Ryan, Patrick and Carter had been hanging out all weekend by the time this scene was shot, so they were all really comfortable with one another and had all already done scenes together as well. So once we were all set to go, everyone was really at ease and having a good time. In fact, Corbin left in extra bits at the start of the video, as well as some extra footage at the end, that show just how comfortable everyone was with one another and how much fun they were having.
ray says: 
kahkaha 
peter jones