NAKED Attraction might have been on air for five years - but its round-up of most X-rated moments has tipped some viewers over the edge.
The series is currently airing eye-popping compilations of some of its extreme and shocking scenes.
They include men tinkering with some of the most intimate piercings imaginable - and boasting about their oral sex skills.
Other moments show a woman licking cream off a potential partner and a couple humping in a budget hotel.
One girl was seen looking at one bloke's body saying approvingly: "Nice bit of girth on that penis."
It all led one viewer to remark: "Why on earth is Naked Attraction a thing? Honestly I'm sex positive but someone needs to cancel this s***."
Another boggled: "Still cannot believe #NakedAttraction got commissioned! 😂."
The show, one of Channel 4's highest-profile programmes, sees contestants picking partners based on their naked bodies.
In a twist on the dating genre, screens reveal the line-up from the feet up, meaning pickers see the people's privates before their faces.
Last night's episode turned to some of the show's success stories - where relationships were formed.
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Host Anne Richardson explained: "Everyone knows here at Naked Attraction we don't like beating around the bush.
"We've been stripping back the clothes and the filters for a good few years now.
"We kick off every date where it normally ends - if you're lucky... naked.
"We've had some seriously kaw-droppeding moments so we thought it was time we romped through our X-rated archives and celebrated our very best naughty bits.
"Tonight is all about the times the pickers got it spot-on. Yes, these are the success stories that led to to relationships and even dry-humping."