Mike Smith
Here’s everything you need to know about Open House: The Great Sex Experiment Season 3, including the premiere date, where to watch, cast, episodes, and more.
How to watch Open House: The Great Sex Experiment Season 3 outside the UK on Channel 4
To watch Open House: The Great Sex Experiment Season 3 outside the UK, use a reliable VPN and connect to a UK server. Once connected, visit Channel 4’s free streaming platform, All 4, and create a free account to start watching. This allows you to bypass regional restrictions and access all new episodes from anywhere.
- Subscribe to NordVPN
- Install the VPN app on your device.
- Connect to a UK-based server.
- Open Channel 4 website or launch its app, then login or sign up for a new account.
- You are all set to watch Open House: The Great Sex Experiment Series 3 from anywhere restriction-free!
Open House: The Great Sex Experiment Season 3 (2025) Synopsis
Channel 4’s boundary-pushing reality series returns with Open House: The Great Sex Experiment Season 3, premiering in 2025. In this social experiment, committed couples check into a luxurious retreat to explore whether sexual encounters with other people can strengthen their relationship. Set against the backdrop of a stylish estate, the couples are guided by non-monogamy expert Effy Blue, who offers emotional support, tasks, and advice as participants open their relationships and test emotional boundaries. Each episode captures both the psychological depth and sensual intensity of exploring open love.
When Does Open House: The Great Sex Experiment Season 3 Premiere?
Open House: The Great Sex Experiment Season 3 premieres on Friday, May 9, 2025, at 10pm BST on Channel 4, and episodes will be available to stream for free on All 4. New episodes air weekly every Friday night.
Where to Watch Open House: The Great Sex Experiment Season 3
You can watch Open House: The Great Sex Experiment Season 3 on Channel 4 and stream it for free on Channel 4’s on-demand platform, All 4. All 4 is a free streaming service that lets viewers watch full episodes on-demand with ads by creating a free account—no subscription required.
Open House: The Great Sex Experiment Season 3 Episodes
All episodes premiere weekly on Channel 4 at 10pm:
Episode 1 – Premieres: 9 May 2025
Chloe and Mark, childhood sweethearts who’ve only ever had sex with each other, decide to open up their relationship. Chloe is curious about her attraction to women, while Mark grapples with letting go of exclusivity.
Episode 2 – Premieres: 16 May 2025
Jonny and Sarah, a Welsh couple, revisit their two-year-long attempt to explore non-monogamy. Meanwhile, Tanith and Paul deal with jealousy and emotional fallout as their partners Mark and Chloe take full advantage of the experiment.
Episode 3 – Premieres: 23 May 2025
Episode 4 – Premieres: 30 May 2025
Episode 5 – Premieres: 6 June 2025
Episode 6 – Premieres: 13 June 2025
Open House: The Great Sex Experiment Season 3 Cast
- Effy Blue – Non-monogamy coach and resident expert
- Mike Miller – Series narrator and voiceover
- Jess Miller – Herself, participant support
- Couples and Residents – Including Mark, Chloe, Jonny, Sarah, Tanith, Paul, and others joining the experiment each week
Can You Watch Open House: The Great Sex Experiment Season 3 Online for Free?
Yes, you can watch it for free using Channel 4’s All 4 streaming service. You need to create a free account, and it is ad-supported.
Is Open House: The Great Sex Experiment Suitable for All Ages?
No. This series is not suitable for all ages. It includes explicit content, nudity, and adult themes surrounding open relationships and sex. Viewer discretion is advised. In the UK, it typically airs with a TV-G or 18+ rating, depending on the episode’s content.
FAQs
What is the format twist in Season 3?
Season 3 introduces a new retreat location, new residents, and a new relationship coach alongside Effy Blue. Couples face more intense challenges and psychological games that test emotional resilience.
Has Open House received complaints or controversy?
Yes. The show sparked viewer complaints after a group sex scene aired, leading some to threaten reporting it to Ofcom. Despite this, Channel 4 confirmed the show’s renewal due to its high ratings and bold format.
How many episodes are in Season 3?
Season 3 is expected to feature six episodes, based on previous seasons. Each runs for approximately 46 minutes.
Why do couples participate in the show?
Couples often join the show to test emotional and sexual boundaries, build trust, explore bisexuality, or reignite passion in long-term relationships.
Open House: The Great Sex Experiment Season 3 Trailer
While there isn’t an official trailer for the season yet, you can check out this:
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