Sugar Rush star Sara Stewart has banned her children from watching the show.

The actress plays sex-obsessed mother Stella on the hit Channel 4 series, which returns for a new run on Thursday night.

"My own kids don't see it and they won't in future. Sam is 13 and India is 11," Sara told the Sunday Mail. "One of Sam's friend's saw it and he was keen to find out what he was missing.

"But I said, 'If I wasn't in it, I might let you watch it. But on the brink of pubescence, to watch your mother having it off on TV is not psychologically healthy. It could be a scarring experience. These are not images I want you to have'. At that point he went a bit pale and said, 'You have a point, mum'. He doesn't want to watch it."