Millie Mackintosh has admitted to going up a whopping 10 bra sizes "practically overnight" after giving birth to her first child Sienna.
The former Made In Chelsea star, 30, got candid with her fans as she said the boob growth has been a "pleasurable silver lining" as she shared an intimate snap of her breastfeeding her baby girl.
The reality TV star - who welcomed her daughter in May with husband Hugo Taylor - urged fans to "celebrate breastfeeding" in an honest caption.
Sharing the sweet snap of baby Sienna in her arms during her first holiday with her tot, Millie penned: "Let’s celebrate breast feeding!"
She continued: "Yes it’s hard at times but it’s also natural and beautiful and I feel very lucky I've been able to experience it!"
Millie admitted that she's experienced "highs and lows" when it comes to breastfeeding, but admits she wouldn't change it for the world.
She added: "There have been highs and lows but it’s been a big part of my motherhood journey so far and I wouldn't change it for the world."
She went on: "I have to admit going up nearly 10 bra sizes practically overnight has been a pleasurable silver lining!! Such special memories that will stay with me forever!
"I would love to hear your breast feeding stories #worldbreastfeedingweek #letsnormalisebreastfeeding."
The brunette beauty has been very open with her followers about her newfound journey through motherhood, previously telling fans that she found it really tough at the beginning.
Back in June - just one month after she welcomed her bundle of joy - Millie spoke about her troubles with breastfeeding, admitting she had "blistered and cracked nipples" for the first few days.
The reality star said the pain was so "intense" and she came to a standstill as she didn't know how to carry on.
But despite the worries and struggles she faced at the beginning, it seems as though that's all in the past for Millie as she looks like a pro when it comes to mummy duties.
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