The stand-in presenter was midway through an interview with stars of the Lethal Weapon reboot, Jordana Brewster and Keesha Sharp, when one of them let their tongue run off.
When asked how she manages to juggle her work-life balance, Jordana, 37, explained: "To be a working actress is the best job because we get to spend so much time with our kids.
"I mean this morning [my son] Julian was a bit p***ed off because he was like, 'Why do you have to go to work, Mommy?'," she said.
Jordana Brewster swore during her appearance on Lorraine today
Rochelle was forced to apologise once more for the gaffe
Sorry, I just have to apologise for the language again
Rochelle was quick to cover the blunder, telling viewers: "Sorry, I just have to apologise for the language again."
She is clearly now an expert at covering for her guests' gaffes after an interview with Bridget Jones author Helen Fielding went awry yesterday.
As she discussed her famous men, Helen accidentally called one of them by a swear word, telling Rochelle: "I always thought they were two halves of the perfect man.
Lorraine Kelly in pictures Mon, January 11, 2016
Scottish TV presenter Lorraine Kelly celebrates 30 years on television. Here is a look at Lorraine's TV moments.
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Lorraine Kelly flaunts her bikini body
"Mark Darcy was the sensible choice but he is hot, but Daniel Cleaver was the sort of sexy b***ard that you couldn't resist," the author slipped.
The former-Saturdays singer made her apologies on Helen's behalf adding that they are "very, very early" for that kind of language.