A/N:Okay! First off, this is the "special" chapter everyone has waited for. It's not a sex chapter so don't think that, just an adorable on full of fluffiness! 3 or will something totally different occur? I guess you'll just have to read and find out. Also, don't think I'm copying Twilight in some of these parts lol, it just happened.

Disclaimer:I own nothing of Adventure Time but I wish I did. I'd get to meet the creator of the genderbents. *sigh* If only...

Chapter 9 (final)

Cake continued to brush through my lengthened blond hair.

I watched as Cake began to braid my hair in a large mirror.

"Aren't you excited?" Cake asked blissfully.

I remained silent and Cake continued on.

"I remembered when I turned 18, Mom and Dad threw a huge party and I was on my own for a bit. You remember that?" She asked.

"I do." I said before taking a deep breath, "I'm just very nervous that's all. I have to wear a dress and put make-up on and-"

"Look like a girl?" Cake interrupted.

I chuckled a bit, "Yeah, exactly."

Cake finished my long braid and placed a bunny hairpin to hold my bangs out of my face.

"Ready to put on the dress?" Cake asked opening her closet.

I stripped and put on the dress Cake had handed me, the cottony blue fabric brushed my skin. Cake zipped the back of the dress up and added a midnight blue ribbon around my waist, tieing it into a beautiful ribbon. I slipped on my light blue flats and was now completely dressed and ready.

"Where's my sword?" I asked rummaging through our messy room.

Cake put her hands on her sides, "You are no carrying that huge thing on during your party!" She ordered.

I rolled my eyes, "remember what happen last time when I didn't have my sword going to one of Gumball's Balls?" I asked referring to the Ice Queen and her evil tactics.

Cake shook her head, still refusing.

Sighing, I gave up and followed her out to the door.

"First we gotta stop and pick up my babies then we can do whatever you want birthday girl," she clarified for me/

I nodded and held my dress down as Cake guided me to the castle on her back.

When we arrived, I noticed the pint-sized black flying kittens and light brown spotted outstretched unicorns. There are five of them in total.

I decided to give them a little time to talk and left to find Gumball to see how the party was going.

"Happy Birthday Fionna," Gumball said smiling.

I smiled, "thanks."

Gumball pulled a light orange box wrapped neatly out of his pant pocket and handed it to me, "an early present." He explained.

My cheeks burned a little and I began unwrapping to find a dark blue velvet box. Opening the box, the content inside revealed a necklace with a blue crystalized rose as the pendant.

Gumball grabbed the necklace and draped it around my neck, he smiled at me and hugged me for a moment.

I notice Fire Prince standing off in a corner alone gazing my way, letting go of GB, I thanked him and walked over to the abandoned prince.

"Hey," I said softly.

His flame burned brighter, "Hi, Happy Birthday Fionna." He said nervous.

See, after that incident with Marshall at the bar years ago, we didn't talk that much.

"How have you been?" I asked smiling.

He returned the gesture, "I'm the ruler over the Fire Kingdom now, Mom went into retirement."

I nodded, "that's fantastic! I bet you're an amazing ruler."

He rubbed the back of his neck, "I'm still waiting for someone to rule with me..." He mumbled/

"Wha-"

"Fionna!" A voice called interrupting me.

I turned to see Marshall floating inside, closing his umbrella that had protected him from the sunlight's rays. A smile beamed on my face as he made his way to me.

Marshall looked at me sweetly and grabbed my hands, "you look beautiful Fi, Happy B-Day."

I looked at Fire Prince, "will you excuse us?" I asked politely.

"Go ahead." He said before leaving us and heading to the snack table.

I looked at Marshall but before I can say anything, he grabbed my chin and gave me a passionate kiss. It took me a second to realize what was around me when we separated.

"I have to go, I have to sing." He laughed sadly, "it's your special day and I have to sing for others."

I hugged him, "it's fine."

He smiled, "I'll sing the first song for you. I think everyone knows it so it'll be fun."

I waved smiling faintly as he left to meet up with his ghost band.

Touching the rose pendant gingerly, I smiled and danced with the candy people.

Soon Marshall was on stage holding his precious axe bass. "I want to dedicate this song to the birthday girl. Happy Birthday Fi."

The crowd cheered and my cheeks burned red.

The first note hit and I already knew what this song was.

((Its Everybody Talks ;D Thanks Critics Unite!))

Marshall sang as he strummed his guitar.

This was the song that brought us together that night, the reason why we're a couple.

Marshall winks at me and I laugh, dancing with LSP.

The party goes on and next think I know, a large birthday cake was carried out and Marshall began singing happy birthday to me. Everyone followed right after and beautiful melodies filled the room as everyone sang.

"Make a wish," Marshall whispered in my ear.

'I wish nothing will ruin this night.' I blew out the '18' candles and everyone clapped.

I received my piece first and Marshall took a bite, I looked at him confused. "I thought you only like red things?" I asked looking at the white cake.

"Well I also love sweet things," he answered kissing my cheek.

I blushed, "yeah..."

