Romance is, of course, a major theme. The 'first time' aspect can be a significant milestone in a romantic relationship. This could include romantic gestures, sweet nothings, and a deepening of the emotional bond between Magnus and Alex. There might also be themes related to the setting, like a special location that adds to the mood and significance of their 'first time' together.
One common theme is friendship. Their relationship is often explored in depth, showing how they become close friends and rely on each other. For example, in many fanfictions, they help each other out during magical battles.
One common theme is friendship. Since Magnus and Alex have a unique bond, many fanfictions explore how their friendship develops and deepens over time. Another theme is self - discovery. They both are complex characters, and fanfictions often show how they learn more about themselves through their relationship with each other.
You can try searching on popular fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms have a wide range of fanfictions, and by using the relevant tags such as 'Magnus' and 'Alex' along with 'first time', you might be able to locate the fanfiction you're interested in.
One common theme is isolation. Magnus might be isolated due to his unique powers or past traumas, which causes him pain. For example, in some fics, his immortality makes him feel alone.
Another theme is the struggle against prejudice. Since they are from different 'worlds' in the story, they face a lot of judgment from others, and fanfictions often deal with how they overcome this. Also, the theme of self - discovery is quite common. Both characters grow and learn more about themselves through their relationship with each other.
Love is a very common theme. Their love story, how they overcame differences to be together. Another is the theme of acceptance, like Alec accepting Magnus' warlock nature and Magnus accepting Alec's Shadowhunter duties. And also the theme of family, as they both have different family backgrounds and how they merge their families in a way.
A frequent theme is also the power dynamics. Magnus has his powerful magic, and Alec has his position in the shadowhunter world. How they balance this in their relationship is often explored. Also, the theme of family acceptance is common. Alec's family and their reactions to his relationship with Magnus are often part of the stories.
One common theme is love. Magnus' relationships, especially with Alec, are often explored. Another is power. His magical powers and how they are perceived by the Shadowhunters are frequently a part of the stories. Also, acceptance. Magnus being a Downworlder, his fight for acceptance among the Shadowhunters and the mortal world is a common theme.
One common theme could be self - discovery. Alex is a character with a lot of potential for growth, and fanfictions often explore how he comes to understand himself better.
One popular theme is friendship. Writers might explore how Magnus and Alex become closer friends, sharing secrets and having each other's backs. Another could be adventure, where they go on quests together and rely on each other's skills.