A Welsh couple took part in new Channel 4 show Open House: The Great Sex Experiment but it almost caused them to split. The TV show gives couples the chance to open up their relationships to new sexual experiences and to see if relationships can survive while being sexually involved with other people.
Nathan and Mady from Swansea entered the experiment to have their first threesome and see if they could open up their relationship to involve a third sexual partner. Originally it was Mady who was most worried that her jealousy would ruin the threesome experience, however it ended up being Nathan who felt left out.
After meeting Precious at a social at the luxury retreat where the experiment is taking place, they invited her to stay the night in their bedroom. Nathan had high hopes, saying: "It's going to be so good, more women, more pleasure." But he did not enjoy the experience.
