Its hard to know if he was really forced, Junior is probably so used to being filmed he doesn't understand the difference between off camera and on. He could well have just naturally asked him.
What I do find a bit worrying is that he thought Pete was having a baby. I am not sure the level of biological knowledge kids his age are supposed to have, but this is a bit strange
He's a seven year old kid though. I don't imagine for a minute he really
thought his father was actually bearing a child. It's just a throwaway comment from a little boy, and I think there's too much being read into the remark..