Lourdes and little bro RoccoLourdes and little bro RoccoZut alors! Madonna and Guy Ritchie cannot understand their own children - because they speak in French all the time.

Movie director Guy's dad has revealed that Rocco and Lourdes have all but shunned English at home.

The two enfants terribles have been attending posh Lycee Francais School in west London, where they study the language.

And with Lourdes now fluent - and Rocco well on the way - their folks are clueless as to what they are saying.

John Ritchie is quoted in The Sun as saying: "Rocco is certainly picking up a lot of French.

"He speaks it all the time at home because Lourdes is fluent. They talk to each other in French all day, chatting away non-stop.

"It's very funny. Neither Guy or Madonna speak a word of the language so they cannot understand anything."

Let's start with the basics, Madge: un, deux, trois...