From a former Apprentice star to a sweethearts looking for a throuple, these are the people having threesomes on camera in a new Channel 4 show.
Open House: The Great Sex Experiment, which is set to air on Friday at 10pm on Channel 4, sees committed couples come to a luxury retreat to test whether opening up their relationships and having sex with other people can strengthen their bond.
While at the retreat, under the guidance of a psychologist, the