Jack had waited, knowing that the Winchesters always needed a minute or two before they answered, if they didn't call him on in. Back at the bunker anyway. His hands went behind his back as he waited, a very neutral resting look across his young face.

The door slowly opened all of Jack's problems, worries and thoughts evaporated, as worry etched across those features in real time.

The beautiful face marred like someone had dared put hands on her. She was tough, she was a hunter like Claire. And he would have felt the same seeing bruises on Claire, or Jody's face. Who had raised that mindset into him? Did it come from the knowledge from Kelly? Or the Boys?

"Oh." He spoke worry clear as can be. "Please, let me help. I can help." He spoke as his hands came back around as he held them up. "I can't help Castiel, but please let me help you Jo, that must hurt."

He could ask later what happened, what mattered first was helping Jo.