Semi-naked Heidi Klum seduces toy-boy

Is this the sexiest fast food advert ever? Semi-naked Heidi Klum seduces toy-boy with juicy burger in new Carl's Jr commercial

American burger chain Carl's Jr are known for persuading beautiful models and actresses to advertise their latest inventions. 

Audrina Patridge, Padma Lakshmi, Kim Kardashian, Emily Ratajkowski and Kate Upton have all licked their lips lasciviously for the camera before tucking into a calorific meat and bread snack. 

The juxtaposition of their toned, slim physiques might jar with the meat juices dripping down their chins but these commercials have proved to be a winning formula for the chain. 

And now they've landed their biggest name to date in the form of stunning supermodel Heidi Klum. 

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Delicious: Heidi Klum scoffs Carl Jr's new Jim Beam Bourbon Burger in the latest and sexiest advert for the American chain 

Unsurprisingly, the 39-year-old's commercial for the Jim Beam Bourbon Burger is probably the sexiest installment yet... and perhaps the hottest in the history of fast food commercials.  

In it, the mother-of-four strips down to skimpy negligee and shows off her cleavage as she gets to grip with the southern inspired new addition to the menu. 

Klum plays a seductress in a recreation of the famous Mrs Robinson scene from Dustin Hoffman's movie classic The Graduate.

Hungry yet? Heidi tucks into the delicious looking snack with gusto and insists she does eat burgers (and fries) regularly) 

Mouthful: The feisty German model gives it her all in the short film 

Two-pronged attack: Heidi proffers the juicy burger to the young man with her cleavage prominently on display 

'Basically, I am Mrs. Robinson and I am seducing this cute little boy... with my burger,' Heidi said in a behind-the-scenes video.

'I shove the burger in his mouth in a sexy way,' she adds. 

The commercial's creative director Mick DiMaria explained: @We're basically taking that scene and foodifying it.' 

Powerless to resist: The idea behind the commercial was to pay homage to Dustin Hoffman film The Graduate but with, er, burgers 

Fantastic form: To think Heidi maintains this figure and eats burgers and fries... 'tis wondrous 

Eat your heart out, Mrs Robinson! Klum is playing Anne Bancroft's role from the 1967 classic 

Heidi looks incredibly fit, toned and healthy in the revealing ad but guess what? She insists she keeps this body while still enjoying burgers and fries copiously. 

Heidi insists: 'I do eat a lot of burgers, I do also eat a lot of fries.'

Because a celebrity would never advertise anything they don't consume themselves. 

'Mrs Robinson, you're trying to seduce me!' Could there be a tastier sight than Heidi and her bap based patty? 

Burger me: Heidi is the latest and greatest in a long line of Carl's Jr beauties 

Bit of a mouthful: Heidi struggles to get the gargantuan snack down 

There's no nutritional information available on the Carl's Jr site about the new burger, though obviously it is glazed with Jim Beam and there's bacon and cheese in there as well as salad and beef. 

Burgers at the popular chain range between 600 to a whopping 1000 calories, though there are healthier options like the carb-free burger at 500 calories and white meat sandwiches. 

A woman in Heidi's age range (31 to 50) needs between 1,800 to 2,200 calories daily so she no doubt balances these treats with a fair few salads. 

Saucy! Klum smears Jim Beam sauce on her face as she devours the burger 

Her real interest: Klum's Mrs Robinson is more interested in the burger than the boy 

'I eat a lot of burgers, and a lot of fries!' Radiant Heidi reveals her diet cheats in the behind-the-scenes video