Marshall's expression turned to serious, "Fionna, I have to ask you something... we've"

"Fionna!" Cake called, "come open up your present's!" She yelled, oblivious to the fact Marshall was talking to me. She kept yelling my name until I finally got fed up and went to open my gifts.

Unwrapping them all quickly, I notice non are from Marshall, looking up, I notice a bit sad look on his face.

After thanking everyone for their marvelous gifts, I made my way over to Marshall and I looked at him confused. "Now what were you saying?"

"Fionna, we've been together for a long time and your happy with me right?" He asked a bit nervous.

"Yes..." I said slowly, still not understanding where he was getting at.

"Fionna!" Cake called. "Something is wrong! It's snowing outside when it's only summer!"

I ignored her and watched as Marshall got down on one knee. My breath got hitched when he pulled out a ring. "Fi, will you marry me and make me the happiest vampire in the whole world?" He asked smiling.

My eyes widened and I couldn't make out any words. To tell the truth, I bet I looked like an idiot mouthing stuff without any noise coming out.

"Fionna!" Cake called once again, her voice full of worry.

Marshall smiled up at me and took my hands.

"Marshall..." I finally could speak. "I...I-"

A loud shrieking laugher filled the air and everyone gasped. I quickly turned around to see an ice spear hurling through the air towards me and before I could dodge the object, it cut through my arm and blood trickled out.

My eyes scanned the area looking for Cake, but she was nowhere to be found. My eyes moved to Ice Queen's and a frown came upon my face.

"Why are you here Ice Queen!" I yelled, grabbing my arm in pain.

Her wicked smile sent chills up my spine, "I came to wish a happy birthday to the birthday girl!"

More spears came my way, I quickly pushed Marshall out of the way and dodged the sharp weapons.

Scanning the area once more, I had to find some type of weapon to attack this stupid woman with.

"Here's your present dear!" Ice Queen shrieked throwing block of ice at me. She had given herself an ice type of amour in the time I dodged them.

I gasped when she began zapping random people with her ice lightning bolts. One of them hit Marshall...

I found myself lunging towards the ice armour and beating my fist into the ice. Pain rushed throughout my hands up my arms but I ignored it. "Get out Ice Queen and fight me like a woman!" I screamed, tears running down my face.

She ruined my birthday party, she hurt the ones I love... she hurt Marshall...

Ice Queen continued laughing evilly as I continued inflicting pain on myself.

"Fionna!" A voice yelled.

I stopped and turned my head, "what!" I hissed.

It was FP, he was glaring at Ice Queen.

"Move." He ordered, anger filled his expression.

"No!" I yelled continuing to hit my fist against the freezing solid.

"Move."

I looked back and the look he had in his eyes told me it'd be better to listen. I slid off and backed away, before I could acknowledge what was occurring, the room light up. Turning around, all I saw was a huge ball of flame over Ice Queen.

FP flinched in pain as the water from the ice touched his flame.

I ran over to him as his fire-ball dimmed down.

"Why did you help me?" I asked confused.

Fire Prince ran his hand through his fiery mohawk. "Because you're my princess."

You blush and hug him, the burning sensation wasn't as bad since the water infliction.

"Go find your man," FP said smiling.

"Fi! Watch out!" Marshall yelled.

I turned and Ice Queen shot an Ice bolt towards me and it hit my right hand. I frowned and ran straight up to her and wacked her with my ice hand. Her crown flew off and she hit the grown rubbing her head.

"W-Where is my crown?" She asked worried.

Cake hurried and ran up to me, "I'm so sorry for not helping you Fionna! My babies... I had to protect them..."

I nodded, "it's fine. I kicked her butt."

"Your hands... why are they so damaged?" She asked worried.

I laughed and noticed FP leaving.

"Fire Prince! Where are you going?" I asked.

He turned an waved, "I havent seen my mother in a while. Happy Birthday Fionna, sorry to ditch." He looked over at Marshall who was walking over to me. "You better not hurt her bro, you'll be hearing from me."

He then left and Marshall gazed at me and hugged me tightly.

"Are you okay?" I asked frantic.

He rubbed the back of his neck, "I'm fine...But Fionna, where we were before Ice Queen. The question-"

A smile came on my face and I hugged him tightly, "yes! Definitely yes!"

Marshall sighed, "thank god."

Everyone cheered and after the mess was cleaned up, the party continued.

Marshall kissed me softly, "I love you Fi."

I hugged him back, "I love you too Marshall Lee."

"The End."

Ice King looked at Finn and Jake, "So what did you guy's think of my new fanfiction?"

Finn looked at him confused, "I thought Fionna was in love with you..."

Jake rolled his eyes.

"Nothing wrong with a Fiolee shipping though, they're so cute together!" Ice King said beginning to get excited.

"Whatever," Jake mumbled.

A/N: So what did you think about the special chapter? I made it longer so you'd enjoy it! I tried my best to add alot of detail and bigger words so I hope you enjoyed it and thanks so much for reading this. Please review and thanks once again for helping me reaching my goal of 100 reviews.