Stacey Dooley says she can understand why some people choose polyamorous relationships, after making a documentary on the issue.
The Strictly Come Dancing champion's new series, Stacey Dooley Sleeps Over, features one episode focused on a three-person relationship.
Dooley, 32, who is in a relationship with Strictly dancer Kevin Clifton, told BBC Radio 2: "I think you have these preconceived ideas and probably negative connotations about what kind of people you're going to meet.
"I've watched loads of films on polygamy before and you've always felt sorry for one or two people."
Stacey Dooley attending the National Television Awards 2019 held at the O2 Arena, London. Photo credit should read: Doug Peters/EMPICS
Stacey Dooley attending the Only Fools and Horses the Musical opening night at the Theatre Royal Haymarket. Tuesday February 19, 2019. Photo credit should read: Ian West/PA Wire
Claudia Winkleman (left), Stacey Dooley, and Tess Daly (right) with the award for best Talent Show in the Press Room at the National Television Awards 2019 held at the O2 Arena, London. Photo credit should read: Doug Peters/EMPICS
File photo dated 14/05/17 of Strictly Come Dancing winner Stacey Dooley who has said has said that Strictly Come Dancing offered a welcome escape from the pressures of her job.
Stacey Dooley and Aljaz Skorjanec attend the photocall for the 'Strictly Come Dancing' live tour at Arena Birmingham on 17 January 2019 in Birmingham, England. Picture date: Thursday 17 January, 2019. Photo credit: Katja Ogrin/ EMPICS Entertainment.
Stacey Dooley (centre) and Aljaz Skorjanec perform during a photocall before the opening night of the Strictly Come Dancing Tour 2019 at the Arena Birmingham.
Strictly Come Dancing finalists Stacey Dooley and Kevin Clifton leave BBC Broadcasting House in London after appearing on the Chris Evans radio show.
Strictly Come Dancing star Stacey Dooley arrives at Blackpool Tower Ballroom for rehearsals ahead of Saturday evening's show.
Stacey Dooley arriving at the red carpet launch of Strictly Come Dancing 2018, BBC Broadcasting House, London. Photo credit should read: Doug Peters/EMPICS
Stacey Dooley in the winners photo area at the Virgin British Academy Television Awards (BAFTA) held at the Royal Festival Hall, Southbank, London. Photo credit should read: Doug Peters/ EMPICS Entertainment
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But she said of filming her new series for the W Channel: "You go into this house, they're all beautiful, they're all young, they're all articulate, they're all bright, they're all kind of dignified and they very clearly explained why this worked for them."
Asked whether she was tempted to follow in their footsteps, she told Angela Scanlon, who is sitting in for Radio 2 host Dermot O'Leary: "At the start you're always like 'No, no, definitely not, absolutely not."
But she said, after filming and chatting to crew: "We were all thinking, I could sort of understand, comprehend why [it works] for some people."
Dooley also said she has filmed her dance with Clifton for the launch of the new series of Strictly.
The pair will be dancing together when this year's series starts on September 7.