Robin Williams 'visited sex shop as Mrs Doubtfire'

Robin Williams has revealed he once visited a sex shop in full Mrs Doubtfire garb.

This year marks the 20th anniversary of the hit film's release - in which Williams played a man who dresses as an older woman in order to see his children - and the actor has revealed a secret to mark the occasion.

Speaking on The Late Show with David Letterman, Williams revealed he took the makeup for a test drive - and headed to a sex shop to buy sex lube and a dildo.

He stated: "One time in makeup as Mrs Doubtfire, I walked into a sex shop in San Francisco and tried to buy a double-headed dildo. Just because. Why not?"

According to Williams, the employee in the shop was about to sell him the items, before realising he was talking to a famous male star and not an old lady. When the man asked him what he was doing there, the actor said he left the store without the goods.