The supermodel, 41, uploaded the rather risqué picture to Instagram which shows her wearing absolutely nothing but a tiny pair of pants. Luckily for her, her modesty is somewhat protected by designer Zac Posen's well-placed hands.
Heidi's caption said she needed an outfit for that night's Project Runway taping.
Well, yes, because she can't go on TV naked…
We think it's safe to say from this photo that Heidi is very comfortable with her body and not afraid to show the world!
Heidi and Zac are colleagues on Project Runway.
While German model Heidi is the longstanding host, designer Zac joined as a judge during series eleven, which premiered in 2013.
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