One common scenario is when they are in a dangerous situation together, like facing a powerful dark wizard. Draco steps up and uses his skills and knowledge to keep Harry safe. For instance, in a fanfic where they are trapped in a haunted castle, Draco uses his Slytherin cunning to find an escape route for both of them, which makes Harry feel protected.
In some fanfictions, it could be because Draco shows a different side of himself. Maybe he protects Harry from other threats secretly. For example, he might use his knowledge of the Slytherin world to keep Harry out of danger.
Sometimes, in these fanfictions, the punishment is related to a competition. Say there's a magical tournament or a Quidditch - related event where Draco believes Harry has cheated or played unfairly. Draco, being the proud Slytherin he is, decides to punish Harry. It could involve making Harry do embarrassing tasks or even trying to get him banned from future competitions.
One common scenario is in a dangerous magical situation. For example, in a battle at Hogwarts, Draco might step in to protect Harry from a dark wizard's spell. Another could be in the face of social threats within the school. Maybe some students are trying to bully Harry, and Draco, having a change of heart, defends him. It could also be that Draco protects Harry from a plot within the Slytherin house that aims to harm Harry due to his fame as 'The Boy Who Lived'.
A fanfic that focuses on the friendship between a Hogwarts student and a Twilight vampire could be very comforting. Imagine a story where the vampire, with all their knowledge of the supernatural world, helps the student through a difficult time at Hogwarts. They could offer advice on how to deal with dark magic threats, and their presence would make the student (and the reader) feel safe.
One common scenario is in school settings. When other students are bullying Harry or trying to harm him, Draco steps in to protect. Another could be during dangerous magical events. For instance, when a dark magic spell is about to hit Harry, Draco uses his own magic to shield Harry.
A lot of 'Harry and Draco make out fanfiction' has the theme of redemption. Draco, who was often on the wrong side in the original story, may be shown as seeking redemption through his relationship with Harry. Also, the theme of forbidden love is quite common. Their relationship goes against the norms of the Hogwarts houses' rivalry and the pure - blood/muggle - born divide in the wizarding world. It makes for a very interesting exploration in these fanfictions.
One common theme is the exploration of their opposing natures. Draco being from a Slytherin family and Harry from Gryffindor. Their love is often shown as something that overcomes these differences. Another theme could be redemption, where Draco is redeemed through his relationship with Harry. And sometimes secrecy is a theme as they might have to keep their relationship hidden from the wizarding world.
One common scenario could be that Harry is caught sneaking around the Slytherin common room or stealing potions ingredients from Snape's stores. So, Snape and Draco might make him do extra detention tasks like scrubbing the cauldrons for hours without magic. Another situation could be if Harry is suspected of cheating in a Potions exam. Draco might report it to Snape, and they could punish Harry by making him redo all his Potions experiments from the semester.
One common scenario is Draco protecting Harry from other Slytherins who might still hold grudges against Harry. Another is Draco standing up for Harry during dangerous situations in the wizarding world, like when there are threats from dark wizards. And sometimes it's about Draco protecting Harry from the emotional harm caused by the wizarding society's expectations.
One common scenario is during duels. If Harry is in a duel and is about to be overpowered, Draco might interfere and protect him. Another is when Harry is exploring dangerous areas, like the Forbidden Forest, Draco could accompany him and fend off any threats.