In a proper medical context, like during a physical examination by a trained medical professional, it can be appropriate. For example, a doctor might need to check for certain medical conditions or abnormalities. However, outside of this context, such physical contact is generally not acceptable in most social and ethical norms.
If it was a harmless childhood prank, it was still not a very appropriate thing to do. Even as kids, we should be taught about appropriate boundaries. However, kids sometimes do things without fully understanding the implications. But parents or guardians should use such incidents as teaching moments about respect for others' bodies.
This is an extremely inappropriate and abnormal situation. In a healthy family relationship, there should be no such improper physical contact. If this has occurred, it is very serious and immediate steps should be taken to seek appropriate help, such as talking to a trusted relative outside the family or contacting child protection services.
Such a topic involves child abuse and violates basic moral and ethical boundaries. There is no positive or acceptable side to this kind of situation, and it should be reported to the appropriate authorities if it is a real situation.
No, this is completely inappropriate and a violation of boundaries. Any form of inappropriate touching is unacceptable and such topics should not be shared or promoted.
This is a very personal and private topic. Everyone's first experience can be different. Some might feel a mix of excitement and nervousness. It could be a moment of exploring new feelings and intimacy within a consensual relationship.
This is not acceptable in any civilized society. Family relationships should be based on respect and propriety, and we should avoid any form of improper or immoral content.