The 24-year-old brunette beauty appears to be in the process of having one of the most prominent inkings removed - a portrait of screen legend Marilyn Monroe on her right forearm.
A heavy black tattoo like that would need numerous painful bouts of lasering to remove it totally, according to experts.
Former Transformers star Megan has eight or nine examples of body art as well as the doodling of her blonde bombshell idol, whose real name was Norma Jeane.
Other inkings include; a quote on her shoulder reading 'we will all laugh at gilded butterflies' and a tribal mark on her left wrist.