Michael Douglas has explained how he keeps wife Catherine Zeta-Jones interested in the bedroom.

The couple married nearly six years ago. His Oscar-winning other half has no need to lay back and think of Wales to conjure up images of her native home.

Her 61-year-old husband told chat show host Jay Leno that he impersonates the earthy Welsh accent of Richard Burton.

Douglas appeared on The Tonight Show sporting a beard and was asked by host Leno what his wife thought of his new appearance.

In a candid replay Douglas said: ¡°Well, you know we are into our sixth year of marriage now . She said ¡®I kind of fancy that¡¯.¡±

Leno then asked Douglas whether he ever pretended to be anyone else, and he replied: ¡°Sure, why not?

¡°You close your eyes once in a while, put on a Richard Burton accent maybe ¡ª something from the home country, it gives a little variety, the spice of life.¡±

Douglas also used the interview to deny reports that he had criticised Brad Pitt for leaving wife Jennifer Aniston for Angelina Jolie.

He said he had been ¡°misquoted¡±.