Author's Notes: Yeah, I'm starting this Ben 10 and Naruto crossover. I just started watching Ben 10 and got hooked immediately. Er, I'm glad I was able to have a block of inspiration fall on me, it really helped. So, yeah, a new story. Yay me! Oh yeah, I also found out I had so many views on my stories, yay! And I got reviews, yay! And I'm on somebody's author alert list! DOUBLE THE YAY! M'kay… So, again, I'm having writer's block, so don't expect me to update so soon. Sankyu!

Disclaimer: I do not own Naruto, and/or Ben 10. If I did, Naruto and Gwen would be married, Sakura would be married to Ben, Sasuke would be on crack, Kakashi would be Ben's and Gwen's long lost uncle, Ben would be an Uzumaki, Gwen would be a Haruno, and I'd insert myself into them and make Ben and Obito mine.

All flames will be used for Heat Blast to blow your brains out.

If you flame me, Ghostfreak will take over your body and make you dance until you die.

Oh yes, comments and suggestions are GREATLY appreciated.

"Who Knew What Summer Vacation Could Bring"

Summary: Meet Benjamin and Gwendolyn Tennyson, two cousins gone teen. When Ben and Gwen go on their first summer vacation, Ben unlocks the Omnitrix. And since then, Ben has been able to become an alien. And yet, this happens, on their third summer vacation together, even though Ben thought he knew all things bizarre already.

Word Count

Including the Author's Notes, Word Count, Summary and List of Characters: 1,319 Words

The Story itself: 1,026 Words

Main Characters

Benjamin "Ben" U. Tennyson

Gwendolyn "Gwen" H. Tennyson

Maxwell "Max" Tennyson

Uzumaki Naruto

Uchiha Sasuke

Haruno Sakura

Hatake Kakashi

Other Characters

The Rookie Nine and their senseis

Ichiraku Kazuo

Ichiraku Ayame

"Damnit, this stupid watch won't work!" Ben shouted, slamming his fist on the alien-associated device, the Omnitrix. "Ben, stop being stupid and stop hitting the watch!" Gwen shouted at the taller cousin. "Ben, your cousin's right, stop hitting the watch or it might get broken," Max called out from his driver's seat.

Ben and Gwen had turned thirteen today, and were going out to celebrate. Ben wanted to go to the Sumo Slammer convention, while Gwen preferred a Magic convention. And Gwen, being the convincning female she was, got her wish. Right now they were on their way to Los Angeles, where the convention would be held.

The brown-haired teen pouted and leaned on his chair. Sometimes, when your cousin was as charming as Gwen, Ben couldn't help but pout. He didn't want Max to get mad at him, because the last time Max did, Ben had accidentally turned into Grey Matter and almost got stepped on.

Just the thought of it sent chills up and down Ben's spine, one after the other.

Gwen looked towards her older cousin and shook her head. He probably was thinking about that anime he started watching. 'Naruto' was it?

Basically, this anime was about this blonde haired doofus who wanted to be accepted in his village. And the only way for him to be accepted was to become a… Hokage? Yes, she thought that was what it was called. Gwen thought Naruto was cute, yes, even with the whiskers and the goofy personality, which reminded her SO much of Ben, she liked the Uzumaki fairly well. She also found out Ben liked Sakura. She saw him ogling her while watching the T.V. before.

"Ben, Gwen, we're here!"

Sasuke twitched as he watched his annoying team mate get up from his previous position. It seemed as though the Uzumaki had been boasting again and placed a foot on what seemed to be a rock. It suddenly revealed itself as a gopher, and when it popped its head up, Naruto had fallen over backwards. The mediator of the group, as usual, had hit Naruto across the head, even though the boy was in enough pain already.

"Kakashi-sensei had said, not to eat breakfast and be here by 6:00 AM, right Sasuke-kun?" Sakura asked as she looked towards the stoic-faced Uchiha. Sasuke, being the emotionless Uchiha he was, ignored the pink-haired Haruno, causing Sakura to have her head hung, in a sign that she was utterly depressed.

It was after three hours of Naruto's miserable attempts to get Sakura to like him and Sasuke's annoying "Hn," as a response to everything Sakura said, that Kakashi finally appeared.

"Hello, tea---"

Ben paused his LCD as he heard his grandfather call his name. The boy snuck the portable CD player in his pocket and started to walk out of the RV. 'And when they're not looking, I'll finish this episode today! The suckers,' Ben thought and smirked to himself.

Gwen was all giddy and squealed as she looked inside. It was really about magic, rather than the convention she saw when she received the keystone. Yes, the keystone was something she would never forget. The day she was called "Lucky Girl".

The girl then noticed Ben slip something in his pocket. Could it be his… LCD? Gwen slapped Ben's arm and heard his usual response.

"What the hell was that for, idiot?"

Gwen grinned and gave a peace sign. Thought Ben may have aged, and has received a number of curse words, he still had the same expression. Though the heck in his response was replaced with a hell, she couldn't blame him. He was thirteen, after all.

That's when she noticed his eyes widen in surprise.

"G-Gwen… Look," He stumbled over his words and let a shaky finger point towards the gleaming object. Gwen whipped her head behind her, mad at Ben for stopping her browsing of the magical objects. She looked at Ben's finger and followed the direction it was pointing at. She then spotted a… What was it called again? A Konohagakure no Sato hitai-ate? Yes, the forehead protector. She spotted two. One had the name, "Haru" engraved on it, and the other was "Gwen". The orange-haired girl gasped. "B-Ben! M-My name is on it!" She shouted. Ben nodded and looked at the one with the name "Haru".

'That name seems so familiar,' The Tennyson thought and sighed. Though Ben couldn't deny it, his mind kept telling him, 'It's just a conicidence. You do not know Haru. It's just a damn coincidence.' Ben sighed. He remembered what Gwen had said and smiled. A perfect gift for his damned-to-hell annoying cousin.

"So, you want it, Gwen?" Ben asked and looked towards his cousin. Gwen stared back in a confused way. "You're going to buy THAT for me? Hilarious," She said sarcastically. "It IS your birthday, Gwendolyn," Ben retorted and smirked. It was only during some occasions he used her full name. Gwen, finally giving in to his act, by the way he called her, nodded and watched her cousin pay for it.

"Ben," Gwen started and rubbed the back of her head anxiously. "Hmmm?" Came Ben's bored reply. "I'm buying you the other hitai-ate, a birthday gift. Call it, payback," She said and smiled. Ben, now feeling the confusion Gwen felt a while back, smiled back and watched as Gwen payed for the item and gripped it firmly in her right hand. Smiling, she quickly held out her hand to her cousin, knowing his hand was out to reach hers as well. She was glad Ben was kind today, and didn't have to work so hard to save the day. Ben and Gwen looked at each other and grinned.

Ben and Gwen exchanged their hitai-ates, tied them around their heads and grinned at each other. It had been so long since they had smiled at each other like that. It had been so long…

And before they knew it, they saw a bright white light and could only hear the blood-curdling scream of their grandpa.

"Ben! Gwen!"

And after that, only a veil of black darkness was seen in their eyes.

Author's Notes: Yay, I finished it! Anyway, if you like it or want me to be better, send comments and suggestions via review! It would really help me try to improve my writing! Again, I really accept reviews, no matter what, unless they're useless flames. Thank you again! Yes, I only put a little Naruto in this one because this is mostly Tennyson centric. And no, it's not a BenGwen pairing, you'll find out if you keep reading!