Growing up in the 70s porn wasn't as easily available as now. Maybe swipe Dad's Playboy to get some real nudes, but the underwear ads in my Mom's magazines or in catalogs were where it was out. I loved seeing the ones where you could see pubic hair under the sheer panties like these ones:
https://forum.oneclickchicks.com/sho...postcount=2065
Number 8 (row 4, right)
https://forum.oneclickchicks.com/sho...postcount=2061
Number 9 (row 5, left)
Thanks for posting these. The memories come back, and I still find it really erotic to see these women's secrets.