There's a lot he still need to explain. But he's forever grateful that his mother trusts him enough not to be completely thrown by that new fact.

His parents have had a bit of time to get used to Billy's powers, the way he sometimes can't operate at a 'normal' speed even if he tries, but now, he's slowed right now, blinking numbly at the area his mother pointed to before giving a slow nod. "H-...he's does. I saw it when he was getting dressed. Mom...how do you-?"