Annabeth POV:

"HAPPY BIRTHDAY ANNABETH!"
I woke up to the sound of my friends dragging me out of bed. Gods, I had forgotten my birthday due to the stress of passing my final architecture exams... Gods, I am stupid. Then, someone came and kissed me.
At first, I panicked, but when I tasted the familiar sea and blue food, I knew it was no one other than my seaweed brain.
He pulled back and whispered in my ear "Happy birthday, wise girl" and he suddenly grabbed my hands and someone grabbed my legs and boom!
They took me out of bed and started swinging me. Percy was holding me by my hands while Grover was holding my legs.
"PERCY! GROVER! LEAVE ME OR I SWEAR TO ALL FREAKING GODS THAT I WILL KILL YOU!" I shouted even if I was enjoying the swinging and surprise.
Percy chuckled and said "NEVER!"
I smiled but also groaned in frustration.
"I am disappointed in you, Annie! First we prepare this surprise for you and you repay us by death threats and no thank yous and wows. I am so dam pissed at you Annie" an annoying voice spoke up.
"Leo Freaking Valdez!" I say "You better watch what you say, or you're next with the killing".
Everyone laughed at this, even Nico. Along with Percy, Grover and Leo, there was Thalia, Pipes, Jason, Frank, Hazel, Nico and wait-
"Luke" I say, looking at the blonde, blue eyed boy "Luke, where's your scar?" I say, getting a bit emotional. Me and Luke had a complicated history- but he died, didn't he?
"Jeez, Annabeth. That's my glow in the dark boyfriend" Nico spoke, poking the blondie in the ribs.
"Oh" Realisation hit me like the brick hit Jason. "I am- I am sorry, Will"
He gives me and reassuring smile and was going to say something but Percy and Grover swung me quickly and threw me when I had a lot of momentum. I hit the ground with a loud thud and I groaned, sitting cross legged on the floor
"Really, guys?" I say "That hurt, by the way"
"That's just the first one. And we all are here to give you...What's your age now?" Piper says.
"Ummm" I spent some time calculating my age. Last year, me and Percy celebrated our 10th Anniversary, and I was twelve on our first anniversary, so, 12+10=22.
"Twenty two" I say, proudly. What? I calculated my unknown age!
"So Twenty two into like twelve or something birthday bombs!" Jason exclaimed.
"Uhh, No way!" I say as I run for the door. Ignoring the curses and complains from my friends, I sprint to the beach, hoping that only Percy will be able to find me.
"Annabeth!" I was tackled in a hug.
And Percy did find me. Good job Perce, have a blue cookie!
"Let's go back" he says.
"No way in Hades I AM GOING BACK!" I scream.
"Hey" he kisses the top of head "They agreed they will not hit you."
"Fine" I agree as he hit he on the back.
"Perce!" I scream.
"But I didnt say that I will not hit you" he smirks.
That explains his Seaweed brainess! And my wise girlness...
"So we go back to celebrate your birthday?" He asks calmly.
Wait... My birthday! So, a gift....
"My-" I tried to remind him of the gift but he cut me off
"You are in your night suit, wait" and he steps away from me and does something- Something beautiful, amazing, something that you can't even buy with a million dollars!
He controls the water and orders it to form a layer around me. Slowly and steadily, the water formed a dress, a beautiful dress, a dress that I wanted to wear since I was little.  But a new change is that he made it with water. The dress which Cinderella was wearing, but it was made it water. Gods, he is a seaweed brain!
I grinned ear to ear as he finished working on my water dress.

(The design is similar but made out of water-duh)

"You were saying?" He asked as was my reaction to his assumed gift.
"Its beautiful! Perce" I put my hands around his neck "Its amazing, just like you" and I kiss him.
"Let's go now" he says as we pull back for air.
"Wait" I say "Why don't you match me?"
"Good idea, babe" he says and the water engulfs him and out comes a very handsome Seaweed brain wearing a tux made out of water. Yeah, we are rocking the look!
"You are looking handsome" I say "let's go now" and we get back to Cabin 6. I had my own room as I was the counselor so apparently, the party was in my room.
Many other people from camp have joined, I noticed as we entered the room.
Everyone's jaw dropped as they saw us enter, hand in hand, wearing similar water clothes and grinning ear to ear.
"Get your jaws of the ground people, or mosquitoes will enter your mouth" Percy says, no wait, Persasasy says.
Then everyone started commenting on my  beautiful dress and Percy's sassy water tux, as he called it.
And when anyone tried to give me birthday bombs, the water of the dress would become fists and punch the person square in the face and drench them. Then it would just settle back in its place, making me laugh.
"I love you, Wise Girl"
"I Love you too, and forever Seaweed brain"