Which 'Twilight' Cast Member Wished for an R Rated 'Breaking Dawn'?

MTV News livestreamed the “Twilight Saga Breaking Dawn: Part 1” Red Carpet and talked to Rob, Kristen, Taylor, as well as Carolina Herrera, Kellan Lutz, and Adam Shankman. Rob Pattinson told MTV News’ Josh Horowitz how’d love to have seen an R rated “Breaking Dawn”.