Pacifica Northwest celebrates her sixteenth birthday in the middle of the sea, but when a lighting burns her ship she depends of a certain merman to save her. Basically, did you saw the little mermaid? That. But Dipcifica. You never get enough AU's.

Gravity Falls belongs to Disney and it's created by Alex Hirsch. The Little Mermaid and all its songs belong to Disney too.

So yeah, I got this idea from aquaburst07 from tumblr and I said why not. The Little Mermaid is one of my favorite Disney movies, GF is my favorite cartoon of nowadays and Dipcifica is my current OTP so I'm really putting my heart on this, so enjoy!

Prologue.

From the Northwest's royal ship princess Pacifica Northwest looked amazed how the dolphins jumped up and down the surface of the sea.

Her sixteenth birthday party was, as every year, according to the tradition, being celebrated at the open sea. She didn't understand how her deceased parents could think this was fancy, especially in a foggy day like that.

She did like the sea, anyway, unlike some of the guests that were about to throw up, she loved the salty sea air and the wind blowing in her face.

"It's a perfect day to be in the sea!" she smiled proud of how well the party was going.

"Yes… very good, your majesty" said Andrew, her main butler, face green.

"King Stanford seems in a good mood, THE SHIP CAN SAIL" agreed Captain Dan, one of the few low class people aboard. And he was only there because he was the captain.

"King Stanford?" she echoed raising an eyebrow to the redhead.

"Ruler of the "mer" people, ruler of the seas!" Dan continued.

"Don't listen to this commoner, your majesty" said a random guest. "that is nonsense, there are nothing like mermaids or mermen."

"DIPPER! MABEL!" a strong voice echoed for miles underwater. "Where are those kids? SOOS!"

"I'm here, your highness." A funny looking crab swam to approach the enraged merman.

"Where are the royal kiddos?! They were going to watch the octopus fight with me! How dare they leave the king of the entire ocean like this?!"

"Well maybe they we—"

"Go find them! And if you hurry, you can join us, or whatever…"

"Sure thing, mister king!" he said happily swimming to start looking for the twins.

Should I include the songs? Hm… Well, please leave your opinion! Next update is directly proportional to the reviews or follows. Coming Next: Part of That World.

…Probably.