Nicola McLean and David Van Day stripped to their underwear to complete the Celebrity Chest challenge.

The glamour model shocked the former Dollar singer when she shed her clothes, before he swiftly followed suit after first expressing shock at her skimpy bikini.

He said: "We're cleaning a car, we're not going you know... Alright, if you're doing it I'm stripping too," before throwing off his clothes to tackle the task - which saw them have to wash a filthy car to locate numbers to crack the codes for the combination locks on the chest.

The pair soon realised one of the numbers they had unveiled was a dud and that there were more than five combinations hidden under the dirt, prompting them to completely clean off the mud to reveal all the codes before tackling the chest.

After passing the challenge, David - who has clashed with Nicola several times during the course of the show - playfully slapped her on the behind as they returned to camp.