One idea could be that Alex Russo uses her magic to help Harry Potter in a wizarding tournament. Maybe she disguises herself as a Hogwarts student and uses her unique magic skills, like her ability to freeze time briefly, to give Harry an edge in a difficult task.
Alex Russo and Severus Snape would be a very dynamic duo. Snape is so strict and brooding, and Alex is so carefree. Alex might constantly try to break through Snape's cold exterior, and Snape would be exasperated by her unorthodox ways of doing magic. Their exchanges would be full of tension and, eventually, maybe some understanding as they realize they both have their own reasons for being the way they are.
One common theme is family. Since they are siblings, many fanfics explore their relationship, like how they support or annoy each other. Another theme is magic. Their magical abilities are often central to the plot, such as using magic to solve problems or get into trouble.
There's also 'Alex and Justin: A New Bond'. This fanfic focuses on a time - travel scenario where Alex and Justin end up in a different era of the wizarding world. They have to rely on their sibling bond and magic skills to find their way back. It has a great blend of adventure and family dynamics.
The main characters are clearly Alex and Justin Russo. Alex is known for her impulsive and fun - loving nature in the original show, and Justin is the more studious and rule - following sibling. In this fanfiction, their personalities would likely be put to the test with the unexpected situation of a pregnancy.
One possible plot could be that Alex and Justin accidentally cast a spell that results in one of them becoming pregnant in a magical way. Maybe they were trying to solve a problem for a friend but something went wrong with the spellcasting.
You can try fanfiction websites like FanFiction.net. It has a large collection of various fanfictions, including those about Alex and Justin Russo. Another option is Archive of Our Own (AO3), which also has a great selection of fan - created works related to different shows and characters.
One great 'Alex and Justin Russo' fanfiction could be 'The Magical Bond'. It focuses on their relationship growth while dealing with magical challenges. Another one might be 'Russo Siblings' Adventure' which takes them on a new magical quest together. There's also 'Alex and Justin: Unseen Moments' that delves into some unshown moments between them in the magical world.
Conflict is also a theme that can be found. There could be external factors that oppose their relationship after the kiss, such as family disapproval or differences in their magical abilities. This creates drama and tension in the fanfic, making the story more engaging as they try to overcome these obstacles together.
Perhaps in a story where the world is in danger, and Alex and Theresa have to team up to save it. Along the way, they face many challenges and rely on each other more and more. Their bond grows stronger, and the kiss could be a celebration of their new - found closeness and trust. It could also be a moment of realization for them, like 'Oh, this is more than just friendship' kind of thing.