The sister was probably in shock at first. Finding out that her brother killed their mother would be an extremely traumatic event. She might have been frozen in disbelief for a while.
She could have felt a mixture of emotions such as anger towards Brett for what he did, and also sadness for the loss of her mother. Over time, she may have started to search for answers, trying to understand why Brett would do such a thing. Maybe she started looking into Brett's past behavior, his relationships, and any signs that could have indicated he was capable of this.
One possible motive could be jealousy. Maybe Brett felt that his mother favored his sister over him. This feeling of being second - best might have festered inside him until it exploded into this tragic act.
She was very calm when she caught us painting on the walls. Instead of scolding us, she got some paintbrushes and joined us. She said that as long as we were creative in the right place, like on a canvas in the future, it was okay. But we had to clean the wall together afterwards.
Mom might have provided medical care like cleaning wounds or giving medicine. Sister could have helped by getting supplies or just being there for emotional support.
She could be very sad. After all, Naruto is likely an important person in her life. She might feel abandoned and start to question why Naruto left her.
Yes. For instance, a story about a sister getting into her first dance competition and the mom being there to help her practice every day, sew her costume, and be her biggest cheerleader on the day of the competition. It shows the love and support within a family.
I immediately turned around and closed my eyes. I stammered an apology and then left as quickly as I could.
Another way is to participate in some activities together, like going for a walk in the park or watching a movie at home. This gives you more opportunities to communicate and understand each other better.
The sister could start to question her relationship with Bella. If Bella is being so forceful, the sister may wonder if Bella really respects her as an individual. She may also try to find ways to avoid the vampire fanfiction stuff, like making excuses or hiding when Bella tries to involve her.
She might feel guilty. Since they are siblings, she could be aware of Naruto's neglect and try to make it up to him in small ways, like sharing her food or secretly leaving him little gifts.
She should firmly tell the bully that this is wrong behavior and not be afraid to speak up.