Benton (initially credited as Barbi Klein) appeared on the cover of Playboy four times: July 1969, March 1970, May 1972, and December 1985 and in additional nude photo layouts in the December 1973 and January 1975 issues. Though she was featured in a number of photo-essays, she was never a Playmate of the Month. She landed a spot on television's Hee Haw doing short comedy sketches, and subsequently enjoyed a career as a country singer. She also began acting, and appeared in the West German comedy film The Naughty Cheerleader (1970), before appearing as a featured repeat performer on a number of popular television series, including The Love Boat and Fantasy Island. Benton lived with Hefner from 1969 until 1976 and is known for discovering the Playboy Mansion West, where Hefner resided until his death in 2017. Years later, when the television series The Girls Next Door visited her in Aspen, Colorado, she expressed gratitude that the two had remained friends.