Jessica Alba flashes her bra in a see-through top!

London: ‘Fantastic Four’ star Jessica Alba was spotted wearing a see-through top that left her black bra exposed at LAX Airport.

Alba, 29, was on her way back from Venice Film Festival where she attended the screening of her new film Machete.

She wore faded roll-up jeans, cream cropped jacket and a beige see-through top, which showed her black bra underneath.

The actress also revealed that she did not go totally naked when filming nude scenes in ‘Machete’.

“I had undies on, and I had other stuff on, and they just sort of etched it out in post production. That’s not really me. I’m better covered up,” the Daily Mail quoted her as saying.