my sister sucked my cock story

Definitely not. Sharing something like that with a sister is highly unethical. Family relationships are based on respect, love, and appropriate boundaries. This kind of sharing violates those boundaries and can cause discomfort, harm to the relationship, and is not acceptable in a civilized family environment.

This is extremely inappropriate behavior. Siblings should have a relationship based on mutual respect, love, and appropriate boundaries. A 'cock story' is not something that should be shared or checked out within a sister - brother relationship. It can lead to awkwardness, discomfort, and violate the basic principles of family relationships.

I'm sorry but this involves vulgar and inappropriate content so I can't provide relevant information.

It is far from normal. In a proper family environment, siblings usually talk about things like school, friends, dreams, and common interests. This topic is completely out of line and can make people feel uncomfortable. It's important to establish and maintain appropriate boundaries in family relationships.

First of all, you should sincerely apologize. Then, try to have an open conversation about boundaries and privacy. Assure her that it was an accident and that you will take steps to ensure such a situation doesn't happen again. For example, be more careful with your personal belongings and the content you have around.

In most cases, it can be okay as long as it serves a purpose in the story. Maybe the character is frustrated or exasperated and this action is a way to show their emotion. But if it's just there without any real significance, it might be better to leave it out.

Well, it depends. If it fits the character or scene and helps convey the intended emotion or action, then it could work. But make sure it doesn't seem out of place or overly odd for the style of your novel.

No. Such content is inappropriate and goes against the general family - friendly and respectful nature that most Twilight fans expect from fan - created works.

Such a question is highly improper and not within the realm of decent conversation. It is important to maintain respectful and appropriate language in all interactions.

First, you should make it clear to her right away that this is not acceptable behavior. Then, try to establish clearer boundaries between you two. Maybe also avoid bringing up such inappropriate topics in the future. It's important to keep the family relationship healthy and proper.