David Walliams, 48, is being blasted on social media after a sickening video from 2007 has re-emerged online.
The footage shows him pulling young men's trousers down on stage and appears in a BBC documentary that followed the Little Britain stage show in Australia.
The shocking clips shows the children's author Walliams playing one of his Little Britain characters Des Kaye - a fictional gay former children's entertainer - inviting audience members on stage to take part in a game of 'hide the sausage'.
The disturbing video turns sour when Walliams asks an audience member to join him on stage and gets him to confirm their age.
When one answers 16, David can be heard screeching: "Bingo", he then continues: "You're a big boy for 16 aren't you – that's what I'll tell the judge."
He then plants his lips on the boy's lips and then begins the game of 'hide the sausage', which shows him pulling down their trousers - leading to them being semi-nude on stage as they try to cover their genitals.
David is also seen rubbing up against the boys and laying on top of them.
The performance ends with the actor kissing the man’s bottom as he asks: “Did you enjoy that?”
The clip was filmed as part of Little Britain, Down Under - which followed David and his then-comedy partner Matt Lucas as they toured Australia.
In another part of the documentary, the star tells: “I love cruelty, it’s my favourite thing in the world.
“You’ve got to know the boundaries. That’s funny but if I started exposing their penis or something, it would just be horrible then, it would just be abuse.”
Since the clip has been circulating on social media a number of Twitter users have shared their disgust at the unpleasant set.
One fumed: "Without doubt one of the creepiest/sickest excuses for a 'man' I have ever seen."
A second typed: "Thought I couldn't dislike this 'comedian' more than I do already. Very unfunny. Appalling."
Others added, "He's always been odd but wtf" and "This is wayyyy too far even in 2007 let alone nowadays."
In November 2006 at a Little Britain Comic Relief Gala at the Hammersmith Apollo in London Walliams performed the sketch and pulled down actor Jeremy Edwards' trousers and his underwear.
David said during the performance: "That was not meant to happen. You were not supposed to see gonad. A*** crack, yes. Gonad, no.'
In 2009, he the same to Mark Ronson at a charity event and was forced to apologise to the music producer.
Mirror online have contacted a rep for David Walliams for comment.
