Kieran Hayler has claimed that his daughter Bunny always returns from Katie Price 's house dirty and covered in make-up.
The former stripper shares Bunny, four, and Jett, five, with Katie, and says he's a much stricter parent than she is.
The 32-year-old, who is now dating Michelle Pentecost, says it's easy to tell when Bunny has been to Katie's house because she comes back "with a browner face than usual".
He told new! magazine: "When they're with Kate, they're allowed to do whatever they want, whereas I'm the stricter parent.
"It's the same with Pete [Katie's first husband Peter Andre]. He's a lot like me. I just want them to know there are certain boundaries."
Katie, who is also mum to Harvey, 16, Junior, 13, and Princess, 11, once said she wanted her children to be feral.
Speaking at the launch of her new kids' clothing ranges, the 41-year-old said: "All I'll say is. I'm my parent this side, and the other side parent's eating ethic is very different to mine."
Katie turned towards daughter Princess as she said: "Your side, dad's side eat different to my side."
She added: "[They are] completely different. They're very strict, I'm very laid back.
"I'd rather my kids be quite feral, get to know, work things out themselves. Eat what you like, try what you like. Rather than worry about if it puts on weight, and this and that. Trust me.
"But then at the same time. When kids' parents split up they learn to adapt."
When asked if her "feral" comments were accurate, Kieran laughed and agreed, saying the children are "constantly barefoot".
He added: "I'll bring them in and they've got black feet. Jett's always got black toenails... At Kate's they get to go straight into the garden and the woods and play."
Kieran said he has no problems with the children spending time at Katie's house, which has been dubbed a 'mucky mansion'.
He said he's lived in the house and that it's "fine", but that he does worry about the kids not wearing shoes while they're playing outside.
He added: "But they're kids at the end of the day. The house isn't dangerous - it's just the kids run everywhere and anywhere."
Mirror Online has contacted Katie's representatives for comment.
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