"Hi, son," he said, and it wasn't weird at all to say it. Luke had always been years older than his true age. Growing up like he had, he'd adapted, learned to take care of himself, and learned to enjoy taking care of others. Getting Hector's memories in his head just made him more of a man in a teenager's body.
And he didn't care the how or why of his similarly-aged son showing up. It didn't matter. It was his son, his and Michaela's, and he was so fucking glad.