The Cynthia Myers side/bend-over pic is indeed one of the classics. Her look seems to be saying: WOuldn't you love to suck on these massive, bulging udders?
I exchanged a few emails with her several years ago and asked in one whether she had ever been heavier and bigger up top that in her Playboy pics, since they usually want their models to diet down. She replied that she had, once reaching 42". My heart nearly stopped when I read that and pictured what she must have looked like.