Rod Stewart's children are taught the "values of life" through chores.

Rod Stewart

Rod Stewart

The 'Do Ya Think I'm Sexy?' hitmaker's wife Penny Lancaster says she and the 71-year-old singer try to be "strict" with their children, sons Aiden, five and Alastair, 10, and get them to work for their pocket money.

She said: "Yes, we have the money. If ever our boys say I want this or that, we are in the ­position to give them whatever they want. But that's not how I believe we should teach children the values of life.

"Instead, Rod and I say, 'Well, you'll have to put it on your birthday list'. I try to be strict with the children and they have to do chores around the house to earn money and save up. They need to understand that our lifestyle is not the norm. They need to know they are very lucky - and they do, because I constantly tell them."

And Penny has opened up about the struggles she faced to have her two sons, including a heartbreaking miscarriage and three tough rounds of IVF.

She explained to the Daily Mirror newspaper: "After my miscarriage I feared I'd never have children. But when I looked into it, the statistics were high and sadly it's quite common. The next time we tried, the following month, it was successful and Alastair came along.

"We decided to have another baby after we got married but it wasn't so easy because I was of a certain age and had crossed over the threshold where your fertility ­plummets. It took three attempts of IVF before Aiden was born. IVF is very tough and I don't think I could have gone on any further than I did. It's very trying, physically and emotionally."