They didn't appear together, alas, but they talked about each other and it is cute! I'm indebted to serenography for the link, and tariel22 for her transcript at justtomwelling
Tom: "We had a situation on Smallville where we went up on the glacier to shoot, and literally one of the snowmobiles we had, the guy fell off and it kept going, it was heading toward a helicopter, and the only person who ran to stop the sled was Michael Rosenbaum. And he got there in time."
Tom admits that Michael would beat him in a sing-off or dance-off. But who tops in bed?