Taking to YouGossip last night, the model shared an adorable throwback picture of 7-year-old Princess as a baby, causing some confusion as to whether this was a picture of her newborn daughter.
However the 35-year-old captioned the shot, "Love my princess so much', indicating the picture was in fact of firstborn daughter Princess Tiamii.
The youngster, nicknamed 'runner bean', is the model's second child with third husband Kieran Hayler.
Katie, also known as Jordan, appears to have forgiven Kieran for his affair revelations, which came to light earlier this year.
The mother-of-five posted an emotional message on Twitter last night, which read:
"Behind every beautiful girl; there's a guy who did her wrong, and made her strong."
As well as her daughters, Katie also has 11-year-old Harvey from her relationship with footballer Dwight York, 9-year-old Junior from her marriage to Peter Andre, and baby Jett from her current marriage to model and stripper Kieran.