Heidi Klum

Topless Photo

Ruined by Designer's Hand

8/1/2014 7:36 AM PDT BY TMZ STAFF
Heidi Klum ToplessHeidi Klum nearly posted one of the best photos in the history of Instagram ... if only designer Zac Posen had kept his damn hand to himself.

Klum, wearing nothing but a pair of tiny panties, posted the photo with the caption: "@zac_posen ....I need something to wear for tonight's @projectrunway @lifetimetv."

Zac needs to catch a bad case of carpal tunnel syndrome ... NOW.