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.
First, if it's just a stupid joke among peers, you can have a conversation with those involved about appropriate language and respect. Tell them it's not okay to use such vulgar terms in relation to your son.
No. Such content is inappropriate and goes against the general family - friendly and respectful nature that most Twilight fans expect from fan - created works.
Well, without more context, it's hard to say exactly. It could be that there is some sort of object or situation that has been misnamed or misrepresented as a 'huge cock'. Maybe your son has a large - sized item that someone is joking about in a very improper way. But we should always be cautious of using such vulgar language when referring to children.
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.
The phrase is really ambiguous. 'Sucked' is a very casual and somewhat negative term. It could imply that the old man had a negative reaction to your story. Maybe he criticized it harshly, so it feels like he 'sucked' the life or quality out of your story.
No, it is completely inappropriate. Such a story involves vulgar and inappropriate sexual content that goes against moral and ethical norms in most social settings.