Millie Mackintosh accidentally FLASHES a nipple as she shows off her lingerie on Instagram
The 26-year-old reality star took to the social media site last night to show off her new silky sleepwear.
Wearing a lacy camisole and matching knickers, Millie was certainly dressed to impress as she prepared for her trip to the land of nod.
However, as well as showing off her new nightwear, the former Made In Chelsea star also unwittingly revealed her full right breast.
Posing in her bathroom with one knee raised to emphasise her toned legs and bottom, Millie seemed completely unaware of her unfortunate wardrobe malfunction.
It appears the gorgeous set was a gift from model Rosie Huntington-Whiteley, who designs a range for M&S.
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