Their relationship could become more protective. Rowan would be even more vigilant about Aelin's safety and well - being, constantly hovering around her. And Aelin might become more dependent on Rowan in some ways, relying on his strength and support during her pregnancy.
Love is a very common theme. Their passionate love for each other is often explored in great detail, from the initial attraction to the deep and abiding love that develops over time.
The writing style matters a great deal. Vivid descriptions can really bring the kiss and the surrounding moments to life. If the author can describe the emotions, the sensations, and the setting in a detailed and engaging way, it makes for a great read. Additionally, how the fanfiction fits into the overall lore of the series is crucial. It should feel like it could be a part of the original story world, not something completely out of left field.
The main characters are obviously Aelin and Rowan. They are the parents in this fanfiction. And of course, their baby is also a very important character, around which a lot of the story's events revolve.
The theme of redemption can also be present. Maybe one of them has a past they're not proud of, and their meeting with the other becomes a turning point in their journey towards redemption. Their interaction during the meeting and afterwards can be a catalyst for positive change. For instance, Rowan might have been a bit of a loner or had a troubled past, but meeting Aelin gives him a new sense of purpose and a chance to be part of something bigger.
The plot also matters. It should be engaging, perhaps with new challenges for them to face as a couple. Like a new magical threat that they have to overcome together, which tests their relationship and makes it stronger. It could also explore their relationship in different settings or time periods that we haven't seen much in the original stories.
The 'soulmate' trope is also quite common. Fans love to write about Rowan and Aelin being destined for each other on a deeper, almost magical level. There's also the 'power couple' trope. Since they both are powerful characters in their own right, fanfictions often explore how they use their combined powers to face challenges together. This can range from fighting against common enemies to solving complex magical problems within their world.
One great aelin and rowan fanfiction is 'Aelin and Rowan's Adventure'. It beautifully depicts their relationship growth. They face various challenges together and their love for each other deepens throughout the story.
One common theme could be the new challenges they face as parents. Raising a baby is no easy feat, and in the fanfic, it might show how they deal with sleepless nights, feeding problems, etc.
There's also 'Aelin and Rowan's Love Story'. In this fanfiction, the kiss is described in a very detailed and passionate way. It shows how their connection deepens through that single act of a kiss, and it also delves into their characters' emotions really well.