Actor Brad Pitt says he and his actress wife Angelina Jolie were keen to have 12 children together but stopped at six because their family life is already chaotic.

The actor duo have children Maddox, 14, Pax, 11, Zahara, 10, Shiloh, nine, and seven-year-old twins Knox and Vivienne.

"Listen, Angie and I were aiming for a dozen children, but we crapped out after six," Pitt told Daily Telegraph newspaper, reports femalefirst.co.uk. 

The 51-year-old actor said that their family life can also be chaotic at times.

"It's a lot of love, a lot of fighting, a lot of refereeing, a lot of teeth-brushing and spilling... Chaos, total chaos. But so much fun," he said.