London, July 09 : Soon after accidentally flashing her panties at the premiere of `Harry Potter the Half-Blood Prince' in London, Emma Watson's boob nearly popped out on her way back home from the event.

The actress first gave the crowd a glimpse at the red carpet when her frock slipped off due to strong winds blowing around, the Sun reports.

The wardrobe malfunction continued on her way back home after the screening as she was snapped inside a car with her breasts almost popping out of her dress.

Her co-stars Daniel Radcliffe and Rupert Grint also accompanied the 19-year-old actress.

`Harry Potter the Half-Blood Prince' is scheduled to release on 15th of July. (ANI)