Hermione is very good at being discreet. She would simply avoid any conversations related to music in front of others. When she goes to buy the singer's merchandise, she would use a Disillusionment Charm to blend in with the crowd at the wizarding music stores. And she would hide any posters or pictures of the singer in a hidden compartment in her trunk that only she knows how to open.
She probably uses magic. For example, she could use a spell to mute any sound coming from her music player when someone gets too close. Or she might have a charmed diary where she writes about her love for the singer and it can only be opened by her magic signature, so no one else can find out.
It could be someone like Freddie Mercury. His flamboyant stage presence and amazing vocal range would surely attract Hermione. She might secretly listen to Queen's music in the Gryffindor common room when no one is around.
She could be using magic. For example, she might use a concealment charm on herself to hide any physical signs of pregnancy. Hermione is very skilled in magic, so she could easily cast spells that make her look the same as before. She might also avoid situations where she would be in close contact with Draco. By staying away from him as much as possible, she reduces the chances of him noticing any changes in her.
Perhaps the fanfiction has a great plot that revolves around Hermione. It could have a mystery or a quest that only Hermione, with her unique skills and knowledge, can solve. This makes her the central and most interesting part of the story. Also, the fanfiction may have well - developed secondary characters that interact with Hermione in interesting ways, enhancing her role in the story and impressing Rowlw.
In the fanfiction, Harry could outsmart Hermione by understanding people better. Hermione is often very logical and book - smart, but Harry might be more in tune with the emotions and motives of others. He could use this to his advantage in a situation where they are trying to solve a mystery or deal with a difficult person. He can read between the lines and make decisions based on his gut feeling about people, while Hermione is still analyzing the facts from her books.
It adds a new dimension to the fandom. For some fans, it provides a different perspective on the relationships within Hogwarts. It allows for exploration of female - female relationships in a world that was mainly focused on male - female and male - male friendships in the original series. It can also attract new fans who are interested in femslash content. For example, those who love reading about complex relationships between strong female characters like Hermione and her professors.
Well, in some versions, Fred might use his quick-witted magic skills. He could cast a distraction spell to draw Bellatrix's attention away from Hermione. Maybe a spell that creates multiple illusions of himself, confusing Bellatrix long enough for him to grab Hermione and disapparate them to safety.
Well, perhaps he uses his influence in the wizarding world. Maybe he has some connections or knowledge that allows him to intervene and get Hermione out of the abusive situation. For example, he could use his status among the pure - blood families to put pressure on the abusers.
Well, in some versions, Ron might use his quick wit and knowledge of Hogwarts' secret passages to outmaneuver Draco. He could lead Hermione to safety through a passage that Draco doesn't know about.
In some versions, Hermione might use her advanced magic knowledge. She could have discovered a spell that counteracts the pull of the veil. Maybe she found a way to disrupt the dark magic associated with it and was able to pull Sirius back from the brink just in time.
Well, in many such fanfictions, Harry might use his magic skills. He could cast a powerful stupefy spell on the troll to stop it in its tracks and then quickly lead Hermione to safety. Maybe he also uses his quick thinking and knowledge of the Hogwarts corridors to find a hiding place where the troll can't reach them.