Katie first fell out with Posh years ago after she reportedly sang 'Who Let The Dogs Out' at the glamour model during a night out back in the day.
The pregnant star, who is expecting her fifth child, even said she'd even heard Victoria once avoided getting on the same flight as her - but she's over it.
Speaking on her FUBAR Radio show, Katie said: "She would avoid me. Years ago, I was checking in on flight and, from what I was told, apparently she found out I was on the same flight in First Class and she changed hers to a later one.
"I don't think she gives a sh*t about me. I'm just a Nemo in a big sea, whereas she's a big fish."
Katie also spoke about the time she attended the Oscars in the US with her then-husband Peter Andre, who approached Victoria in an attempt to clear the air.
She said: "Pete went up to her at the Oscars and she said, 'It is what it is'. I don't know what she meant but I'm an adult and I don't care.
"You can't knock her - anyone who knocks her is jealous. She's worked hard and by being with David and being in a famous girl band, that's how it happened.
"Victoria looks and is amazing."
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