Katie - aka Jordan - had the operation, which is her seventh boob job, last month after flying out to Brussels.
Last night, Katie posed for a selfie while relaxing at home and her dramatically smaller chest can just about be made out underneath her T-shirt.
Posting the picture on her You Gossip site, the mum-of-five told fans that she is now looking forward to shooting her new 2015 calendar.
Katie - who is famed for her ample assets - said: "Absolute love my new boobs [sic]. Anyone wanting new boobs Dr Plovier at Be clinic Brussels is the best. It's my second boob job [there], I love them woooo! So now I can shoot my new calendar with new boobs."
In October, Katie spoke about her boob job saying that she was excited to change her image for her calendar.
Previously, she had also revealed that she would be selling the implants - once removed - to charity.
Katie told The Sun: "I've got more pairs in [my] safe. I can even sign them with a marker pen. You could have these very breast right from inside me in a few weeks."
Last week, Katie appeared in public for the first time since her boob job while launching her new perfume Kissable. However, the star made sure to cover up her smaller breasts with a giant pair of lips.
Clearly she now feels ready to show them off to the world!
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