One common theme could be the shock and confusion among the other characters. Given that aziraphale is an angel, his pregnancy would be an unexpected and extraordinary event. Another theme might be the exploration of how it could change his relationship with Crowley. Maybe it would bring them closer or cause some new tensions.
I'm not aware of specific 'pregnant aziraphale fanfic' titles offhand. However, you can try searching on popular fanfic platforms like Archive of Our Own. They have a wide range of Good Omens fanfics, and you might be able to find some that fit this concept by using relevant tags and keywords in the search bar.
In fanfics, the 'weight' could refer to the significance or importance of Aziraphale and Crowley. It might be about how much they matter to the overall plot or to each other. For example, a fanfic could focus on how their relationship is the 'weight' that holds the story together during a time of great upheaval in the Good Omens universe.
No. NSFW fanfic is not appropriate. It usually contains sexual or otherwise offensive content that is not suitable for general consumption. We should focus on positive and family - friendly fan - created content about aziraphale.
The curvy waist could be a symbol of his inner softness. He could be developed as a character who is not just the traditional stoic angel, but one who has a more nurturing side that is represented by this physical feature. For example, it could be shown that he's more in tune with the emotional needs of others because of this connection to his curvy waist.
Another character could be a young human that aziraphale has taken under his wing. The human is new to the city and has no proper heating in their small flat. Aziraphale, seeing their plight, decides to warm the bed to make sure the human is comfortable. This would show aziraphale's caring side towards humans.
The relationship could be depicted as one of deep longing. Crowley might fantasize about a closer bond, something that goes beyond their current friendship. For example, he could imagine holding Aziraphale's hand in a moment of shared vulnerability.
I would recommend 'Aziraphale and Crowley's Adventures in London'. This fanfic is full of fun scenarios where the two characters explore different parts of London. It shows their friendship in a very light - hearted way. The descriptions of the city are also quite vivid, which adds to the overall charm of the story. It's a great starting point as it doesn't have a very complex plot and you can easily get a feel for how the two characters interact.
His innocence. In many fanfics, Aziraphale's innocent view of certain things, especially modern human concepts, makes him really adorable. For instance, his confusion about modern technology can be quite charming.
I really like 'Crowley and Aziraphale's Celestial Adventures'. It has a lot of humor in it. For example, there are some really funny misunderstandings between Crowley and Aziraphale that add a light - hearted touch to the story. It also delves into their backstories in a creative manner, which helps to flesh out their characters even more.