Heidi Klum just got an eyeful of boobies -- and some anti-Heidi messages -- when two topless women ran onstage during the finale of "Germany's Next Top Model."
It was quite a scene ... the bare-breasted women got right in Heidi's face ... exposing messages written on their chests, like "HEIDI HORROR PICTURE SHOW."
At least one security guard got a handful of underboob while dragging away one of the women ... perks of the job.
Heidi seemed unfazed by the interruption -- and it's unclear what the protesters' beef was with her ... or shirts.
But who cares? BOOBIES!
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