Once Vanity Fair was a good magazine, back over 100 years ago. That incarnation has nothing to do with today's celebrity fest, this was an early venture into dirty books, and those dirty books were dirtier still thanks to pants-fetish-loving lesbians.
This dirty little secret vice was uncovered by the investigative minds over at Dangerous Minds (link below), who write "'Bifurcated Girls' is downright tawdry! First of all, the term 'bifurcated,' meaning 'split in two,' has some distinctly labial implications...while it's hard to imagine the social vulgarity of an inseam that remains a safe and comfortable distance from the vulva, it's the overt lesbian subtext that steals my heart."
The images are not nakedly arousing, but awfully sexy as these ladies bend one another over their knees to sensually punish the bottom with a series of slaps across the backside of their slacks. You'll be anything but slack looking over these vestiges of perversions past.
Again, Dangerous Minds: "Dian Hansen, author of the fascinating History of Men's Magazines series, believes this issue of Vanity Fair to be the foundation of American girlie mags, and the single pampered man in the midst of some kind of gender-bending trouser orgy seems to support her claim."
Here we have fossil evidence of the evolution of porn. Let's take a look, for science.
Via Dangerous Minds