Anonymous wrote:What matters is how your DD feels about it. Is she bothered by the rudeness at all or does she brush it off as juvenile back-chat?
Because there is a reason young teen brothers and sisters find each other revolting and its important - its nature's way of avoiding incest. It really is. And that is fine.
wtf? I have a DS and DD, teens, and while they sometimes fight and can be mean to each other, they don't put each other down this way. One time they did, and I shut that sh1t down fast. I also have an older brother and older sister, and they didn't behave this way. My DH has a much older sister, and they weren't this way. Are you saying that there was some incestuous feelings? This is some crap Freudian BS.
No OP, the way your teen DS is behaving isn't normal. It's over the top. Of course, there will always be some friction between siblings, but if it's that negative, then something is wrong with your DS.
I know a teen DS who was a real sh1t to his sister (though younger), and the sister ended up having some issues because of how mean he was to her. IMO, he was jealous that the baby in the family took attention away from him. Now, I realize that this situation is the reverse -- younger sibling being the ahole -- but there has to be some underlying reason why he's such a sh1t to her all the time. I would especially focus on him being upset that she "won" the cooking competition, or whatever it was. Why did he think he "deserved" to win?