For years, there was no magazine more famous for featuring beautiful women than Playboy. The outlet, started in the early 1950s by Hugh Hefner, expanded into a global brand, its logo synonymous with partying and sexual freedom. In Playboy's earlier years, Hefner happily opened up his brand and the women that made it to cameras, pulling back the veil on what life was like in their world. In the '80s and '90s, though, Hefner wasn't filmed at home quite as much, bringing back some air of mystery to the brand.

Then in the mid-2000s, E! News launched "The Girls Next Door," a reality series that starred Hefner and his three girlfriends at the time, Holly Madison, Kendra Wilkinson, and Bridget Marquardt. The show primarily followed the girlfriends as they showed what life was like at the Playboy

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