Another plot could be that there's a curse on Prince Eric that only Ariel's mermaid magic can break. They have to search for different elements from both the land and the sea to perform the spell. It would be a story full of adventure as they encounter various obstacles and learn more about each other's worlds in the process.
One idea could be that Ariel and Prince Eric go on a journey to discover a new underwater kingdom together. This would involve Ariel showing Eric all the unique and magical creatures she knows, and Eric using his human knowledge to help them navigate any challenges they face along the way.
A plot could revolve around Prince Eric and Ariel having a misunderstanding. Ariel misinterprets something Eric does and runs away to the ocean again. Eric then has to go on a journey to find her and prove his love. He faces many challenges in the underwater world, which he's not used to, but his love for Ariel drives him forward.
Well, a plot could revolve around Prince Eric being curious about the male Ariel's voice. In the original story, Ariel's voice was a big deal, and here it could be too. Maybe Male Ariel has a special song that only Eric can hear. Also, they could go on adventures together, exploring uncharted parts of the ocean. This would bring them closer as they face various sea creatures and challenges. And perhaps there's a conflict where Eric has to choose between his duty to his kingdom on land and his love for Male Ariel. This would create a lot of drama and tension in the fanfiction.
One idea could be that Ariel and Eric are taking their baby on a magical underwater tour to introduce it to all of Ariel's friends in Atlantica. Another could be the baby showing signs of having both human and mermaid/merman powers and Ariel and Eric trying to figure out how to help the baby control them. Maybe there's a plot where an old enemy of Ariel's resurfaces and they have to protect their baby from this threat.
One idea could be that Male Ariel, with his merman charm, saves Eric from a different sea - based danger than in the original story. For example, a sea monster created by an evil sea witch. Another plot could be Male Ariel and Eric going on an adventure to discover a hidden underwater kingdom that was lost in time. And perhaps they have to overcome some cultural differences between the human and merman worlds to be together.
One plot idea could be that Ariel has some unique challenges during her pregnancy because she is a mermaid in a human world. For example, she might struggle with the differences in medical care. Another idea could be that Eric is overly protective and Ariel has to balance his protectiveness with her own desire for independence. They could also face some opposition from the kingdom's council who are not sure about having a half - human, half - mermaid heir.
One idea could be that Ariel and Eric go on a magical underwater adventure together. They discover a new part of the ocean that has been hidden for centuries, filled with strange and beautiful creatures. Another could be that they face a threat to their kingdoms and have to work together to overcome it, using both their land and sea knowledge.
Another idea is that Eric and Ariel start a school where mermaids and humans can learn about each other's cultures. It could be full of comical misunderstandings at first, but as they work through these issues, their bond as a couple strengthens. There could be sub - plots about students from both sides falling in love as well, mirroring Eric and Ariel's relationship.
Perhaps in the fanfiction, Ariel and Eric get married and have to deal with the cultural differences between the underwater world and the human world. For example, Ariel has to learn the proper etiquette in Eric's kingdom while Eric tries to understand the unique traditions of Ariel's mermaid family.
In the fanfiction, their pregnancy could be a time of great change for the kingdom. The people might be excited and also a bit apprehensive. There could be a lot of celebration preparations. Ariel and Prince Eric could go on little adventures together during her pregnancy, like visiting special places in the kingdom that they want to share with their future child. They might also face some challenges, like dealing with any jealous or envious characters in the kingdom who don't like all the attention the royal couple is getting because of the pregnancy.
Perhaps in a fan fiction, a powerful sorcerer kidnaps both Prince Eric and Aladdin. Trapped together, they have to use their unique skills to escape. Aladdin uses his street - smart wits and knowledge of magic items like the lamp, while Prince Eric uses his seafaring skills and knowledge of his kingdom's defenses. They become friends during this ordeal and learn from each other.