You'll Crack Up at the "Slutty" Costume Sandra Bullock's Son Wants Her to Wear

Sandra Bullock's 5-year-old son may be going as a ninja turtle for Halloween, but he had other ideas for his stylish mama. The actress showed up to The Tonight Show in a trendy navy and black Jonathan Simkhai midi dress that featured a mesh peplum hem and white embroidery. Her formfitting outfit, which she completed with strappy Stuart Weitzman stilettos, showed off her toned body, proving that the 51-year-old just doesn't age — but can she pull off a "slutty" Batgirl costume?

Sandra hilariously explained to Jimmy Fallon that her son selected the look from a "sensible catalog," pointing to it and exclaiming, "Mama, you has to wear this!" Read on to watch the clip and hear the star describe the Halloween costume, which consists of a leather miniskirt, over-the-knee boots, and bustier so small "you can barely tell it says Batgirl." Then, once you've got a smile on your face, scroll to see Sandra's fashionable ensemble, of the subtly sexy variety.