My brother just told me that he's gay...?

He told me not to tell mom or dad because he will when he's ready. I don't know how to react. I mean don't get me wrong I still love him. I always looked up to him, he was more of a role model then my dad. I'm really shocked. It changes things, I'm afraid how our parents will react. They're stubborn and ignorant when it comes to the gay issue. They're typical southern baptists who think of it as an abomination. Whenever the issue was pressed on me, I just ignored it. I'm not guy so i didn't care about the whole issue. It didn't effect me. If my friends found out, I'd never hear the end of it. I know if people hate him for such a reason that they're wrong. Like I said earlier, I'll always love my big brother...I just don't know what to do? Is it normal for me to feel so confused?