Dermot O’Leary shocks Alison Hammond by walking off This Morning before the end of the show

THIS Morning’s Dermot O’Leary shocked his co-host today when he walked off set.

The 47-year-old star surprised Alison Hammond as he said he was so desperate to the loo he couldn’t wait – and made a run for it.

She and Dermot had been tasting huge glasses of juice with health expert Jason Vale when he was suddenly overwhelmed by the need to use the toilet.

He said: “Let’s go to the break as quickly as possible so me and Alison can go to the toilet.”

Then, before the show had even ended to make way for adverts, he got out of his seat and wandered off.

He was back in his seat three minutes later with one observant fan tweeting: “Dermot back from the loo.”

Dermot, who has hosted This Morning alongside Alison since January, also addressed The Sun’s story that he had proved too boring for Who Do You Think You Are?

He explained that he had applied but got knocked back – before bringing on his parents to talk about the family live from Wexford in Ireland.

Demot insisted the O’Learys weren’t really the O’Drearys and insisting they were a family of adventure-loving seafarers.

He said: “They actually researched my family for about three months. They came back and said, ‘There’s just not enough interesting stuff about your family’.

“Wexford is a port town, and my family are all seafaring folk. I have it on good authority that two of them went to America.

“One of them was a police officer and the other was a judge and they both got killed by the Mafia in the 30s.

“They couldn’t find any record of this. I was like, ‘What are you on about?’ We’ve been everywhere, we’re a family of sailors.’”