It is not ethical at all. In a normal family and social context, sexual relationships should be within the boundaries of marriage and appropriate moral standards. Having relations with a wife's sister while the wife is present in any way is a very abnormal and unethical situation. It violates the basic principles of monogamy, family loyalty, and respect for family members. It can also cause a great deal of psychological harm to the wife and disrupt the stability of the entire family.
Definitely not. In most societies, this goes against the values of monogamy and family integrity. It can cause great harm to the wife, the sister - in - law, and the entire family structure. It's a serious breach of trust and moral boundaries.
If he watches sex stories, it can have a negative impact on his mental state. It may lead to feelings of guilt or shame. It can also desensitize him to healthy sexual values. Additionally, it could potentially damage his reputation if others were to find out, especially in more conservative social or professional environments.
No. 'Cum' is an inappropriate or at least very unclear term in this context. A proper English sentence should use more common and appropriate words. This phrase seems rather odd and not in line with standard English usage.
This is a very inappropriate situation. First, you should immediately stop reading such stories in her presence. Then, have a serious conversation with her about appropriate and inappropriate content. Make sure she understands that this kind of content is not suitable for her age.
It depends. If the stories are told in an appropriate context and are more about his life journey and self - discovery, it could be okay. But if they involve very private or inappropriate details, it might not be appropriate.
The consequences would be disastrous. It would shatter the trust within the family. The wife would likely feel betrayed, humiliated, and angry. The relationship with the sister - in - law would also be completely ruined. It could lead to the breakdown of the marriage and estrangement from other family members.