AKIPRESS.COM - Extraordinary photographs purporting to show a secret pregnancy of film icon Marilyn Monroe can now be revealed for the first time.

The world exclusive images of the beautiful Some Like It Hot actress and model were sold as original color slides at an auction in Hollywood in November last year from the estate of well known Monroe confidante Frieda Hull, DailyMail reported.

But the stunning photos went under the radar, selling for a mere $2,240 with wealthy collectors not aware of their true significance.

Now DailyMail.com can reveal the six unique images were the prized possession of Monroe's loyal friend Hull, which she dubbed the ‘pregnant slides’ – a reference to a shocking secret the screen siren kept right up until her death.

The shots were taken on July 8, 1960, outside Fox Studios in New York after Monroe had completed costume and hair tests for her film The Misfits, starring Clark Gable and Montgomery Clift.