hands. The two girls giggled as they sat side by side under the same blanket eating popcorn.

"Hey you two, it's nearly Della's bedtime!" Phil said as he entered the dark loung room. The girls looked to him Bella's face sad and Della's set in a frown.

"Come on dad, can't I stay up a little later, just until this finishes?" Della pleaded with her dad. Phil shook his head but smiled.

"Just this once, okay? Then off to bed. You both need to be up early to leave for Charlie's." He reasoned. Bella and Della looked at each other with bright smiles as Phil left the room.

"Nice one, Delly." Bella said excitedly as she looked at her sister. Della grinned brightly.

"Thanks." She said cheekily as she shoved a handful of popcorn into her mouth.

>>>> Della 14, Bella 17
"Guys, come on! I love you both, but we gotta plane to catch." Phil called out to the two girls and their mother.

"Now are you both sure you're okay with this?" Renee asked as she looked at her two daughters. Bella and Della looked at each other and smiled.

"Yeah, this'll be good." Bella said smiling at her mum.

"Beside, we all know I love a good adventure." Della added smiling brightly. Renee smiled at her two girls.

"Alright, lets go." She said as they all shuffled into the car getting comfortable for the drive to the airport. This was the start of a new adventure.