Please, I prefer the term "immoral literature", but I went to college in the 1970s. Posterity will want to study it for purely sociological reasons. Of course, you try to call up those old Playmates, the phone number will be taken by a nursing home somewhere...
When I was in High School, my biology teacher was a former playmate. She was still hotter than the surface of the sun. Some of us were somewhat distracted by her ‘assets’. Despite the distractions, I did pretty well in that class.