Megan Fox is losing weight!

Fox was ordered by her Transformers director Michael Bay to pile on the pounds for the sequel to the robot blockbuster, Absolute Now reports. But Fox is still as skinny - if not skinnier. "She's been trying to bulk up with junk food and her favorite, doughnuts, but it just doesn't seem to be working," explains a source close to the 22-year-old actress. "It's either she's burning it all off with her exercise regime, or maybe she's just lost that teenage puppy fat. Skinny seems to be her natural figure."

Image WENN