Actor Jennifer Lawrence refused to look like a prepubescent 13-year-old boy when she appeared naked in the upcoming flick
X-Men: First Class
. Lawrence, 20, who plays shape-shifting mutant Mystique in the superhero prequel, appears naked apart from blue body paint in numerous scenes in the film and she wanted viewers to see her with womanly curves. “I knew that if I was going to be naked in front of the world, I wanted to look like a woman and not a prepubescent 13-year-old boy. I’m so sick of people thinking that’s what we’re supposed to look like,” says the actor, who was nominated for the Best Actress Oscar for Winter’s Bone.