The Muppets aren't exactly known for their risqué humor. Sure, they've been known to toss a bone to the adults in the room, but you rarely hear anything that wouldn't score a hard G from the MPAA. Which makes this sneak peek of Moviefone's upcoming 'Muppets' Unscripted session all the more surprising (and hilarious). It starts when Kermit relays a fan question about actor (and 'Muppets' screenwriter) Jason Segel's full-frontal nude scene in 'Forgetting Sarah Marshall' and evolves into a fuzz-raising discussion of nudity on camera. Kermit even works in a joke about the size of Segel's, um, manhood. Seriously.