Actress Sandra Bullock is one hot mama! The Oscar winner sizzled on the red carpet at “The Heat” premiere in London, showing some skin – and her bra – in a backless, little black dress.

Sandra Bullock Sizzles at ‘Heat’ Premiere in Backless Little Black Dress
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Bullock wowed in a silk Victoria Beckham gown, accessorizing with a black built-in bra, belt and strappy stilettos. The 48-year-old completed the look with loose waves in her hair and sultry makeup.

[Credit: Getty Images]

It was mommy’s night out for Sandra, who was promoting her new buddy comedy with Melissa McCarthy, in which Bullock plays an uptight FBI special agent paired with a testy Boston cop (McCarthy). The unlikely duo must take down a drug lord without killing each other in the process.