Reinhardt is very polite about it. He keeps his hands were they can be seen, mostly because he's using them to close the coat around them both and trap in more of the heat. He already radiates warmth and Roxas just adds to it. It's nice and toasty with them both sitting like this next to the fire.

"You are very welcome, Roxas. Anything to help." He gives a smile and adds after, "Reinhardt and you feel free to stay here as long as you need. You aren't that heavy and I'm already feeling much warmer."