I'm not aware of any common themes as such in this specific type of fanfic since it's not a very common or mainstream pairing. But generally in fanfics, themes could include exploration of their relationship, how they interact in different scenarios, and perhaps some kind of adventure or conflict that brings them closer together.
One possible theme could be the discovery of each other's worlds. Tifa coming from a more human - centric world and Nanaki from his own species' culture. Another could be the power of their bond in overcoming difficulties. But again, these are just assumptions as there may not be enough 'Tifa and Nanaki' lemon fanfics to define truly common themes with certainty.
Since Tifa is a human and Nanaki is a different species, there might be themes related to the bridging of their differences. It could also involve themes of loyalty and friendship that might develop into something more. However, it's important to note that this is all speculation as there may not be a large body of work for this particular fanfic type to really establish common themes.
There could be some out there, but finding a high - quality 'Tifa and Nanaki' lemon fanfic might be a challenge. You'd have to search through various fanfic platforms. However, be cautious as not all fanfics are respectful of the original characters or the overall theme of the source. It's important to look for ones that add something new and positive to the characters' relationship.
One common theme is friendship. Since they are from different species, their bond is often explored as a unique form of friendship that overcomes differences. For example, in many fanfics, they learn to trust each other despite initial misunderstandings.
One common theme could be the anticipation and preparation for the new life. Another might be how the relationships around Tifa change due to her pregnancy.
Love and romance are also quite common themes. Given Tifa's relationships with other characters, fanfics often play with the idea of love in different ways. It could be a slow - burning love story or a more complex love triangle - like situation.
A common theme might be the bonds that Nanaki forms. Given his nature, fanfiction could explore the deep and meaningful connections he has with his friends in the FF7 universe. This could include his loyalty, his wisdom, and how he imparts that to those around him. It might also touch on his place in the group dynamic, whether it's being a source of stability or a catalyst for change among the characters.
Another theme is growth. The characters often grow as individuals within the relationship. For example, they might overcome personal fears or insecurities because of the influence of the other. In some fanfics, they also grow in their understanding of the complex world around them.
A common theme is friendship. Many fanfics explore how Aerith and Tifa, despite their initial differences, become close friends. Another theme is mutual support. They often rely on each other in difficult situations. For example, in some fics, when one is in danger, the other comes to the rescue. And there's also the theme of female empowerment. Together, they show that women can be strong and independent and still have a great relationship.
Another theme is the exploration of their differences. Tifa is more of a fighter, while Aerith has a more spiritual side. Fanfics play with these differences, like in some where Tifa protects Aerith physically and Aerith protects Tifa spiritually.
One common theme is the exploration of their relationship in the Dissidia universe. Given that it's a different setting from the main Final Fantasy series, fanfics often delve into how their feelings and interactions change. Another theme could be adventure, as they are often in battles and quests in Dissidia, and fanfics might expand on those scenarios together.
Another theme could be the exploration of their relationship in different settings. Maybe in some fanfics, they are in a post - apocalyptic world of Final Fantasy, and their love story unfolds in the midst of chaos. Also, the theme of self - discovery for both Cloud and Tifa often comes up. As Cloud learns to love Tifa, he discovers new aspects of himself, and the same goes for Tifa. Their relationship becomes a journey of mutual understanding and growth.