Hey Everyone! So this is my first fanfiction! I would often wonder how Kim and the rest of Cleo's family would react to her secret being revealed, and, have always wanted to see it in the show. Looking through stories, they're not many out there in relation to this topic (especially through Kim's thought process), so I thought I might add on! Hope you enjoy!

Cleo found herself in a state of vulnerability. It was supposed to be an unforgettable moment between her and her family, and it turned out to be, although not exactly for the right reasons.

She had just finished high school and, after the graduation party, wanted to spend the rest of her evening with Lewis, her father, Sam, and even if she loathed to admit it, Kim. After the events that had occurred the days beforehand at Mako Island, she was eager to spend some time with those she loved. Although her family was both surprised and confused by her sudden interest in doing something so ordinary when the biggest day of her life called for a momentous occasion, she replied rather cryptically that every small moment counts.

It was a bit last minute for the rest of Sertori family, as Don and Sam had to attend to late night shifts to make up for missing work for her daughter's graduation, and Kim had plans with friends to go to an 'End of Year School Party'.

"Dad, would it be at all possible… if we, rented a movie tonight?" Cleo had suggested to her father.

"And by 'we' you mean you and Bella and Rikki? Of course you can, Cleo. Having another slumber party again?"

"Well, actually, I was thinking we could watch something together, as a family… Just the five of us?"

"Five of us?"

"Yep! Just you, me, Kim, Sam…."

Just then, the door opened to reveal Lewis, who was holding a pillow and several small microwavable bags of popcorn. His smile let on both oblivion and innocence.

"And Lewis!" Cleo finished. "I wanted to invite him over before he leaves for the airport in the morning."

"Hi, Mr. Sertori!"

Don looked towards Lewis and then sympathetically towards his eldest daughter's brown eyes. "Cleo, I'm really sorry, but I'm afraid I'll have to have a raincheck on that. It's hard enough having to fish at night for income, when they don't really bite, but missing out altogether is missing out on a paycheck. I can't afford to miss my shift. And Sam…."

"She has to go in for her annual dine in with the rest of the Geography Institute, I understand." Cleo finished.

Just as Don packed up the rest of his supplies, Kim headed down the steps and advanced for the door. Don immediately heard the footsteps, and without having to glance at her, Don started.

"And just where do you think you are going, Kim?"

"To meet my friends. We were just going out to a party-"

"To a party, you say? I think you and I both remember fondly what happened last time you snuck out a party without my acknowledgement. And I will happily do it again."

Both Cleo and Kim stared at each other, remembering equally how embarrassing their father was to them, when Kim pretended to be sick in order to sneak out to a party, that had been staged in order for Cleo, Bella and Rikki to avoid the full moon. In the end, Mr. Sertori had found out and had decided to humiliate the sisters by singing karaoke the whole night through.

"But Dad-" Kim whined.

"No buts… You are not going…. Why don't you stay and watch a movie with Cleo and Lewis? Sam and I will be gone for a bit and at least I'll know where my daughter is while we're tending to work." Don decided.

Though she didn't admit it out loud, Cleo was a little disappointed with the notion that Kim was staying. At least if Sam and her dad were there with her, they would have defended Cleo or scolded Kim for the cocky remarks Cleo was certain she was going to make concerning either her or Lewis. However, she silently accepted for Lewis and her relationship's sake. She didn't want Kim to come between her and Lewis on their final day together for a while.

After a bit of disapproval, the feisty young teen finally resigned. "Fine…"

"Good."

He quickly kissed both girls on the check and waved as he went out the door. Immediately, Kim bolted to the back door with her bag, but Lewis cut her off.

"That wouldn't be such a good idea, if I were you." he stated.

Kim groaned and slumped down into a chair.

"Okay, but I'm choosing the movie we watch.."

Cleo, Lewis and Kim had a relatively good time during the movie. The young couple nuzzled noses oftentimes and would cuddle as soon as the emotional scenes came on. Kim checked her phone every few minutes or so, looking at what she was missing at the party, but truth be told, it felt nice to be with he sister. After all, she just graduated high school, and had big plans with her life afterwards, going to college and all. She felt closer to Cleo.

She didn't realize that she was going to become a whole lot closer to her sister than she had ever before.

It happened during the credits, Kim had decided to open up a new can of soda. It dropped on the ground, and Kim slowly picked it up.

Cleo started to clean up scattered popcorn around the area after their movie and had went to throw it away, passing Kim as she was just opening her drink by the counter.

And just as it exploded.

Cleo's nerves were at full alarm as soon as she felt the drink spill all over her head and torso. However, she was shocked in the moment, and couldn't feel her feet moving. She glanced at Lewis.

10...9….

Lewis immediately caught on…. She wouldn't have time to make it upstairs. She had to take her chances to the closest room in the house. Cleo raced there, trying to be careful not to slip over the rest of the drink, which had exploded to various areas on the kitchen floor.

"GO!"

8….7….6….

"Geez, it's just soda. It'll come right out. Where are you going anyway?" She caught a look over at Cleo.

5….4….3….

Cleo was incredibly close to the bathroom, but slipped just as she made it to the hallway. She landed face first on the floor and let out an oof.

2….

Kim heard Cleo's fall, and went over to try to help her up. Lewis, knowing how dangerously close she was to finding out what her sister actually was, acted on this.

"S-so Kim, why don't you tell me about these family photographs? They must be… really something…."

"You are SO weird, Lewis."

1….

Cleo felt the change. She tried to get up but found that her limbs and knees were nonexistent, and were instead replaced by a golden tail.

"I'm going to check on Cleo. Knowing her, she's probably made a huge fool of herself, as always."

Dang it, Cleo muttered. She frantically hoisted herself up so her back was on the floor, and quickly grabbed a towel near the sink and began drying herself off.

Lewis held Kim back. Cleo watched helplessly from behind the counter tops, rubbing the towel against her stubborn tail furiously. Any minute, she'd be seen by the one person who would use all means to get her in trouble, and there'd be no way she could explain this one.

"N-no! I just w-wanted to know if..."

"If what?" Kim was almost certain that Lewis was trying to keep her from something, but at the moment she didn't care. He could have his little charade.

"...you thought of me as a brother?" Lewis added.

"What? No, why would I? Look, just because you are Cleo's little pet who follows her around, does NOT mean that we are anything more than just strangers, a stranger who happens to be dating my sister."

Kim's insecurities were as out in the open as they could get. She walked away from the living room, towards the kitchen. Cleo couldn't help herself, she had to defend her boyfriend.

"Kim, enough with the insults! Lewis is my boyfriend, and whether you like him or not, I don't care."

Lewis could only help but stare at what was about to unfold, any second and she would notice that Cleo was still in the kitchen, tail and all.

Cleo's response only made Kim move faster, past the kitchen, towards the stairs. She was puzzled over the fact that judging by the sound of her voice, she hadn't gotten up yet.

Whatever, she thought to herself. Let her make a fool of herself. As soon as Dad gets home...

Kim quickly stomped up a few steps, before she realized that she had just past Cleo….

Ah, I love creating suspense. It's always so fun to formulate these kinds of stories. Let me know if you want me to continue it, I have a few ideas for one or two more chapters. Also, please review! It informs me whether or not I'm doing a good job storytelling wise, which can help me to grow from past experiences. Who knows, I may do shoutouts. I'll probably look back at this 8 years later and know it's garbage, lol.