WATCH: Robbie Williams tells the most bizarre sex story on Graham Norton

The 42-year-old was chatting about his former rebellious days before leaving everyone speechless as he told a very NSFW story.

By Anna O'Donoghue

Last week we welcomed The Graham Norton show back to our television sets with open arms and to make it even better, guests such as Justin Timberlake, Anna Kendrick, Daniel Radcliffe and Robbie Williams were there to open the news series with a bang.

WE'RE BACK! Tonight at 10.35pm we have @jtimberlake @AnnaKendrick47 #DanielRadcliffe and @robbiewilliams on @BBCOne #TheGNShow pic.twitter.com/VRgypzur5x

— Graham Norton Show (@TheGNShow) September 30, 2016

Now if you were tuned in you would have witnessed the stars chat about everything Bake Off to Donald Trump.

But, of course, it didn’t get

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The 42-year-old was chatting about his former rebellious days before leaving everyone speechless as he told this NSFW story.

Norton innocently asked Williams what the weirdest gift he ever received from a fan and really wasn’t expecting Robbie to respond with “herpes”.

Of course the Cork native pushed him to elaborate on the story further, so it went like this - Robbie was renting this castle …

You know we’ll just let him tell you, he tells it better.

Anyone else think that Maureen will appear on the famous red chair pretty soon?