Well, it could go in many ways. Sally might feel a bit embarrassed for intruding on their moment. She could also be very motherly and start making some light - hearted jokes to ease the tension. Maybe she'd say something like 'I hope you two aren't getting into too much trouble' with a wink.
In fanfiction, Sally might be written to have a very different reaction. For example, she could immediately start asking Annabeth all sorts of questions about her intentions with Percy. Or she might be so surprised that she just stands there for a moment, then quietly leaves the room to give them some space to explain themselves later.
She might be a bit shocked at first. But then, being Sally, she'd probably quickly regain her composure and give them a knowing smile. After all, she's seen Percy grow up and she would be happy for him to have such a close relationship with Annabeth.
It might create some conflict initially. Percy and Annabeth could be worried about Sally's reaction, which could lead to some misunderstandings between them. However, as the story progresses, they could work through it and Sally could end up being a strong advocate for their relationship, adding a new dynamic to the fanfiction.
Percy might be a bit flustered and embarrassed. He's protective of his relationship with Annabeth, so having Magnus walk in might make him feel like their privacy has been invaded. He could quickly try to shield Annabeth or just look really shocked.
Sally would likely become a mother figure to Annabeth. She would offer her advice and support, just as she does for Percy. Percy and Annabeth's relationship would become more domestic. They'd have more time to just be together, sharing small moments like having breakfast together in the morning. Their bond would strengthen as they face the normal day - to - day challenges of living together, along with Sally.
Well, it could be because Sally is an important person in Percy's life. He trusts her and wants to share the interesting things about Annabeth from the fanfiction with her.
Percy could be really angry. He might lash out at Annabeth and those involved. He has a fiery temper sometimes, and this would be a huge betrayal.
Percy would probably be extremely hurt. He trusts Annabeth deeply, so this betrayal would shatter that trust. He might feel angry at first, wanting to confront both Annabeth and Luke.
One possible motive could be to create a really dark and edgy take on the characters. Maybe the writer wants to explore how far the characters could be pushed out of their normal personalities. For example, if Percy was under some kind of dark magic influence, it could lead to such an out - of - character action.
Maybe in the fanfiction, Annabeth moves in to further study some ancient texts that Sally has access to. Percy is excited as he gets to spend more time with Annabeth. They face challenges like adjusting to living together, like who takes out the trash or does the dishes. But overall, they create a warm and loving environment, with Sally acting as a guiding figure for both of them.
Maybe Percy tells Sally about Annabeth's amazing adventures in the fanfiction. For example, her heroic deeds in battles against monsters.
Reactions could vary greatly. Some might freeze in panic, while others might try to explain or make excuses. But in any case, it's a highly stressful and embarrassing moment.