Hey people. I know this is my FIRST PERCY JACKSON FANFIC! Wooo! Well, about me a little. I LOVE Twilight (You probably guessed hehe), Percy Jackson, Lemonade Mouth, and others for movies. I have read the Twilight series a lot, as with the PJO series, and am currently reading the second series. And I have written 8 or 9 stories about Lemonade Mouth, one being a crossover with Victorious. Well, here's the summery for my story.

What if Percy had a sister? No no, not a sister from Sally, but from Poseidon... And he knew her all his life! Lyndsey Lee Marie Salvatore. Peppy, smart, beautiful, funny, angry at times, and basically everything... And a Half-Blood! How will Percy and Lyndsey handle being best friends and siblings?

That's the summery. I will talk to most everybody, unless their meanies. Then I won't talk to them, but everyone I've talked to on here is really nice. :) Well, here's the story.

Lyndsey's POV

I was walking home with my best friend, Percy Jackson. We hung out together for many reason's, one being we're both dyslexic, and ADHD. Another reason being that I live with them. My mother and step-dad died when I was six. Horrible car crash. They were both really good to me. Man I miss them. Another reason being is because I need someone to rant to, and he does too. So yeah, we've been best friends ever since we were five years old. But lately, he's been kinda...weird. Like, always looking behind him, and he always carried that stupid pen. Every year, and he doesn't even write with it. Weird huh?

Well, I was going to confront him about that... again.

"Percy, what is up with you? You used to never look behind you, you said doing that is like looking looking at your past, now that's all you ever do! And why don't you ever write with that pen? Or let me use it when I need something to draw with?" I asked, he just said the same annoying thing he always does.

"Reason's that I can't tell you." He said.

"You always say that, Percy! I tell you literary EVERYTHING! And you used to too. Now spill, or I will tickle you." I said, I knew his weaknesses.

"Don't even think about it, Lynds." He said.

"Gosh, Perc, you used to be so much fun to hang around!" I said.

"I still am!" He defended.

"Not really! Every summer we used to go camping and swimming every year, and now we never do that! All because of that stupid summer camp! Now I just sit around doing nothing because, I don't know, my best friend is gone!" I yelled.

"Lynds, if you think I have fun at summer camp, go ahead, but your wrong." He said. And now you see why both of us having temper issues can have a big impact on our friendship.

So we were now walking in silence, I was listening to my IPod playing Angry Birds when I heard this weird screeching sound, I looked up and saw this weird huge bird. And it was angry. How ironic. It swooped down screaming at the top of it's lung's "DIE!" Percy grabbed my arm and we started running.

"What is that thing!" I screamed.

"Uhh I dunno." He lied. Perseus Dorian Jackson! You are an awful liar! (A/N Dorian means 'Of the Sea' in Greek. Amazing right?)

"Percy, don't you lie to me! Your an awful liar." I yelled.

"Fine! That's a kindly one, like, from Greek mythology. It's all real and you can see that?" He looked shocked, and then he looked like he realized something. "Come on! To Long Island we go!" He yelled, we started running toward long island, soon we saw this big gate thing with Greek letters on it. The strange thing, though, is I could read it.

"What is that?" I asked. I can read something! Wow!

"Camp Half-Blood. It's where I go for the summer. I've been telling the truth, well half truth." He ran past the gate. "Only Half-Bloods can pass. Try to pass." I walked up to him. He smiled. "Hey, sweet, your a Half-Blood!"

Percy's POV

Sweeeet. "What the heck is a Half-Blood?" Lynds asked. I just laughed.

"Remember Mr. Brunner? How he would teach us about the Greek gods having kids? We are their kids. You, me, everyone here are half-bloods. Half human, half god. We all have some sort of power." I said.

"Like what! So who's your dad or mom or whatever!" She looked pretty freaked, did I look like that?

"My DAD is Poseidon. I'm the first child of Poseidon in centuries." I smiled.

"Who's mine?" She asked. I shrugged.

"Dunno. You'll have to be claimed. Let's go see what your good with, but first, we will have to check you in with Mr. D and Chiron." I said.

"Who the fudge pop are they?" She asked.

"Chiron? Mr. Brunner. Mr. D? The god of wine and parties." I said.

"Oh."

-Later-

We were at the bow and arrow range, I got her bow ready, she almost shot a satyr in the head.

"Sorry!" She yelled.

"Not an Apollo child." I mark off Apollo. "Next is Athena." I smiled. I got to see Annabeth. Yay!

"Joy. Math." We went to the cabin, Annabeth wasn't there. I frowned.

After she got most everything wrong, we walked out.

"Nope. Aphrodite." I looked at her. "Nah, not pretty enough." She hit me. "Just kidding! But I should warn you... The daughter's of Aphrodite are stuck up, well some of them, and so that's why I don't think your her daughter." She gave me a side nod, but we tested anyway.

After we were running away because Lyndsey got mad at this girl Callie, and kinda broke her her make-up kit.

"Nada." I marked that off. "I doubt your Ares but it's worth a shot."

After this guy, Miles, almost cut her arm off a few times, I decided she wasn't an Ares daughter. Thankfully! But she was pretty good with a sword.

"I don't like this." She said, rubbing her arm.

"Yeah, but on the bright side, your not a child of Ares!" I smiled. She gave me the drop dead or I will kill you look. "Alright. Next is Hephaestus." We walked to the Armory.

After almost catching the place on fire, herself on fire, me on fire, and blowing the place up, we decided she wasn't a Hephaestus kid.

"Nooooooo." I marked off that one. She coughed up smoke.

"I REALLY hate this, Percy!"

We went through ever god and goddess we could think of, not having any luck. We went to my cabin and sat on the dock.

"I'm not good at anything." She said, looking down.

"Well, your good with a sword, not to sound stuck up, but I kinda creamed Ares." I popped my collar, she laughed.

"Thanks." I got an idea.

"Let's go down to the stables. I can show you my Pegasus, Blackjack. I saved him you know?" I said.

Lyndsey's POV

"Pegasus? Like the ones in that show, Hercules that we used to watch when we were younger?" I asked.

"Yup. Let's go!" He grabbed my arm and dragged me to this stable thing. There I saw the most beautiful horse's I've ever seen! One was a beautiful midnight black color.

'Who do I need to trample, boss?' I jumped.

"What the fudge pop was that?" I said, grabbing onto Percy.

"Just Blackjack and nobody. I'd like you to meet- wait did you hear that?" Percy turned to me. I nodded.

"If by 'that' you mean the thing that I guess said 'who do I need to trample, boss' then yeah." I said. Percy smiled.

"Hey sis." He pulled me into a hug. I pushed him away from me.

"What!"

"Your a daughter of Poseidon. Only children of Poseidon can talk to horses. Because Poseidon created them." He smiled. Ay ay ay. What did I get myself into?

Lyndsey is Percy's sister! Wow! Again, I will talk to most people, just feel free to PM me. I might not answer right away, but I will answer sometime. Here's what Lyndsey looks like. She has pitch black hair down to her lower back, usually up in a ponytail or pigtails, she has the bluest eyes, like looking at the sea when the sun hits it just right, and they sparkle like the ocean on the perfect day, no waves or anything. She is pale with a few freckles, but not much. She has scars on her wrist from cutting herself from being in an abusive home after her parents died, and after five years there, she finally managed to find a way to move in with Sally, Gabe and Percy, soon after Sally was appointed her legal guardian. The scars are almost gone, but she covers them with make-up or wears long-sleeved shirts. That's Lyndsey basically. Feel free to check out my page, I don't care. And also feel free to review and give me your opinions. Later gators! :)