"Dad." JR was tempted to take the little ones and lock his uncle and father in the room until they'd gotten over their mutual anxiety and disappointment. Yes it sucked that Jake didn't remember them or his time on the island, but he was back and if nothing else they could make a fresh start.
After all, it was still Jake. He was still the same skxawng he was before, he just had to get reacquainted with everyone.
"Yes he's really your brother." He addressed his uncle. "He's just being a skxawng right now."
He went and plucked Lilly from his father's arms. "C'mon short stuff, let's all go for some ice cream. Daddy and Unca Jaja need some private time." With that he started shooing all the youngsters out of the room.