I've seen several times that D and C had an extra, uncalled for kiss on the episode where they got back together the first time...what's that about?
During one of the final takes during Got To Get You Into My Life, C and D were told they did not have to do the kiss at the end of the song as it was a wide, overhead shot and they wouldn’t be in it. They chose to kiss anyway. It’s what I love to call “CC as Klaine”. Here’s a gif of it - notice the crew member walking through the shot?