How about trading places with Michael Caine when they filmed "Blame it on Rio"?
Heck, would "Blame it on Rio" even be legal nowadays?
There were a ton of movies in that era - Pretty Baby, Private Lessons - which would get you sent straight to a maximum security prison nowadays [with a tattoo of "child molester" on your forehead for the rest of your life].
Wasn't she his daughter in that movie? And like 17? Nah, she was way hotter in About Last Night.