Mermaid Beauty

Mermaid Beauty is the femslash ship between Ariel and Belle from the Once Upon A Time and Disney fandoms.

Canon
Ariel meets Belle when Mr. Gold (A.K.A. Rumpelstiltskin) and Regina Mills (who Ariel knows as The Evil Queen) sends the mermaid to Storybrooke, with the task of finding her so they could find and retrieve a powerful item for them.

Fanon
While the ship is commonly focused on OUaT's version of the two, there are fans who use ship and its commonly used title with Disney's versions of them within the Disney Princess part of the Disney fandom, since the ABC television series has its own versions of the Disney characters and has a few traits from its series; and it being the live-action show that helped to trigger the ship or had helped to make it popular in both fandoms.

Fandom
FAN FICTION
 * Ariel/Belle tag on FanFiction.net
 * Ariel/Belle tag on FanFiction.net
 * Ariel/Belle tag on FanFiction.net

DEVIANTART

TUMBLR

Trivia

 * In the Disney film, Ralph Breaks the Internet, Belle and Ariel appear as online versions of themselves known as "netizens", the inhabitants of the digital made world that lies within the real-life internet. Where they are two of the fourteen Disney Princesses that are from the expo-like Disney website, Oh My Disney.
 * In the film, Belle is seen sitting close to Ariel when the princesses are in their new comfy, modern style clothes; and Ariel taps Belle on the shoulder as she talks about her new clothes with the other princesses while Belle smiles at Ariel as she speaks.
 * Both Belle and Ariel appear in the Disney Junior series show, Sofia the First, when the Amulet of Avalor summoned them to aid Sofia.
 * They are two of the common Disney Princess characters in the Kingdom Hearts series, as they both appear in the first game of the series saga and Kingdom Hearts II. Along with memory versions of the two in Kingdom Hearts: Chain of Memories.
 * As well as Ariel reappearing as a summon character in Kingdom Hearts III.
 * Are from two of the few Disney films to become Broadway shows.
 * They are two of the limit time characters in Disney Magic Kingdoms.