06/11/2010 12:31 pm ET Updated May 25, 2011

John C. Reilly vs. Jennifer Aniston's Chastity Pillow (VIDEO)

Have you ever wondered how awkward filming a sex scene in a movie might be? We don't think anyone could have depicted a more awkward scenario than John C. Reilly on "Late Night" last night. John had Jimmy cracking up while he detailed his sex scene with Jennifer Aniston in the movie "The Good Girl." Let's just say it involves several pairs of sweatpants, a crushed ego, and something called a "chastity pillow." Yeah, it was weird.