No. Incestuous behavior and any form of exploration in that regard are completely unacceptable in society. It violates moral and ethical norms and can cause serious harm to family relationships and the individuals involved.
Well, it depends. In different cultures and family environments, the frequency of such incidents varies. Some families with strong religious or traditional values might be more likely to have such situations. But overall, as the awareness of child - friendly parenting grows, these are becoming less common.
One possible story could be that a family already has a son. Then they adopt a daughter, which is like the brother getting a sister. Shortly after, the mom discovers she is pregnant again, perhaps unexpectedly, bringing more joy and changes to the family.
Breeding between siblings and incestuous relationships are unethical and not acceptable in society, so there are no positive or normal 'stories' about this. Such topics violate basic moral and ethical norms.
No, it is completely inappropriate. Such a topic is private and not suitable for discussion between siblings. It violates the boundaries of a healthy and respectful family relationship.
Definitely not. Family relationships are supposed to be based on love, respect, and appropriate boundaries. Paying a sister for sex - related stories blurs those boundaries in a very inappropriate way. It can lead to a breakdown of the healthy family dynamic and can cause psychological harm to both parties involved.
No, it is completely illegal. Blackmailing in any form is against the law, and when it involves such inappropriate and unethical topics as sex stories between siblings, it is a serious violation of the law and basic moral principles.
Sure. One story could be that the mom organized a family game night. The sister and brother teamed up against the mom in a board game. There were lots of laughs as they tried to outwit each other. In the end, it didn't matter who won because they all had a great time together.
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.