One possible plot could be that the Goddess Lemon character enters the Harry Potter universe. She might have special powers that she uses to help Harry and his friends in their fight against Voldemort. For example, she could use her unique magic to break through some of the dark spells that Voldemort has cast.
Well, in some 'Harry Potter' fanfiction, the idea of a 'goddess' character can add a new dimension. It might bring in unique magical abilities or a different kind of power dynamic. The 'lemon' aspect, if not referring to something inappropriate, could imply a fresh or zesty take on the story, like adding a new flavor to the familiar 'Harry Potter' world.
It could still be Voldemort. Since he is the main villain in the original Harry Potter series, in this fanfiction he would see the Goddess Lemon as a threat to his plans of taking over the wizarding world. He might try to eliminate her before she can fully use her powers to help Harry and the Order of the Phoenix.
I'm not sure of specific 'harry potter goddess lemon fanfiction' titles off - hand. But you can start by looking on popular fanfiction websites like Fanfiction.net or Archive of Our Own. Use the search terms 'harry potter goddess lemon' and browse through the results to find ones that seem interesting based on the summary and reviews.
The goddess could also be an original creation for the fanfiction. A being with a unique set of powers like the ability to control time and space. This goddess could be betrothed to Harry to stop an impending doom that threatens both the wizarding and Muggle worlds. Her powers would be so great that she needs Harry's connection to the wizarding world to fully utilize them and save the day.
It could be Athena. Athena is known for her wisdom in Greek mythology. She could pass on her wisdom to Harry, making him not just a powerful wizard but also a very wise one. He could use this wisdom to solve problems in the wizarding world in a more strategic way.
The goddess could be an ancient Celtic deity. In the fanfiction, the author might choose a Celtic goddess because of the rich magical lore associated with them. For example, Morgan le Fay from Arthurian legend could be reimagined as a goddess in this context, and she could adopt Harry due to her interest in powerful magic users.
She could be an ancient Celtic goddess, like Brigid. Brigid is associated with magic, healing, and smithcraft in Celtic mythology. In the fanfiction, she might see Harry's potential and decide to train him in her unique magical arts.
One possible goddess could be Athena. In the context of the fanfiction, she could bring her wisdom and strategic skills to help Harry Potter. Another could be Aphrodite, adding an element of love and charm to the story, perhaps using her powers to influence the emotions of characters for good or bad depending on the plot.