One should take it very seriously. Report it to the appropriate authorities if it seems like a non - consensual situation. Also, make sure to support the stepsister and let her know that this behavior is unacceptable. Try to create a safe environment for her to talk about her feelings.
No, it is completely unethical. Watching someone in such a private and vulnerable situation without their consent is a serious invasion of privacy and violates basic moral principles.
One should firmly object to it. Let the person know that such stories are not acceptable in a civilized society.
If it was accidental, they should immediately distance themselves and try to forget about it. Pretend it never happened and respect the privacy.
One should firmly distance themselves from such a story. It is not a healthy or positive topic. You can tell the person sharing it that this is inappropriate content.
One should immediately distance themselves from the situation. It's not something that should be listened to or encouraged. Report it to the appropriate authorities if there are any signs of illegal or unethical behavior involved.
If you hear such a story, the first thing is to offer support to the victim. Let her know that she's not at fault.
If you hear such a story, the best thing to do is to stay out of it. It's a private matter. You could simply ignore it and not spread the story further as spreading it would be unethical and could cause unnecessary harm to the people involved.
One should firmly stop the person from continuing to tell such an inappropriate story. It's not something that should be shared or listened to.
Ignore it. Don't participate in spreading such inappropriate information.
One should firmly refuse to spread it further. Ignoring it and distancing oneself from such inappropriate content is a good start.