Channel 4’s social experiment series, Open House: The Great Sex Experiment, moves into the second episode of its third season on Friday, May 16, 2025, at 10:00 PM GMT. The program follows couples exploring non-monogamy.
The episode features Welsh couple Jonny and Sarah, who are attempting to open their relationship but encounter difficulties overcoming their nerves at the retreat. Elsewhere, Tanith and Paul must address the reality that their partners had sex with multiple people on their first night. The series documents committed couples as they consider whether open relationships and sex with other people could strengthen their bond.
