Liam Payne and Cheryl Tweedy have not tied the knot yet.
Liam Payne and Cheryl Tweedy
Although Liam, 23, has been referring to the Girls Aloud singer as his "wife" in recent interviews, he insisted that it is just a term of affection and the pair have not already wed.
Speaking to PEOPLE, Liam explained: "In the UK you say 'the Mrs'. Maybe one day [we'll get married]."
Liam and Cheryl welcomed son Bear together four months ago and in a recent interview, Liam implied that they have made their union official.
Speaking to French website On The New Move about working with Pharrell Williams earlier this year, he said: "I have something that I'm preparing with Timbaland and I was writing with Pharrell when his wife was pregnant along with my wife for that matter."
Pharrell's wife Helen Lasichanh gave birth to triplets in January, while Cheryl and Liam welcomed Bear in March.
Meanwhile, Liam recently gushed about how wonderful Cheryl, 34, is as a mother.
He said: "She's a great mum and I could not have been happier to have her as the mother of my child."
After finding fame on 'The X Factor' in 2010, Liam enjoyed huge success as a member of One Direction and has now launched a solo career, but admits nothing can compare to the birth of his son.
Speaking on stage recently, he said: "Oh man, I mean the birth of my son has been the most amazing thing that I've been involved with so far, but I have to say playing stadiums around the world and going out with you guys, thank you so much for everything you do for us."
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