George Clooney has reportedly told actor Brad Pitt to 'leave his kids at home if he comes to visit.

George - who is close friends with his 'Ocean's Thirteen' co-star - is famous for hosting parties for his showbiz pals at his Italian villa, but insists kids aren't welcome.

George joked to OK! magazine, "Some of the cast will come and visit me at my villa again. 

"Brad will, but I've told him he can't bring his 15 children."

The 'Fight Club' actor has three adopted children and an 11-month-old biological daughter, Shiloh, with his partner Angelina Jolie, but despite his friend's foray into fatherhood George has no desire to become a dad.

The 45-year-old star said, "I'm so selfish and I get nervous around kids, and I know I'm not ready for that kind of life.

"I've settled into a very comfortable lifestyle and I really don't want to change things.

"I've learnt enough about myself to know that my work is the main thing which drives me and whatever woman comes into my life is going to have deal with that, which isn't easy."