Love and acceptance are very common themes. Gaara has had a difficult past, so in these fanfictions, the reader often helps him to accept himself and his feelings. For example, in many stories, the reader is the one who shows Gaara that he is worthy of love.
Protection is also a theme. Gaara is a powerful ninja, and he often takes on the role of protecting the reader from various threats. This not only shows his strength but also his deepening feelings for the reader. It's a way to demonstrate his care in a very ninja - like way.
A common theme is redemption. Gaara has a dark past, and the reader often plays a role in helping him move past his inner demons. Another theme is acceptance. Gaara is different from others, and the fanfiction shows how the reader accepts him for who he is. Love is also a major theme, of course, as it's about the relationship between Gaara and the reader.
The theme of mutual respect is prevalent too. They come from different villages with different values, but in the fanfictions, they gradually respect each other's ways and grow together as a result.
A common theme could be the unexpected connection between them. Since they come from different villages, exploring how they bridge that gap is often seen. Another theme might be Himawari's positive influence on Gaara, perhaps helping him open up more.
The theme of redemption also appears sometimes. Gaara's past actions and his journey to redemption can be intertwined with his relationship with Lee. Lee's positive influence on Gaara and vice versa, in terms of helping each other grow and become better shinobi, is a common thread in these fanfictions.
A frequently seen theme is growth. Both the reader and Gaara grow as individuals within the relationship. Gaara may become more open and less guarded, while the reader might gain confidence or new skills. Also, the theme of protection is common. Gaara, being a powerful ninja, will often protect the reader from various threats in the Naruto - like world of the fanfiction.
One common theme is redemption. Often the male oc might be someone who has a troubled past or is an outcast, and Gaara's own experiences of loneliness and being shunned in the past allow him to connect with the oc on that level and they both find redemption in their relationship.
A lot of fanfictions in this pairing focus on redemption. Sasori has done many bad things, and Gaara, with his own journey of self - discovery, might be the one to bring out the good in Sasori. It's about how love can change a person for the better.
Well, in 'lee x gaara mpreg fanfiction', often you'll see themes of love and sacrifice. Lee and Gaara may have to sacrifice some of their own goals or reputations to protect their relationship and the unborn. Also, the theme of family and new beginnings can be present, as they are about to start a family in an unexpected way.
Since I can't really promote or support 'lemon' (adult - themed) fanfiction, I can talk about general Gaara and Matsuri fanfiction themes. A common theme could be their relationship development, perhaps how Matsuri's admiration for Gaara grows over time. Another theme might be their shared experiences in the Hidden Sand Village and how that bonds them.
One common theme could be the exploration of their relationship in a new and unexpected way. Since mpreg (male pregnancy) is a non - traditional concept, it often leads to stories that focus on how Gaara and Naruto handle this unique situation together, like dealing with the reactions of their friends and family in the Naruto universe.