Author Note: 3/14/14

I revised this slightly. I changed Lewis' tail color to blue instead of gold since apparently Mermen have blue tails. :)

I had this idea in my head since I started watching H2O. This is based around season 1 and early season 2 before Charlotte. Let me know what you think and if I should continue.

Chapter 1:

"Cleo! I don't think this is a good idea! Let go, please." Lewis begged a moonstruck Cleo. She was trying to beckon him like a siren into the moon pool. He was resisting the best he could but he knew if she began singing it would be the end of him. Cleo had him by the arm.

"Come on, Lewis, please? It'll be fun. I promise," Cleo said sweetly with doe like eyes.

Lewis gulped and looked up at the full moon and then at the moon pool. If he fell in he'd become a merman.

"Don't you love me?" Cleo's eyes pooled with tears.

Oh no… They had never expressed their feelings for each other, but they knew they more than liked each other. Cleo had kissed him the last time she was moonstruck and hadn't known it but Lewis remembered clearly.

Lewis against his better judgment walked right to the pool edge, "Y-yes I do Cleo, but-."

Cleo smiled and started singing softly.

Lewis didn't have time to plug his ears. He found himself leaning over the edge of pool where he kneeled toward Cleo.

She took his hands in hers before leaning towards him and capturing his lips.

He couldn't control his actions as he did nothing but close his eyes. And before he knew what was really happening Cleo pulled him into the pool and he went under….

"Lewis? Lewis!" Cleo shook him hard. Lewis?!" her voice shook in hysterics.

Lewis opened his eyes slowly. He was on the bank by the moon pool. It was daylight and Cleo was hovering over him in worry.

"What am I doing here?" he asked groggily, trying to come to terms what was going on.

"You followed me last night I think. I snapped out of my 'daze' and realized you were hanging limply on the edge of the pool," Cleo gently swiped an errant strand of blonde hair from his face.

Lewis shivered from the contact. Memories were finally coming back to him. Cleo pulled him into the moon pool during a full moon…that meant…uh oh.

"Um, Cleo?" Lewis said hesitantly.

"What is it?" Cleo stared at him clueless.

"I think you turned me last night," he said slowly.

Cleo's eyes widened in shock? "I—what? I don't remember this. How?"

"You pulled me in with you. I don't remember anything after that, but it was a full moon."

Cleo's face turned pale. "Are you sure?"

Lewis sighed and stuck his foot in the moon pool slowly. Cleo began to count to ten.

Lewis's eyes grew big as a blue tail appeared.

Cleo gasped in surprise and began stammering, "I'm so sorry I did this to you."

Lewis gave her a small smile, "It's okay. You weren't yourself last night."

"Did I do anything else last night besides turning you into a merman?" Cleo looked as if she were afraid to find out.

Lewis felt a blush creeping up his neck. "You asked if I loved you."

Cleo blanched before standing up quickly and diving into the moon pool.

Lewis stared at the foreign blue tail that had replaced his legs. He needed to go after Cleo but he wasn't sure how this merman tail worked.

He had to do something. He had to find her.

Lewis sighed and took a deep breath then dived into the moon pool.

Review! What do you think his power should be?

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