Zac Posen Grabs Heidi Klum's Bare Breasts in Topless Instagram Picture

They have forged a close friendship working as fellow judges on Project Runway.

And Heidi Klum showed just how intimate she and Zac Posen have become - as she posed topless, with his hand over her bare breast for an Instagram snap.

The 41-year-old supermodel shared the image on Instagram on Thursday, just hours before their hit Lifetime reality competition series was set to air. 

Wearing nothing but a petite pair of pink briefs, Heidi once again made it clear that she is very comfortable in just her own skin.

The German born beauty's long tanned legs and washboard stomach were on display as she stretched herself out and flung an arm in the air with her head of blonde hair tossed backwards.

Designer Zac pulled a cheeky face as he gripped the blonde around the waist.
His left hand saved Heidi's modesty in the otherwise racy snap.
'I need something to wear for tonight's @projectrunway,' she complained.

Heidi - who has daughters Leni, 10, and Lou, four, plus sons Henry, eight, and Johan, seven - seemed to take no issue with the idea of presenting this photo to the public.

And it's not the first time she has shared her topless body with the internet, either.
The America's Got Talent judge has developed quite a reputation for herself when it comes to posting Instagram photos that toe the line of appropriate.

She has decorated her social media profile with images of herself sunbathing with nothing up top, plus another of her cuddling a Bora Bora palm tree.

Heidi, whose career has largely involved quick changes in and out of different outfits in rooms full of stylists and design crew, revealed in a 2010 interview with Tatler magazine that nudity is no big deal to her.

Heidi explained her breezy attitude towards having no clothes on, saying she 'grew up in a very easy-going family where [her] parents were always naked.'

'My parents are still naked. I mean, it’s not like we’re hippies and we run around naked, but if they happened to be in their room changing or something or someone comes out of the shower, they’re not, like, 'Oh my God. No. Close the door.'' she went on.

Heidi, who was married to Seal at the time of the interview, said that her children 'see their parents naked all the time. We are not ashamed.'

The bold bombshell is currently dating 27-year-old art enthusiast Vito Schnabel, and the pair were seen frolicking topless together at a beach in Tulum, Mexico, in April.

Seal, meanwhile, has recently been pictured smooching a new blonde beauty as he moves on from their seven-year marriage.

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