Heidi Klum, 51, looks sensational in racy black lingerie and an oversized jacket as she poses on a rooftop

MODEL Heidi Klum looked fantastic as she flashed the flesh in a raunchy black lingerie set underneath her oversized jacket.

The 51-year-old turned up the heat as she posed with pals on a rooftop in just the sizzling underwear set and her coat in order to keep warm.

InstagramHeidi Klum uploaded a very blurry snapshot which showed off her daring lingerie set[/caption] InstagramShe flashed her bra in a close-up shot[/caption]

In a very blurry shot, Heidi could be seen cuddling up to two close pals in the daring ensemble.

With the jacket undone, Heidi let her 12 million followers see what was underneath.

The black bra set could be seen with the star adding a pair of see-through black tights to her racy ensemble.

Heidi later uploaded a more clear close-up shot of her attire.

Having her jacket slightly more closed up, she still flashed a hint of her bra in the snap.

She simply captioned the snaps with a black love heart emoji.

The TV personality always knows how to turn heads when it comes to her fashion. 

The model, 51, is well-known for fashion-based shows including Project Runway.

Before that, Heidi had a smash-hit career as a cover-girl before she attained the title as the first German model to become a Victoria’s Secret Angel.

She appeared on the front of dozens of major publications and has modelled for global designers including Marc Jacobs, Jean-Paul Gaultier, Zac Posen and Vera Wang.

She has hosted and judged Germany’s Next Top Model since it launched in 2006.

Last year, Heidi was slammed for posing in lingerie with her daughter Leni for an advert.

The mother-daughter duo modelled a number of pieces for Intimissimi’s Fall Winter campaign.

Fashion brand Intimissimi shared the pictures and videos from the shoot on their Instagram page.

In one picture Heidi, 51, wowed in a maroon lace bra and matching knickers, while Leni, 20, smiled at the camera while wearing a black set.

Some rushed to the comments section to point out they found it a little strange.

One questioned: “Which normal mom would pose together with her daughter in lingerie?”

Another pointed out: “Dude, that’s your mom.”

“The video is so cringe,” a third added.

GettyGlam Heidi is always known for turning heads[/caption]