Holy shit, he got this wrong. So wrong! Peter's exhaling a soft sound, running a hand back through his hair and sending a lopsided smile down to the kid.

"Yeah, we train together a lot, and also he's been showing me—" Peter pauses for a moment, reworks that thought. He has no idea if Mob's little brother is in the know about the spooky stuff, and he doesn't want to risk upsetting the apple cart. "—some other helpful stuff."

....Great job, Peter. "I had no idea he had a little brother, though. Good to meet you, dude! Did you get here pretty recently?"