Kate Ferdinand has revealed Rio's kids asked her when she's going to tell her son Cree she's not their mum.
Rio's children Lorenz, 16, Tate, 14, and Tia, 12, are from his previous marriage to his late wife, Rebecca, who tragically died in 2015, aged 34 from breast cancer.
Kate, 32, speaks openly about her blended family on her podcast and has now shared the moment when her stepdaughter Tia asked if she thought Cree, two, knew who Rebecca was.
The former TOWIE star said: "The kids said to me: 'Do you think Cree knows that you're not our mum?' and I said: 'I think he does, because we call her Mummy Beckby.'"
Kate continued: "Tia said [to Cree] 'that's your mummy, but who's my mummy?'"
Explaining Cree answered: "Mummy", the reality star admitted the family still had a "way to go".
Kate is now 34 weeks pregnant and admitted she is feeling emotional about Rio's late wife as she prepares to give birth.
The mum-of-one has spoken candidly about how she felt when she first moved into Rio's, explaining that a lot of his first wife's belongings were still there.
The former reality TV star met the football pundit through mutual friends while holidaying in Dubai in late 2016.
After confirming their relationship in April 2017, Kate quit her role on TOWIE to focus on her romance with Rio and his three children.
However, the influencer admitted to her husband on her Blended podcast: "Three years ago it was s**t after s**t after shit, so that little thing that might not be that big tips you over the edge.
"Whereas now we're quite consistent in everything else and that little thing is quite funny because I'm secure but what used to happen is I was dating you, we might have been engaged but I wasn't your wife so whenever you talk about your wife everyone would say Rebecca. So I kind of felt I was this side woman, just here..."
Rio interrupted, clarifying: "Side chick, yeah? You felt like a side chick."
Kate then joked: "I was a bloody good side chick I was looking after the three kids and doing everything.
"But I felt like a bit of a side chick because everyone would say: 'Your wife, your wife' so now I feel quite confident I am your wife, we're secure and the wedding changed a lot for me."
