Katie Price's ex husband, Kieran Hayler, has refused to reveal if he's her son Jett's biological father.
The former stripper, 31, has claimed that the ex glamour model, 40, 'forced him to take a paternity test' after the youngster, who is now five, was born.
During an explosive interview with The Sun, Kieran also boldly claimed that Katie cheated on him with footballers Dele Alli and Shane Duffy during their five-year marriage.
Talking to the publication, he said: 'But I'm not going to reveal the results of that paternity test. It was just for me. It's for me and that's it. That's all, maybe one day they'll be released.
'It led me to believe she had cheated on me before I cheated on her. But that's all really I can say because I don't know for certain.'
In May, it was reported that Katie was 'dating' Shane Duffy after her pink Range Rover was spotted at the 26-year-old Brighton footballer's house.
Talking about the reports and the photos, Kieran claimed that his ex would often 'spend the night' there, he added: 'She had gone there one night in lingerie. She'd driven in the car in lingerie and put it on her Snapchat because I wasn't on Snapchat so I couldn't see it.'
MailOnline has contacted Katie Price, Shane Duffy and Dele Alli's representatives for comment.
There is no evidence to support Kieran's bold cheating claims about Shane Duffy and Dele Alli.
This isn't the first time it has been claimed that Kieran took a paternity test to determine if he is the biological father of Jett.
After the five-year-old's birth in August 2013, Katie told OK! magazine that she was 'insulted' by the reports.
She said: 'It's ridiculous and not nice for Jett when he grows up. He's definitely the father, you don't even need to justify it.'
Katie is currently spending 28 days at The Priory after sparking concern when she was filmed rapping 'I love coke' while on holiday.
And earlier this week, Kieran claimed that 'drugs were around' when they partied together - and hinted that her rehab stint could be a 'publicity stunt'.
The former stripper split with the glamour model in April after admitting to cheating for a third time.
He said he's not 'surprised' she's seeking professional help and believes it will help save her career.
© Associated Newspapers Ltd.