These unseen pictures of Justin Bieber are shocking...

The internet nearly exploded after images of a semi naked Justin Bieber and model Lara Stone were released by Calvin Klein and the reaction was quite a mixed one.

While Justin fans declared they’d like to kill Lara for cavorting with their hero some of her fans begged for more snaps.

But we were left wondering what David Walliams, who married Lara in 2010, must think about seeing his wife hugging brash pop brat Justin! Especially as she’s, well, topless.

In a promo ad released for the campaign JB even appears to pull the 31-year-old Dutch model in for a kiss. In one shot she is seen pressing her naked chest against a tattooed Justin as she hugs him from behind and in another even racier snap she is seen mounting him as he lays down with her hand on the top of his jeans!

The black and white six second ad was shared on Calvin Klein‘s Twitter account on Tuesday, and captioned, ‘Drum roll… #mycalvins’. In the video Justin is seated at a drum set, where he shows off some mad drumming skills.

But we reckon that David Walliams would look much more fun in place of Justin, or in place of Lara for that matter!

Check out our hilarious snaps of the comedian mocked up above…

, who welcomed her first child Alfred in May 2013, seemed to be excited by the campaign snaps tweeting: ‘Back at it with @justinbieber! First look at our @calvinklein Jeans + Underwear campaign. #mycalvins #mertandmarcus.’

And 20-year-old hitmaker Justin looked equally pleased with the shots crediting original Calvin Klein pants star Mark Wahlberg in his Tweet: ‘Just spoke to my boy @mark_wahlberg. Honored to be a part of the legacy. @CalvinKlein #mycalvins’

We have to say that Justin does look pretty hot topless and has clearly been working out in preparation to be unveiled as the new face of the underwear giant. And his package is pretty impressive too!

But the reaction was mixed on social media with users saying that they thought the naked pairing was all a bit odd. One user said simply: ‘Um, this is not okay.’

Responding to the official shots of his wife today – before seeing our image – David joked on Twitter: ‘Why has someone photoshopped @justinbieber’s head onto what is clearly my body?’

We are pretty sure he and his wife will be huge fans of our mocked up shots of David instead. He looks really comfortable in both positions, but especially cuddled up next to Justin Bieber.

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