Question about narcissistic mothers

[croquet]

Hello,

I started looking up narcissism to think about my stepkids' mother, who does seem to have those traits. I've been interested to read that narc mothers can treat their children as either golden child or scapegoat.

Thing is, in the situation I'm thinking of, there's two children and one perfectly fits the description of scapegoat and the other of golden child -- like really extremely.

Is this possible that a narc mother could treat two children these two different ways, or would they only treat all children the same way? Trying to work out if it's plausibly narcissism or something else.

Thanks.

Thanks Lego - I will never, ever mention any of this to the children and am always flattering and positive about their mum, and their relationship with her. It doesn't affect me directly like other stepmums so I have no bitterness, judgement, just wonder what they're dealing with. You've helped immensely.