FASHION designer and mother-of-four Stella McCartney has revealed she is uncomfortable with the word "nanny" and prefers to call her "a friend".
Ms McCartney, whose children are all under the age of seven, has previously told how she feels overwhelmed as a working mother, and feels guilty for not "being a mother 100 per cent".
In an interview with the Sunday Times Style magazine, the 40-year-old revealed she had both a house-keeper and a nanny to allow her to run her multi-million pound fashion empire favoured by the likes of Kate Moss, Yasmin Le Bon and Kate Winslet.
"I have a housekeeper, and a nanny, though I find that word jarring. I tell her, 'I just want to call you a friend'," she said.
"It is really easy to get wrapped up in it and stress out about the kids, stress out about work. You have to constantly review it and say, is this doable?" she added.
And while she may have enjoyed the privileges of being born into music royalty, Ms McCartney is determined not to let her children take her self-made wealth for granted.
Discussing her own upbringing with Sir Paul McCartney, worth a reported £500 million, she said: "He is an incredibly generous man, emotionally and financially. But we were never spoilt or handed wads of money.
"My parents were first generation [wealthy], they earned their money, they didn't inherit it. I never felt entitled, and I do not feel entitled."
"I'm a worker, and I let me kids know that you work for money, and that if you take them out for pizza, it costs money," she added.
Ms McCartney gave birth to her second daughter Reiley in 2010, and has a five-year-old daughter Bailey, and two sons Miller, seven, and Beckett, four with her husband Alasdhair Willis.
She told the magazine she had ruled out having any more children after she "packed them in my thirties."
But despite designing for the most glamorous women in the world and being named creative director of the Adidas 2012 Olympic Team GB range, she described herself as "embarrassing" on the school run.
With models including Claudia Schiffer and Elle Macpherson joining her at the school gate, she said she looked out for her own designs on the other mothers.
"If someone has my bag, I'm, like, 'Ooh, nice bag', or 'Wow, they're wearing my jacket'. And, you know, how many jackets are there in the world to choose from?" she said.
"I don't go into shops so much now, but I used to find it really daunting. And it is really important to me that we make clothes that bring out the best in women. I want them to come into our shops, throw their handbags on a sofa and get stuck in