In fanfiction, Gaara could be possessive of Sakura due to their different upbringings. Gaara was alone and isolated for a long time, while Sakura grew up in a more normal ninja community. His possessiveness could stem from his envy of her normalcy and his desire to keep that 'light' in his life.
The theme of jealousy often appears. Gaara may become jealous if he sees Sakura interacting with other male characters, especially those who are also powerful or have a history with her. This jealousy can manifest in different ways, from silent brooding to more aggressive displays of his possessive nature.
One possible plot could be that Gaara, initially cold and reserved, starts to develop an intense, possessive feeling towards Sakura. Maybe he sees her kindness and determination during a mission and becomes fixated on protecting her in his own possessive way. This could lead to conflict with Sakura's friends who don't understand his motives at first.
One popular 'Gaara possessive of Sakura' fanfiction might be the one where Gaara starts to show his possessive side when Sakura is in danger during a mission. He steps in to protect her and makes it clear that he won't let anyone harm her.
One popular type of possessive Gaara and Sakura fanfiction might involve Gaara being overly protective of Sakura. For example, in some stories, Gaara could use his sand powers to shield Sakura from any potential harm, whether it's from other ninjas or just general threats in the Naruto world. This possessiveness can add an interesting dynamic to their relationship as it shows his deep care for her.
In fanfiction, their possessive relationship can be developed through external threats. Let's say there's a new enemy who is specifically targeting Sakura because of her relationship with Gaara. Gaara becomes extremely possessive and protective, not allowing her out of his sight. Sakura, seeing his worry, also becomes possessive of their time together and doesn't want to be separated from him even for a moment. As they face this threat together, their possessive feelings grow stronger and their relationship deepens.
In such a fanfic, their relationship could be full of tension. Gaara's possessiveness might cause Sakura to push back, creating a cycle of conflict and resolution. As they face various challenges together, they could start to respect each other more. For example, when they are on a mission and have to rely on each other's skills, this mutual dependence could soften their initial stances towards one another and strengthen their relationship.
A plot could involve a situation where Gaara and Sakura are in a relationship, and Gaara's possessiveness is a result of his past traumas. He's afraid of losing Sakura like he lost so much in his childhood. So he constantly hovers around her, which at first Sakura finds a bit suffocating. But as she understands his reasons, she tries to help him deal with his insecurities. And in return, Sakura's possessive side shows when other female ninjas show an interest in Gaara. She might use her medical ninja skills to subtly show her superiority in taking care of Gaara.
One possible story could be that Sakura goes to the Sand Village for a medical mission while Gaara is Kazekage. They start to interact more, and Gaara is impressed by Sakura's strength and kindness. Eventually, they form a strong friendship that helps in strengthening the bond between the Leaf and Sand villages.
Gaara's unique sand abilities and his connection to the tailed beast within him can add a lot of depth to a fanfiction. Sakura could be curious about this part of him and through her curiosity, they bond. Sakura's medical ninjutsu skills are also something to consider. Maybe Gaara gets injured and she has to use her skills to heal him, which leads to a deeper emotional connection between them as they talk during the healing process.