Simon Cowell admits girlfriend Lauren Silverman "calls the shots".

Simon Cowell and Lauren Silverman

Simon Cowell and Lauren Silverman

The 56-year-old music mogul - who has two-year-old son Eric with the brunette beauty - has a very stressful life thanks to his reality shows in the UK and the US as well as his running his own record label and Lauren helps him get the work/life balance right.

Speaking on TV show 'Lorraine', Simon explained: "Yes [Lauren calls some of the shots] but for all the right reasons - if you're not careful you can almost burn yourself out - you've got to have that separation."

The pair have been dating since 2013 and Simon says this relationship is different from his others as he previously always made all the decisions.

And when he's in America, Simon, 56, says little Eric plays with Robbie Williams' children, Teddy, four, and 23-month-old Charlie.

Simon explained: "His [Robbie's] kids play with Eric, they come over for swimming lessons and stuff. Robbie I saw the other day and he's in a really great place now. His wife is an amazing person."

Simon also said about what manners he wanted to teach Eric.

He revealed: "Right from the beginning I thought I'm going to teach Eric how to share, so I said 'Can I have some of your milk' and he went 'no' and I said 'You have to share everything Eric' and it took me about a week."

And by spending time with his daddy on set, Eric is learning the ropes of television.

Simon added: "He does [know when to be quiet] but what's funny is he gets to see me watching the shows sometimes and when he likes something he's a really good barometer, so he's in training.