I do not own Scooby Doo. I only own Tiffani and Lexi.

Story Start

"Tiffani, quit chasing the neighbor's cat and bring me the mail," Lexi yelled irritated as she waited for the coffee to finish making.

A white Great Dane with black spots walked through the doggy door and into the house with the mail in its mouth. The dog walked into the kitchen and stood on its back legs to put the mail on the kitchen island.

"Tiffani, how many times do I have to tell you to not chase the neighbor's cat?" Lexi asked with a sigh before smiling happily when her coffee was done.

"Well when the cat stops pooping in my yard then I'll stop chasing it," Tiffani, the Great Dane talked and gave a goofy grin to Lexi. Tiffani held out a coffee mug, which made Lexi laugh.

"You with coffee is always a mistake," Lexi said before giving her dog coffee.

"What's for breakfast?" Tiffani asked before poking her head around in the refrigerator.

"I don't know yet," Lexi said as she started looking through the mail.

"I could make biscuits," Tiffani said.

"Do not mix dog biscuits in there with them," Lexi warned before she yelped in excitement at the letter she was holding.

"What is it? A lifetime supply of dog food?" Tiffani asked with a smile and her tongue hanging out.

"I won two tickets to that new amusement park, Spooky Island. It says it includes a few days stay at the resort and all you can eat, along with the amusement park," Lexi read as she placed the tickets on the kitchen island.

"All you can eat," Tiffani muttered with a dreamy look.

"Who can I take with me?" Lexi asked as she looked down at the two tickets.

"Me," Tiffani barked and danced around Lexi on her two back legs.

"You're a dog," Lexi said with a raised eyebrow.

"I'm a talking dog," Tiffani said and then started to give Lexi the pouting puppy dog look.

"Well you are still a dog," Lexi said and she paused when Tiffani held up part of her paw for Lexi to wait. Tiffani disappeared and Lexi could hear some things crash to the ground and a whine from her dog.

Tiffani came back wearing a skirt, a hoodie, sunglasses, and a beach hat. "I can go in disguise," she said and spun around for Lexi to see the full effect.

"Fine, but if they figure out that you are a dog then I'm going alone and you can watch the house," Lexi said before quickly grabbing the tickets and running to her room to pack. Tiffani walked over to her dog bed and started packing up some of her toys, an extra collar, her blanket, and a teddy bear.

"Get some sleep and we will be leaving for Spooky Island tomorrow," Lexi yelled happily before coughing when Tiffani jumped on her and her bed. "Go to your own bed," she yelled with a laugh and pushed Tiffani off the bed.

The night passed quickly and soon the friends were at the airport. Tiffani was in her disguise and Lexi was hoping that her dog was not discovered. Lexi had bought Tiffani a magazine so she could cover her face with that when they were waiting to board the plane.

Lexi was surprised when she saw Fred, Daphne, and Velma from Mystery Inc., which had split up a few years ago. She used to read or watch television about the mysteries they solved all the time. She wondered where Shaggy and Scooby were. She had a slight crush on Shaggy, but how could she not. She also knew that Tiffani liked Scooby, but her crazy dog would always deny it when asked.

"Now boarding the flight to Spooky Island," the worker said from the ticket booth. Lexi stood up, grabbed her carryon bag, and motioned for Tiffani to stand as well. Tiffani hid her face behind the magazine while Lexi gave the woman their tickets. The two friends made their way into the plane and Lexi had to grab Tiffani's paw to move them quickly to their seats so Tiffani would not attack the cat, which was also on the plane.

Lexi crossed her fingers that Tiffani would behave, because it seemed that they would not be sitting together. She quit focusing on Tiffani when somebody sat beside her. She looked up and almost lost her breath. Shaggy from Mystery Inc. was sitting beside her. She saw him give some old grandma a worried look before he smiled at her.

"Hi, my name is Shaggy," he said and held out his hand.

"I'm Lexi, nice to meet you," she said and shook his hand.

"Groovy, our names both start with 'sh'," he said after the handshake.

"You excited to go to Spooky Island?" she asked and laughed at his dreaming face.

"All you can eat," he said and she laughed even more.

"That's what my friend Tiffani is excited about too," Lexi said and Shaggy gave her a questioning look. She pointed back at Tiffani, who was munching on some dog treats that Lexi had packed her in carryon bag.

"Are those dog treats?" Shaggy asked curiously.

"She eats them all the time," Lexi answered hoping he would not think Tiffani was a dog.

"Then you have a good friend. I eat dog treats all the time," Shaggy said with his cute smile.

"They're homemade by me, would you like to try one?" Lexi asked and hoped she was not blushing.

"Really? Sweet, I would love one," he said and Lexi whistled. Tiffani looked at her curiously before smirking when she saw Shaggy by Lexi.

"Tiffani, pass me the treats," Lexi said and Tiffani pouted before throwing the bag of treats at Lexi.

"Now what do I eat," Tiffani muttered before looking around the plane. She tilted her head when she saw a grandma, who smelled like a dog instead of a person.

Shaggy tried one of the treats and his eyes lit up in joy. "These are amazing," he said and Lexi handed him the bag.

"Enjoy them, I'm glad you like them," she said and she started talking recipes with him for now.

Tiffani was still watching the grandma when the person besides the grandma started sneezing and would not stop. The person was a woman with blonde hair. "I'm sorry, but could you move? My allergies are bothering me really bad and I don't want to sneeze all over you the whole flight," the woman said sweetly but Tiffani just glared at her.

"More like you are allergic to dogs and just want the grandma to move instead of you move," Tiffani thought. "Well the only other seat open is by me and she'd sneeze then too," she thought before the grandma started sauntering over to her. She smiled at the grandma, who smiled back. However, when the grandma sat down, Tiffani got a good smell and she leaned in closer.

"Are you a dog too?" she whispered and the grandma jumped.

"I'm not a dog, I'm a grandma," the grandma or dog replied back and Tiffani found it cute how they pronounced everything with an 'r' sound at the beginning.

"I'm a dog," Tiffani said and took off her sunglasses.

"Want a Scooby snack?" the grandma, who smiled after Tiffani admitted she was a dog, asked before he told Tiffani that he was also a dog.

"Lexi took away my treats so I would love a Scooby snack. My name is Tiffani," she said with a smile before taking a treat.

"I'm Scooby Doo," the dog beside her introduced himself. They smiled at each other before the cat from earlier started hissing at them.