I am not a buig fan of AUs but this works perfectly. I can see Brian being this disconnected from Pittsburgh if he moved to New York. he might mean to stay in touch, but he would get distracted. And this small exchange tells me everything I need to know about it. Wonderful: Brian frowned. "How's Gus?"
Her voice got a little softer. "He's fine. Great. Did you want to talk to him?"
He can talk? Brian wondered, but didn't ask. "Sure."
And sometimes I like the idea of Justin meeting Brian when he is a little older and better able to handle him. They fit so well together here. I hope there is more of this.
One of the best Brian lines ever: "Yeah, well, maybe you're not too happy to have an asshole for a father."