A plot could be that Ursula is actually Ariel's long - lost relative. They discover this fact and have to navigate their new relationship. Ariel wants to bring Ursula into her family, but there are many obstacles as Ursula has a reputation. They work together to change how others in the underwater world see Ursula and build a new family bond.
I'm not sure specifically which non - smut Ariel - Ursula fan fictions are out there. But you could try searching on fan fiction platforms like Archive of Our Own. Just use the tags 'Ariel', 'Ursula' and exclude the tags related to adult content.
A third plot could be a story where Ursula loses her powers and has to rely on Ariel for help. At first, Ursula is reluctant, but as Ariel helps her, she starts to see things from Ariel's perspective. Along the way, they face challenges like other sea creatures who don't trust Ursula, and they have to work together to prove that Ursula has changed.
One idea could be that Ursula has a change of heart after Ariel saves her from a dangerous sea creature. Maybe Ariel gets lost in a part of the ocean Ursula controls, and Ursula decides to help her find her way back instead of taking advantage of the situation.
One interesting aspect is their power dynamic. Ariel has her beauty and her pure heart, while Ursula has her magic and her cunning. In non - lemon fanfics, their interactions can be full of tension as they try to outwit each other. For example, Ursula might try to use Ariel's naivete against her in a more complex plot than just the simple exchange in the original movie.
Another theme is the power dynamic. Since Ursula is a powerful sea witch and Ariel is a mermaid princess, their relationship in fan fictions often plays with this power difference. Sometimes Ariel gains power over Ursula, and other times it's the opposite.
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.
Sure. One great ariel ursula fan fiction is 'The Unlikely Alliance'. In it, Ariel and Ursula find themselves in a situation where they have to work together to save the underwater kingdom from a new, greater threat. It's an interesting take on their relationship.
A third plot could be a time - travel scenario. Ariel and Ursula are sent back in time to before Ursula made her evil choices. Ariel tries to prevent Ursula from going down the wrong path, and they end up changing the future of the underwater world for the better.
One idea could be that the female reader is a healer in Kassandra's village. Kassandra gets injured during a battle and the reader takes care of her. They start to form a bond as the reader teaches Kassandra about different herbs and their healing properties, and Kassandra shares her tales of adventure.
One plot idea could be that the male reader is a sailor who gets shipwrecked near Ariel's home. Ariel finds him and helps him survive. They then form a bond as she shows him the beauty of her underwater world and he tells her about the human world he comes from. Eventually, they work together to find a way for him to get back home safely while also maintaining their friendship.