Robbie Williams has admitted that if he started drinking again he'd end up being unfaithful.

The singer, 38, became a father last month after wife Ayda gave birth to their first child, Theodora Rose.

Take That star Robbie told Shortlist magazine: "It's a hundred times easier when you don't drink, and I don't drink.

"If I drank, we'd literally be f*****. If I drank, I could not keep it in my trousers at all."

Rob also told the mag that there should be a "gold ring" for showing restraint.

Asked how he spurned approaches, he said: "I always have my wife with me. Always."

He added: "I haven't missed playing around but I'm still a guy.

"This will be an ongoing project. Feels unnatural - but so far, so good."