Oh, damn. Apparently his attempt at lightening the mood had only made things worse. "No, don't..." He reached out to tip Billy's chin up and only then realized that his skin was shifting, changing colors and stretching. It tended to do that when he was attacked...but that hadn't really been an attack, and it only took a moment's thought to chase away the spreading green with fresh, pink skin. "Don't feel bad, Bill, I know you're not ok with stuff like that. I should've stopped before it got there."