Channel 4 aired a brand new show Open House: The Great Sex Experiment on Thursday and viewers watching couldn't believe some of the scenes that aired as part of the series.
The show involves a host of committed couples staying in a luxury retreat to test whether opening up their relationship to other parties and having sex with other people can strength their connection.
At the retreat, the couples meet with a psychologist and explore whether they are ready to try an open relationship as they meet several sexy singletons.
Throughout the series, the couples and singletons are given tasks to complete to push the committed participants towards having sex with someone other than their partner.
The Channel 4 show, which is currently in its second series, aired its steamiest episode yet on Thursday when one couple hosted an after-party which resulted in a group of 15 people having sex with one another.
Channel 4 viewers were left stunned by the racy antics as one tweeted: "Film on Sky finished and tv pinged onto #OpenHouse what fresh hell is this?!? I can't believe this is on normal TV."
"I'm too British to have an orgy. What do you talk about? Is it okay to laugh a lot? Is it okay to take a break and make a sandwich? #OpenHouse," another shared while a third remarked: "What mad is these people have kids...and their kids are gonna see this #OpenHouse."
Another joked: "I must report this filth to Ofcom. I'd better watch next week to see if it gets any worse #OpenHouse."
"I hope someone comes in and gives that room a deep clean before anyone else sleeps in there #OpenHouse," someone else added.
The night began to heat up for the couples when Chanice and Richardo, who have been together for eight years, invited everyone back to their room for an after-party.
Richardo commented: "We just invited everyone at the party to the after party. There are so many experienced people. It's just like...take us in."
After Richardo shook off his apprehensions, he and Chanice ended the party by having sex in front of the group.
