That's a completely inappropriate and morally wrong behavior. It's a betrayal of trust and can cause a lot of damage to the family and relationships.
Privacy should be the top consideration. If there are other family members, especially children, appropriate measures need to be taken to ensure they don't accidentally see something inappropriate.
She should first distance herself from the situation to clear her head. She could seek support from other family members or close friends. Talking about her feelings is crucial. She might also consider cutting off contact with her mother for a while until she can come to terms with what's happened.
It could be a great idea. Through sharing stories, they can create positive memories, and the daughter can learn positive values and gain more knowledge, while the boyfriend can show his caring side to the daughter.
We should firmly stop the spread of such stories. It is not only impolite but can also cause harm to family relationships.
He should communicate openly with his wife. Maybe there's a misunderstanding. He can calmly ask her about the situation and express his concerns.
Maybe they have a great time sharing interesting stories and the daughter gets to learn about different cultures from her mom's boyfriend.
In case they were involved in something dangerous, like playing with matches, the mom has to be firm. She should explain the serious consequences of their actions, not just scold them. For example, she can show them pictures or videos of fire accidents caused by improper use of matches. And then, she should set strict rules to prevent such dangerous behavior in the future. At the same time, she should also encourage them to be more careful and think about safety all the time.
In a traditional sense, it's not acceptable as it goes against the loyalty expected in a marriage. However, if in a more modern and open - minded context where they have an open relationship agreement, it might be okay. But that should be based on clear communication and mutual understanding between the husband and wife. For example, in some relationships, they might have agreed that they can have friends of the opposite sex and socialize freely as long as it doesn't cross certain boundaries like having an affair.
The daughter should firmly say no. She has the right to set her own boundaries and should make it clear that this is not appropriate talk.
Another possible experience is that they become the center of attention in a positive way. Everyone at the stag party may be curious about their presence, and they can use this opportunity to make new friends and share some interesting family stories, which can make the stag party more lively and diverse.