So it's no surprise that Kieran Hayler, 25, is getting in some practice with the glamour model's three children, looking like a doting step-dad as they had a family day out on Tuesday.
Having clearly built a strong relationship with the little ones, despite the fact that he only met their mother a few months, the stripper held hands with little Princess Tiaamii as they walked around central London.
Step-dad role: Kieran Haylor looked comfortable with pregnant wife Katie Price's children as they had a family day out on Tuesday
The 34-year-old is clearly body-confident despite her changing figure, wearing a pair of skintight leather trousers and a long green T-shirt.
She added a pair of high top trainers and wrapped a cropped furry black jacket around her shoulders as she stuck close to her kids.
Still body-confident: Katie wore skintight trousers as she wandered through town, as she gears up to have her fourth child
Getting hitched again: Katie and Kieran are rumoured to be having another wedding ceremony on Friday for their friends and family
Kieran may be a fairly new addition to the family, but he seemed completely relaxed around the little ones, chatting away to them as they wandered along.
Although he tied the knot with Katie in Barbados in January after a two month romance, the pair are reportedly set to wed again this week for their friends and family.
According to The Mirror, the couple will have a ceremony in Weston-super-Mare on Friday, swapping it from the planned date of Friday.
Father-to-be: Kieran is gearing up to become a dad, getting in some practice by spending time with Katie's kids
'Once it became public knowledge, she quickly moved everything around. It obviously caused a lot of work for some of the people involved, because weddings are normally planned so far in advance.'
Meanwhile, reports have emerged that she and ex-husband Peter Andre - the father of Junior and six-year-old Princess - could finally be putting their years of arguments behind them to meet face-to-face.
According to heat magazine, Katie and Peter are planning to speak properly in what will be their first proper encounter since December 2011.
Each to their own: Katie had dressed as a pink horse earlier in the day as she celebrated the anniversary of her KP Equestrian products