For me it was Elizabeth Berkley, who I used to watch on “Saved By the Bell”. It seemed that there was no way she’d ever do a nude scene. A few years later, voila!, “Showgirls”.
Next would be Phoebe Cates, of who I first saw a pictorial when I was an early teen. Next thing you know, “Fast Times at Ridgemont High”.
I’m not sure if this belongs in IMHO.