David and Victoria Beckham are learning sign language with their children so they can communicate with a deaf friend.

The stars and their three boys, Brooklyn, 11, eight-year old Romeo and Cruz, five, have all been receiving tuition - but Victoria admits their youngest son has been using the regular sessions to learn a number of cheeky expressions.

The singer-turned-fashion-designer tells Britain's Hello! magazine, "We're all learning sign language because one of our friends is deaf. So of course the first thing Cruz, who is five, wanted to learn was how to say, 'I've got wind', and the 's' word. He also wanted to know what other swear words were."