Supermodel Heidi Klum kicked off her 51st birthday celebrations over the weekend with a racy poolside video posted to social media . The former Victoria's Secret Angel marked her latest milestone on Saturday by stripping down to her birthday suit for an Instagram selfie clip, strategically covering herself while lounging by the pool at her home. Pink balloon bouquets surrounded Klum as she protected her face from the sun with a baseball cap and sunglasses, her long blonde hair pulled back in a ponytail.

Billie Eilish shades Taylor Swift's 'psychotic' three hour concerts amid apparent 'feud' Taylor Swift has over 250 pairs of Louboutin shoes for the Eras Tour and they’re $1K each The risque video came after the America's Got Talent judge posted photos from a family birthday brunch with her four children and husband Tom Kaulitz, 34. "I'm super comfortable naked today. To the point where my kids are like, 'Mom, I have a friend coming over,'" Klum told People magazine last year about her penchant for nudity The German native said she'll put clothes on when guests arrive but admitted: "If it's just family, sun's out, bum's out.

" Klum, who grew up going to nude beaches, has long embraced a clothing-optional lifestyle to avoid tan lines for her modeling work. DON'T MISS..

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