In the images, Justin can be seen enjoying himself with a mystery brunette, at one point 'dancing up against her and in another wrapping his arms around her as they whisper to one another'.

According to a source on the scene, the pair were close for most of the night, much to the humiliation of his wife, Jessica Biel, 32.

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The actress has chosen to ignore the pictures, returning to her Twitter page on September 3rd to tell followers: 'Starting a story with "I had the craziest dream last night" is a great way to tell me it's cool to immediately tune out.'

She then thanked a fashion editor for their recent article, before falling silent again.

This isn't the first time that Justin 'trousersnake' has been accused of cheating. In 2010, a US report claimed he had a three day affair with actress Olivia Munn, and three years later he was rocked by reports he had trysts with a blonde woman and Brazilian singer Thaila Ayala.