Watch: Christie Brinkley & CoverGirl — Together Forever?

With a relationship going on 13 years now, it looks very likely that Christie Brinkley might be in it for the long haul with CoverGirl — although there's no word yet as to where these lovebirds are registered. But seriously, not only is it incredible that this partnership has been going on for so long, but honest, we're pretty shocked that we're not bored with her being the face of the beauty brand by now. Because, well, you'd think there's a limit to how many times you can see someone model lipstick and nail polish, right?

Maybe it's the fact that we just can't look away from her radiant smile, or that she brings a vibrancy and energy to everything that she does. Or maybe we're just insanely jealous and wish we were married to Billy Joel. Whatever it is, we're happy to keep seeing Brinkley on our television screens, and would be happy to see her promoting Covergirl for another 13 years. Ladies and gentlemen, this woman deserves another Sport's Illustrated cover.