Claire Skinner has described her real-life romance with Outnumbered co-star Hugh Dennis as "a lovely little life surprise".
The pair played frazzled parents Pete and Sue Brockman in the hit BBC One sitcom.
Asked about the relationship, Skinner told ITV show Lorraine: "We are (together).
"It's a lovely little life surprise. It's a lovely thing."
Dennis previously confirmed the relationship to the Mail on Sunday, saying: "I am very, very happy, we are so very happy."
The pair, who did not start dating until after Outnumbered had finished filming, have both had previous marriages.
The Outnumbered cast through the years
The Outnumbered cast through the years
Ramona Marquez and Daniel Roche attend The English National Ballet's 'The Nutcracker' pre performance Christmas party, St Martin's Lane Hotel, London.
The children from Outnumbered, (left to right) Daniel Roche, Tyger Drew-Honey and Ramona Marquez dress up as the Monkees to raise awareness of the Children in Need campaign.
Hugh Dennis arriving for the BAFTA television awards at the London Palladium.
Actor Daniel Roche aged 10, who plays Ben in BBC's Outnumbered, holds a British toad at Trent Park in Cockfosters, London, as WREN (Waste Recycling Environmental Limited) awards 2m to nature charities from its 10M Biodiversity Action Fund.
LONDON, UNITED KINGDOM - NOVEMBER 18: (EXCLUSIVE COVERAGE) Tyger Drew-Honey, Ramona Marquez and Daniel Roche of TV series Outnumbered backstage during BBC Children in Need on November 18, 2011 in London, England. (Photo by Jon Furniss/WireImage)
(l-r) Daniel Roche, Ramona Marquez and Tyger Drew-Honey from Outnumbered arriving for the 2011 National Television Awards at the O2 Arena, London. (Photo by Yui Mok/PA Images via Getty Images)
(L-R) Tyger Drew-Honey, Ramona Marquez And Daniel Roche Arriving For The 2011 National Television Awards At The O2 Arena, London. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - DECEMBER 12: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME. MANDATORY CREDIT PHOTO BY DAVE M. BENETT/GETTY IMAGES REQUIRED) Actor Daniel Roche poses with the best sitcom trophy with co stars actor Tyger Drew-Honey and actress Ramona Marquez for the tv Programme "Outnumbered" at the British Comedy Awards on December 12, 2009 in London, England. (Photo by Dave M. Benett/Getty Images)
EXCLUSIVE TO PRESS ASSOCIATION. Presenters Terry Wogan and Tess Daly with the children from Outnumbered (left to right) Tyger Drew-Honey, Daniel Roche and Ramona Marquez during the BBC Children In Need Appeal 2011, at the BBC Television Centre, Wood Lane, White City, London.
File photo dated 25/1/20112 of the cast of Outnumbered Tyger Drew-Honey, Hugh Dennis, Ramona Marquez, Daniel Roche and Claire Skinner with their award for Situation Comedy, backstage at the National Television Awards 2012 . Skinner has described her real-life romance with co-star Dennis as "a lovely little life surprise".
Hugh Dennis accepts the Situation Comedy award for Outnumbered on stage during the 2012 NTA Awards at the O2, Greenwich, London
Daniel Roche arriving at the Premiere of What We Did On Our Holiday, Odeon West End Cinema, Leicester Square, London
LONDON, ENGLAND - OCTOBER 17: Ramona Marquez and Daniel Roche arrive at the 'Access All Areas' VIP gala screening held at Proud Camden on October 17, 2017 in London, England. (Photo by Stuart C. Wilson/Getty Images)
LONDON, ENGLAND - OCTOBER 17: Daniel Roche and Ramona Marquez attend the 'Access All Areas' gala screening in aid of Teenage Cancer Trust at Proud Camden on October 17, 2017 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for IP Publicity)
Tyger Drew Honey star of BBC's Outnumbered attends a viewing of Thor: The Dark World, the first Mountain Dew presents Green Screen event at the Odeon Cinema in Greenwich, London.
Claire Skinner arriving at the National Theatre's Fast Forward fundraising gala, in central London.
Hugh Dennis at the British Academy Children's Awards at the Roundhouse,.London.
Actress Claire Skinner reads a poem in front of the Coronation Chair as she takes part in a service at Westminster Abbey in central London to mark the 60th anniversary of the Queen's coronation.
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Outnumbered began in 2007 and aired until 2014.
Tyger Drew-Honey, Daniel Roche and Ramona Marquez starred as the children in the TV favourite.
It returned on Boxing Day in 2016 after a three-year hiatus, with the Brockman children having grown up.