The supermodel appeared to suffer something of a wardrobe malfunction as she got to work for Project Runway in a number of jaw-dropping outfits.
However, one in particular revealed a lot more of the 44-year-old than others as she strutted around the busy streets.
Wearing her tresses in a high ponytail, Heidi’s nipples were impossible to miss as they protruded through her tiny, white T-shirt.
Appearing to go braless, the TV beauty also let her toned tum take centre-stage by wearing the cropped number with a high-waisted pair of pale skinny jeans.
Heidi Klum was seen shooting for Project Runway in NYC yesterday
Heidi Klum's nipples were impossible to miss Heidi Klum sexiest pictures Wed, June 7, 2017
Heidi Klum: The supermodel's most sexiest pictures.
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Heidi Klum flashes her nipples on Project runway shoot
Heidi stood out from the crowd thanks to her bright pink trench coat, which she left undone, while opting for towering red heels.
Later in the shoot, the stunner appeared to channel Belle from Beauty And The Beast in a billowing, yellow gown.
Heidi couldn’t resist swishing the busty, strapless number around as she got out of a matching taxi.
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Heidi Klum also seemingly channelled Beauty And The Beast's Belle
Heidi Klum later chose a short metallic dress
She certainly caused a stir as she promoted Project Runway, which she hosts and follows contestants as they try to design and make the best clothes to impress the judges.
It was a busy day for Heidi who later made a beeline for Bookmarc to celebrate a new book about her by Rankin, featuring some very scantily-clad shots.
The leggy star pulled out all the stops in a leg-baring metallic minidress and ruffled heels.