Matthew Wolfenden flashes his bum in Dancing On Ice 2012 rehearsals!

Matthew Wolfenden (Dancing On Ice)An embarrassing wardrobe malfunction resulted in Matthew Wolfenden flashing his bottom during rehearsals for his first Dancing On Ice routine!

Viewers got an eyeful last night when the Emmerdale actor took to the ice with his partner Nina Ulanova dressed in a tight leather outfit.

But The Sun reports that the 32-year-old's trousers fell down during a practise run, a problem blames on the weight loss he's achieved while on the show.

An insider told the tabloid: "Matthew was really going for it on the ice with Nina. All of a sudden his leather trousers fell down and he exposed his bottom to the crew. There was a lot of laughing about it.

"But better it happen in rehearsals than on the actual show."

The source continued: "Matthew's costumes have become really loose since he lost a lot of weight while training for the show. The wardrobe team had to take his trousers in a couple of notches."

Sam Nixon has also had to have the costume department alter his outfits after losing a stone during pre-series training.

Dancing On Ice continues next Sunday at 6.10pm on ITV1.