Another possibility is that it could be an old flame from Fiona's past, like Jimmy. Even though he had his own issues and disappeared at times, his reappearance in the fanfiction as the potential father could create a lot of tension and bring back old feelings and storylines. It would also make for an interesting exploration of their relationship and how it would develop with a pregnancy involved.
It could be Gus. Since they were married, it would be a likely candidate in a fanfiction. Their relationship had its ups and downs, and if Fiona got pregnant during their time together, it would add a whole new layer of drama.
One possible storyline could be Fiona struggling to balance her pregnancy with her chaotic family life. Maybe she tries to keep it a secret at first to avoid more drama, but then has to face the reality as her body starts to show. Another could be about her relationship with the baby's father, whether he is supportive or not.
Another option could be a new character introduced specifically for the fanfiction. This character could be a powerful pirate or a mysterious figure from Hancock's past. He might have a connection to Hancock's family or her position as a Shichibukai. His presence would add an element of mystery and new dynamics to the story, especially in relation to the pregnancy.
Perhaps an unknown entity from a different realm. Loki might have had an encounter during one of his travels to other worlds, and this being's powers or nature caused the pregnancy. It could be a powerful magical being that Loki underestimated, and now he has to deal with the consequences.
Another option could be an old flame from her past that re - enters her life just as she discovers she's pregnant. This would create a complex love triangle - type situation where she has to decide between her past and her present, all while dealing with the pregnancy.
It could be his long - time partner. They might have had a very loving relationship that led to this situation.
Perhaps it's a mysterious stranger she met at a party. They shared a brief moment together, and now she's pregnant. Or it could be an old acquaintance who has always had feelings for her and took advantage of a vulnerable moment.
Maybe it's a new character introduced specifically for the fanfiction. This new character could be from a different faction or group, and their relationship with Makima could be full of intrigue and mystery. The pregnancy could be a result of some sort of strategic alliance or a passionate encounter between them.
It could be one of her close friends in the story. Maybe someone she has had a long - standing relationship with and the pregnancy was an unexpected but not entirely unwelcome result of their relationship.
Another option could be a mysterious figure. For example, a character from another dimension or a new character introduced specifically for this plot twist. This could add an element of mystery and intrigue to the story.
It could be a long - time love interest like Stefan. Their relationship has had its ups and downs, and a pregnancy could add a whole new layer of complexity to their story.