Baby Harry, pointing at James: Papa
Regulus: Yes sweetheart, very good!
Baby Harey, pointing at Regulus: Dada
James: YOU ARE SO BRILLIANT OH MERLIN I HAVE THE MOST INTELLIGENT CHILD-
Baby Harry, pointing at Remus: Fuck!
Regulus: I AM GOING TO KILL YOU LUPIN!
Sirius: LANGUAGE! I doubt that you know BUT there is a BABY!
Regulus: No I doubt that YOU and YOUR HUSBAND know that THERE IS A BABY!
James, clearly enjoying the drama between these three: So, you're gonna run or something?
Remus: Yeah, totally gonna do that, bye
Regulus: I'm gonna be a MURDERER