I'm not sure specifically about 'ghirahim x link mpreg fanfiction'. It's a rather niche area. You could try searching on some well - known fanfiction websites like Archive of Our Own. They have a vast collection of fan - created works, and you might be able to find something related to this pairing.
I'm not very familiar with this specific type of fanfiction, but generally, themes could include the relationship between Ghirahim and Link evolving in a unique way due to the pregnancy. There might be themes of protection, as Link would be in a vulnerable state. Another could be the reaction of the characters in the Zelda universe to this unexpected situation.
Common themes in this type of fanfiction include the exploration of good and evil. Ghirahim is clearly on the side of evil, while Link is the epitome of good. Fanfic writers like to play with how these two forces interact. The theme of obsession also appears. Ghirahim's fixation on Link can be a central theme, whether it's his desire to defeat Link or something more complex. And then there's the theme of growth. Through their interactions, both characters may experience personal growth, with Link becoming more confident in his abilities and Ghirahim perhaps evolving in his understanding of the world and his place in it.
Link would likely be defiant. He's a hero after all. He'd probably try to break free as soon as possible, using his combat skills and wits even while restrained. He might also taunt Ghirahim, trying to make him angry and slip up.
Well, in the fanfiction related to LOZ Skyward Sword, Ghirahim and Link have a very interesting dynamic. Ghirahim is this flamboyant and somewhat terrifying villain. He seems to be fixated on Link in a way that goes beyond just wanting to defeat him. Link, being the brave hero, is constantly challenged by Ghirahim. Sometimes, fanfic writers will play with the idea of a strange, almost magnetic pull between them, which makes for some really engaging stories.
One possible plot development could be Link's friends setting out on a rescue mission. They might face various obstacles and enemies along the way. For example, they could encounter Ghirahim's minions who try to stop them from reaching Link. Another aspect could be Link's own struggle while being held captive. He might try to find a way to escape on his own, perhaps by finding a weakness in Ghirahim's lair.
The theme of transformation is also present. As their relationship develops, both characters might change in some ways. For example, Fi might become more open - hearted due to Ghirahim's influence, and Ghirahim might become more reflective. These changes are often central to the plot in many 'ghirahim x fi fanfic'.
One popular 'ghirahim x oc fanfiction' story might be those that explore an adventure where the OC and Ghirahim are forced to team up. For example, they could be on a quest to find a powerful relic. The OC might initially be afraid of Ghirahim but then come to understand his motives and develop a complex relationship with him.
Another theme could be the idea of forbidden love. Given their different allegiances in the Zelda universe, a relationship between them would be considered against the norm. Writers often play with this concept, creating stories full of tension and drama.
One great 'ghirahim x fi fanfic' is 'The Meeting of Swords'. It beautifully portrays the unique relationship between the two characters. The author does an excellent job of exploring their personalities and how they interact in different scenarios.