There was almost a different kind of funny business going on in the Gavin & Stacey Christmas special.

Creators Ruth Jones, 53, and James Corden, 41 have revealed they toyed with the idea of having Mat Horne’s character Gavin Shipman cheat on wife Stacey West.

But Ruth said: “It didn’t feel right with the show.”

And Mat, 41, added: “They decided it was too much and it would have been really hard to play that. I don’t think you’d believe Gav would stray.”

The show is set to be a hit with fans
Gavin and Stacey

Jones said: “We obviously wanted to take it 10 years on but didn’t want to sensationalise it and have something major happen.

"We didn’t want to make it like a big explosion, we wanted to keep it as real as possible, true to the characters as possible.

"But also you have to have a narrative drive in there as well.

It's been a long time coming

“We did take a while to decide. We were talking one day, ‘Is Gavin going to have an affair?’ and those ideas didn’t feel right with the show”

Gavin and Smithy pose together

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In the special, Nessa and Bryn, played by Jones and Rob Brydon, sing Fairytale of New York – a 1987 hit for The Pogues and Kirsty MacColl – at a pub in Barry, Vale of Glamorgan.

Asked if it could be a single, Brydon laughed: “It would have to be next year.” Jones added: “It’s been a tradition for Bryn and Nessa to sing together so that was one of the ingredients we wanted to include.”