They are made as special effects to be worn by the actors and look realistic when filmed.
In the medieval period, Islamic norms became more patriarchal, and very concerned with the chastity of women before marriage and fidelity afterward.
To maintain public propriety on a nude beach, German naturists avoided touching themselves and others and avoid any adornments or behaviors that would call attention to the body.
Prosthetics were used on and off through the years.