Perhaps a fanfiction where Serleena's belly is the key to her true form. There could be a series of events that cause her to transform, and it all starts with something that affects her belly. This could involve a strange alien parasite or a powerful energy source that she absorbs through her belly.
Another place to look is Archive of Our Own (AO3). It has a great collection of fanfiction. Search for 'Man in Black 2' and then look for stories that mention Serleena's belly. You may have to dig a bit, but you're likely to find some unique takes on the concept.
One possible fanfiction could be about Serleena's backstory before she came to Earth in Men in Black. Maybe she was a powerful being in her own galaxy but was exiled for some reason. So she set her sights on Earth as a new place to rule.
A cool plotline could be Serleena getting stuck in a time loop. Every time she tries to complete her mission on Earth, something goes wrong and she's sent back to the start. This would be a great opportunity to explore her character in different ways as she tries to break the loop.
In Serleena fanfiction, a great plot could be her redemption arc. Picture this: after her defeat in the movie, she is found by a group of kind - hearted aliens who help her see the error of her ways. She then uses her powers for good, perhaps helping the Men in Black in some future threats. It would be a really cool way to rewrite her character.
A common theme is power. Serleena is a very powerful character, and fanfiction often explores how she uses or misuses her power. Some stories might show her trying to gain more power, while others could show her learning to control it in a different way.
In fanfiction, 'Men in Black' is a well - known franchise. Serleena is a character from it. If there's a scenario where she 'eats creepy', it could be a very creative and out - of - the - box interpretation by the fanfic writer. Maybe it's a symbolic way of showing her dominance or some strange power she has in the context of the fan - created story.
One idea could be that the black suit gives Peter Parker enhanced senses that are a bit too much to handle at first. He has to learn to control them while also dealing with school and his normal Spider - Man duties.
One idea could be exploring his past before he became the Man in Black. Maybe he had a family or a different life that led him down this dark path. Another plot could involve him having a change of heart due to an unexpected encounter, like meeting a child with pure innocence that makes him question his actions.
A more heart - warming idea for fanfiction could be that Rachel's pregnant belly becomes a symbol of hope for the group. Maybe at a time when they are all facing some personal or professional setbacks, the impending arrival of the baby gives them a new perspective. They all start to focus on the positive aspects of new life and the future, and Rachel's pregnant belly is at the center of this transformation. Her friends could start doing things like painting the nursery together or throwing her a really special baby shower.
One plot idea could be that Black Suit Spider - Man and Black Cat team up to take on a new super - villain in the city. This villain could have a power that is linked to some dark magic, which makes the black suit of Spider - Man react in strange ways, adding an element of mystery to the story. Another idea is that Black Cat steals something valuable that she thinks is just a regular jewel, but it turns out to be an alien artifact. Black Suit Spider - Man has to convince her to return it before it attracts unwanted alien attention to Earth.