The struggle against supernatural forces while being pregnant is often seen. Gabriel still has his powers, but being pregnant might limit him in some ways or make him a target. So the fanfictions might explore how he overcomes these challenges, whether it's hiding from demons who might want to use his unborn child for their own purposes or finding a way to keep himself and the baby safe in a world full of danger.
Family and relationship dynamics are also big themes. How the other characters in Supernatural, such as Sam and Dean, react to Gabriel's situation. It could be a mix of shock, support, or even some initial disbelief. And of course, there could be the relationship with the other parent (if there is one in the fanfic) which can range from a loving partner to a more complicated situation.
One common theme is the exploration of non - traditional family structures. Since it involves male pregnancy in a supernatural context, it challenges the normal concept of family. Another theme is the power of love and how it can overcome the difficulties that come with such an unusual situation.
One common theme is the exploration of new relationships. With the male pregnancy concept, characters often have to re - evaluate their connection and responsibilities. Another theme could be the challenges faced during the pregnancy, like dealing with the unknown in a world where male pregnancy is not the norm in the 'Supernatural' setting.
Another theme is the exploration of different realms. As Gabriel has the ability to travel between realms, fanfictions often take the soulmate on adventures through different planes of existence. This allows for some really creative and exciting storylines, with the couple facing various challenges in different supernatural settings.
One common theme is their unique relationship dynamic. Since Gabriel is an archangel and Sam is a hunter, there's often a play between power and vulnerability. Another theme is the idea of redemption for Gabriel through his interactions with Sam.
One common theme is the exploration of their relationship. The pregnancy often serves as a catalyst to deepen the bond between Dean and Castiel. It forces them to communicate more openly and face their feelings for each other.
Another theme could be the danger and mystery that often surrounds the supernatural elements in the show, but now in the context of Dean's pregnancy. For example, there could be a plot where the cause of the mpreg is some sort of dark magic or a new, unknown entity, and Dean and the gang have to figure out how to deal with it while also ensuring the safety of the unborn child. This adds an extra layer of drama and adventure to the story.
One common theme is the exploration of Dean's character in a new and unexpected situation. The mpreg aspect forces him to face emotions and challenges he may not have otherwise.
One common theme is the struggle for acceptance. Sam has to deal with his own self - acceptance of his pregnancy, and also get acceptance from his friends and family in the 'Supernatural' world.
The theme of change is also prevalent. Gabriel's pregnancy is a major change in his character arc. Fanfics might explore how he changes as a person, from his carefree and mischievous self to someone more responsible and nurturing. This change can also have a ripple effect on the other characters and the overall story dynamics within the Supernatural world.
Redemption is also a common theme. Given his complex backstory in the show, fanfictions often delve into Gabriel's journey towards redemption. This could involve him making amends for past actions or finding a way to atone for his mistakes. Writers might explore his relationships with other characters like Castiel or the Winchesters in the context of this redemption arc. It can be really interesting to see how different authors interpret his path to redemption.