In many Sherlock fan fictions, Sherlock branding John could be a sign of his trust or a way to get a reaction out of him. It all depends on the author's imagination and the context they create.
There are many interesting fanfictions about Vampire John and Sherlock. One common theme could be how Sherlock, with his brilliant deductive skills, discovers John's vampire nature. It might involve a lot of mystery-solving around John's condition and how they navigate their relationship in the face of this new revelation.
The appeal lies in the unique twist it gives to the classic characters. It combines the mystery-solving aspect of the original Sherlock Holmes concept with the allure of the supernatural. Vampire John adds an element of danger and mystery.
In many Sherlock/John fanfictions, their care for a baby can be quite heart - warming. Sometimes it's a case - related situation where they end up taking care of an orphaned baby during an investigation. This often shows a softer side of their characters, especially Sherlock, who might seem initially clueless but gradually grows attached.
In many Sherlock/John fanfictions, Sherlock's actions towards John show deep affection. For example, he often goes out of his way to protect John from danger. He might put himself in harm's way just to keep John safe, which can be seen as a sign of love. Also, his jealousy when John pays attention to others can be an indication. In some fanfictions, Sherlock is overly possessive of John's time and attention, much like a person in love would be.
One possible fanfiction could be about Sherlock and John investigating a mystery related to a 'carve baby'. Maybe it's a strange art piece or an object with a hidden meaning that they need to decipher.
The 'carve baby' in the fanfiction could be a symbol. It might represent something from Sherlock and John's past, like a case they worked on long ago that had an unresolved element related to a carved baby - like object.
Often, they explore different relationship dynamics. With a female John, the emotional exchanges can be more nuanced. For example, the way she might communicate her thoughts and feelings to Sherlock could be different from a male John.
The fanfic could also focus on the challenges they face in society as a non - traditional family. John and Sherlock might face discrimination or skepticism from others when they try to adopt Harry. However, they persevere because of their love for Harry and each other. This could show how their strong bond helps them overcome external difficulties and build a loving home for Harry.
One possible fanfiction could be 'The Unforeseen Danger'. In this story, Sherlock and John are on a case chasing a serial killer. While investigating an abandoned building, they are ambushed. John gets stabbed while trying to protect Sherlock, and Sherlock, in his rage to save John, gets a severe blow to the head. But their strong bond helps them get through the ordeal.