By hour four I had abandoned the fig leaf or whatever the hell they gave me and I was just throwing caution - and other things - to the wind.

Ryan Reynolds' manhood "popped out" while shooting his new movie.

The actor - who is married to Scarlett Johansson - was jumping around nude on the set of 'The Proposal' during a steamy scene with co-star Sandra Bullock and exposed his genitals to the entire cast and crew.

He is quoted as saying: "You know you've made a bad move, because you don't normally combine nudity with stunts. This isn't like Cirque de Soleil porn. It's a movie. You have these scenes where you slam into each other. You fall on to the ground and I would always know that something popped out wrong because the cameraman would go, 'Oh, Oh!' "

Ryan spent so many hours filming naked sex scenes he soon grew used to the crew seeing his private parts and decided to remove the cover they had given him to protect his modesty.

He explained: "By hour four I had abandoned the fig leaf or whatever the hell they gave me and I was just throwing caution - and other things - to the wind."