Chinese actress stepped out braless at a special press event in Toronto

Yao was dressed in a flowing lace dress, which boasted a sheer panel down the front, and no bra.

The dress had broderie anglaise and puffy sleeves detail left her chest on show for all to see and there's little doubt that Jackie hadn't noticed her revealing outfit.

Jackie Chan saves braless co-star's blushes by handing her a soft toy