Men's magazines such as Playboy and Penthouse, in order to meet the strict censorship guidelines of the day where women were not allowed to have visible genitalia, would use this literal airbrush editing technique to make certain body parts (almost) Barbie-Doll smooth. Which probably led to a whole generation or two of men growing up with a poor understanding of female anatomy.
Here's a NSFW factoid too.
Men's magazines such as Playboy and Penthouse, in order to meet the strict censorship guidelines of the day where women were not allowed to have visible genitalia, would use this literal airbrush editing technique to make certain body parts (almost) Barbie-Doll smooth. Which probably led to a whole generation or two of men growing up with a poor understanding of female anatomy.