My parents told me that I will inherit more than my brother. I'm not going to object to that or stand up for him.
Are you and your brother close?
Sure, I hang out with him all the time.
It's good that you and your brother are close. You should stand up for him when something isn't fair, though. Don't you think he would stand up for you?
I really need the inheritance money though.
If you and your brother are really close, then you should have no problem sticking up for him here. Maybe he will not care about you getting more money, but it is not right to not tell him at all.