Sybil Danning was 15 in Come Now, My Dear Little Bird when she played the character 'Lorelei'.
That was over 55 years ago in 1968.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 71, and has starred in 74 movies in total, 74 of those since Come Now, My Dear Little Bird was released.
In Come Now, My Dear Little Bird, I think Sybil Danning looks: