The former Made In Chelsea star turned 25 on Saturday (26 July) and made sure the day was filled with all her favourite things - yoga, cake, friends and fine dining.
But she also got a surprise boob squeeze from randy rapper Pro Green, aka Stephen Manderson, 30.
Taking to her official Instagram account to keep her followers updated, she posted a cheeky photo of her hubby grabbing both of her boobs in his hands!
Alongside the snap, she wrote the caption: "Say squeeze."
And rather than getting a slapped wrist, Millie can't stop smiling!
While some of her fans were quick to criticise the picture and Professor Green's ungentlemanly act, most saw the funny side.
Millie also enjoyed a rather more civilised lunch at the River Cafe, where she treated herself to a (tiny) slice of chocolate cake.
She then enjoyed an "amazing and perfect dinner" at Kurobuta London alongside friends, including MIC's Rosie Fortescue.
The Celebrity MasterChef star kicked off her birthday with a yoga session at the Shard - as the rich and famous do! - and ended with a boob grab...
Sounds like one hell of a day! Happy birthday Millie!
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