Perhaps in the fanfiction, the Little Mermaid's belly has a mark. This mark is a sign of a prophecy. As she grows and experiences different things in the ocean, she gradually realizes the significance of this mark on her belly. It could be related to her destined role in saving the underwater world from a great threat.
A fanfiction plot could involve the Little Mermaid's belly being the source of a unique song. Normally, mermaids sing from their mouths, but she discovers that when she concentrates on her belly, a different, more powerful song emerges. This song has the ability to heal sick sea creatures and bring harmony to the ocean.
One idea could be that in a fanfiction, the Little Mermaid discovers a magical power within her belly. Maybe it glows when she is near a long - lost underwater treasure. And this power helps her to navigate through a dangerous part of the ocean that was previously unknown to her.
Maybe it could be about the little mermaid's new adventure in an undiscovered underwater kingdom. She might meet new friends or face new enemies there.
One possible plot could be that Athena, the little mermaid, discovers a hidden power within herself. Maybe she finds a magic pearl that gives her the ability to communicate with sea creatures in a more profound way. She uses this power to protect her underwater kingdom from an impending threat, like a group of over - fishing humans. Along the way, she falls in love with a kind - hearted human who also wants to save the ocean.
Well, perhaps Ursula comes back with a vengeance. She might try to take over the underwater kingdom again. Maybe she targets Ariel once more, but this time Ariel has new friends or powers to defend herself.
One possible plot could be that Ursula, resurrected with dark magic, seeks revenge on the Little Mermaid. She might try to take away Ariel's newfound happiness, like her relationship with Prince Eric. Maybe she creates new spells and illusions to deceive Ariel and those around her.
One possible plot could be that a Pokemon, like Vaporeon which has a mermaid - like appearance, gets transported to the world of The Little Mermaid. It befriends Ariel and helps her in her quest to understand the human world. Vaporeon could use its water - based powers to protect Ariel from Ursula's evil plans.
The plot might start with Serena finding a strange, enchanted shell on the beach. When she touches it, she is turned into a mermaid. In this new form, she realizes she can communicate with water - type Pokemon in a different way. She embarks on a journey to find the origin of the shell and the power that transformed her. Along the journey, she makes new friends among the mermaids and Pokemon, and together they face a powerful villain who wants to use the shell's power to take over both the sea and the land.
In a Naruto and the Little Mermaid crossover, Naruto could be transported to the underwater kingdom. There, he meets Ariel who is fascinated by his strange powers. Together, they could team up to find a way to stop an evil force that is threatening both the surface world (where Naruto is from) and the underwater world. Naruto's ability to make clones could be used in interesting ways underwater, like creating distractions for the bad guys.
Well, in this fanfiction, Ursula could return with a new plan. She might form an alliance with some other sea villains this time. For example, she could team up with a group of merman pirates who have been causing trouble in the deep sea. And then, she uses their knowledge of the sea's hidden passages to her advantage, planning to take over Atlantica once again. Ariel, of course, has to gather her friends and find new ways to defeat Ursula and her new allies.
The Little Mermaid's belly could be the key to a mystery. For example, there could be an ancient riddle in the ocean that says only a mermaid with a special mark on her belly can unlock a certain power. The Little Mermaid discovers she has this mark. So she embarks on a journey to figure out what this power is and how to use it to benefit the ocean and her fellow sea creatures. It could involve her meeting other mermaids or sea wizards who can help her understand the mystery.
In the fanfiction, a romantic plot could involve Ariel getting the ability to walk on land permanently. Eric then takes her on a tour of his kingdom, showing her all the beautiful places. At sunset, he takes her to a cliff overlooking the ocean and proposes to her, making it a very romantic scene.