These two images of Marilyn are publicity stills from 'Monkey Business" filmed at the start of 1952.
Marilyn took an endless series of cheesecake photos while working for Fox, she knew her career depended on being noticed by somebody in a position of power. She was successful at this, first becoming one of Joseph M Schenck's 'girls' and then catching the eye of influential agent Johnny Hyde.
Marilyn instinctively knew how to pose for the camera. Here she is in a Catalina swimsuit while she was a teenager and known better then as Norma Jean Baker.