Hayley Keenan
Nude

Hayley Keenan wasted no time in shedding clothing and getting a start on her skin career. In what may be the most underrated example of debauchery-laden, gratuitous-nudity-filled celluloid ever, otherwise known as Teenage Caveman (2001), she showed off her Hayley’s comets. Those milky-white breasts were revealed along with every other female in the cast! She even got some pretty hot bathtub action with co-star Tiffany Limos. Now that’s a debut we can get behind! A role like that would probably mean the end of a lesser babe’s career, but with another tit shot (albeit after slitting her wrists in a blood-red bath) in The Rules of Attraction (2002) opposite hunkenstein James Van Der Beek and Jessica Biel, skin’s the limit for this chick.