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.
Mom helped by quickly getting a cloth to stop the bleeding if there was any, like if he had a cut. And she probably comforted him too.
Once, the brother was playing football in the yard and accidentally twisted his ankle badly. His mom, who was in the kitchen, heard his cry and rushed out. She carefully examined his ankle. Then, the sister, who was reading a book, also came to help. The sister fetched an ice pack from the freezer while the mom gently supported the brother's leg. They sat him on a chair and the sister held the ice pack on his swollen ankle. The mom went to get some painkillers. With their care, the brother felt much better soon.
One day, the brother was climbing a tree in the yard. He lost his grip and fell. Mom, who was nearby gardening, rushed to his side. The brother had hurt his arm. Mom quickly examined it and realized it might be broken. She called for an ambulance. While waiting, she supported his arm in a makeshift sling using a scarf. When the ambulance arrived, she accompanied him to the hospital and stayed by his side until the doctors had treated his injury.
Well, we could start by thinking about a common situation for them, like a family trip. For example, the mom plans a trip to the mountains. The sister is excited about seeing the beautiful scenery, the brother wants to do some adventurous hikes, and bravo (let's say it's their pet dog) just loves running around in the open. Then during the trip, they face a problem like getting lost, and they have to work together to find their way back. This simple plot can form a nice story.
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.
A brother can help his sister with her studies. For example, if he is good at math and she is struggling with it, he can patiently explain the difficult concepts to her.
She can help him find lost things, like in the case where she looks for his toy in the park.
Another reason might be that they are not following the rules. For example, if there is a rule that they can't watch TV until they finish their chores, and mom catches them slacking off and watching TV instead, she would have to step in and remind them of the rules.
Once upon a time, there was a family with a mom, a sister and a brother. One day, they went on an adventure. Alpha bravo was the name of the dog that accompanied them. Along the way, they faced many challenges but with the help of alpha bravo's keen sense of smell and the family's unity, they overcame all the difficulties and had a great time together.
No. Such a story involves inappropriate and unethical relationships that go against moral and family values. It is not acceptable in a healthy society.