Two women have claimed they were raped by their husbands during filming of the show, while a third has alleged a non-consensual sex act, prompting Channel 4 to launch a review into its welfare protocols.

The women, who have not been named, have raised serious concerns about the welfare and safety of female participants on the programme, which is also a hit in the US and Australia.

The women, who have not been named, have raised serious concerns about the welfare and safety of female participants on the programme, which is also a hit in the US and Australia.