'Ate the biggest burrito ever': Jack Osbourne's wife Lisa Stelly CONFIRMS she is pregnant again... as she jokes over her growing baby bump

Jack Osbourne, 31, and wife Lisa Stelly have confirmed they are set to become parents for the third time.

Taking to Instagram on Monday, Lisa had confirmed the news by debuting her growing baby bump via Instagram and joking over the size of her stomach, likening it to a 'burrito'.

The brunette beauty - who shares daughters Pearl, five and Andy, two - revealed she is pregnant again by quipping: 'Literally ate the biggest burrito ever.'

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Pregnant again! Jack Osbourne and wife Lisa Stelly have confirmed they are expecting their third child together

Pregnant again! Jack Osbourne and wife Lisa Stelly have confirmed they are expecting their third child together

In the snapshot, Lisa is seen proudly displaying her pregnancy curves while clad in a black and red floral bardot dress. 

Making a rocker sign with one hand, the stunner is seen cosying up to her husband Jack, whom is the son of Ozzy and Sharon Osbourne, as they posed for a selfie together in the mirror.

Jack, meanwhile, is seen looking down at his wife sporting a smart suit and his long locks slicked back into a bun. 

Their snap confirmed that the couple are set to expand their brood, with Lisa's baby bump stealing the show and herself and her man finding themselves inundated with congratulations from fans.

Proud parents: The duo already share two daughters together; Pearl, five, and Andy, two 

Proud parents: The duo already share two daughters together; Pearl, five, and Andy, two 

Exciting times! Jack had been in Vegas with Lisa and his famous parents to watch the boxing match between Mayweather and McGregor when his baby joy came to light

Exciting times! Jack had been in Vegas with Lisa and his famous parents to watch the boxing match between Mayweather and McGregor when his baby joy came to light

Lisa and Jack are yet to reveal any further details about her pregnancy, including the sex and due date.

It will be the duo's third child and having had experience when it comes to parenting, Jack - who suffers from Multiple Sclerosis (MS) and is blind in one eye as a consequence - has previously revealed how he has learned babies are not as 'fragile' as he first thought.

Speaking in an interview last year, he said: 'Advice I would give to an expecting dad would be that babies are not as fragile as you assume. 

'I remember the first couple weeks when Pearl was born, I was [like], "I don't know, I'm gonna break it!" You can change them out of their clothes and you won't break them.You can hold them without crushing them.'

'Babies are built to last,' he insisted. 

Happy: He and Lisa had tied the knot in October 2012 during a ceremony in Hawaii, six months after welcoming their eldest child Pearl in April

Happy: He and Lisa had tied the knot in October 2012 during a ceremony in Hawaii, six months after welcoming their eldest child Pearl in April

He and Lisa had tied the knot in October 2012 during a ceremony in Hawaii, six months after welcoming their eldest child Pearl in April. 

Before the arrival of their second daughter, Andy, in June 2015, Jack and Lisa had suffered a heartbreaking setback, as Lisa had miscarried a baby boy in 2013. 

She admitted at the time that she needed to take some time to 'come to terms' with her loss, before trying for another baby. 

Lisa had said: 'Losing a baby really does do a lot of damage personally and to the whole family. I needed to take some time and come to terms with our loss. I'm really glad we did [wait]. When I got pregnant [with Andy two years later], I was fully prepared. It wasn't like a Band-Aid. I still have moments here and there, of course.' 

News of Lisa's pregnancy comes after Jack recently spoke of the relationship his mother, X Factor judge Sharon (above with husband Ozzy), and sister, Kelly, have with his daughters

News of Lisa's pregnancy comes after Jack recently spoke of the relationship his mother, X Factor judge Sharon (above with husband Ozzy), and sister, Kelly, have with his daughters

Amusing: He joked that there is 'always a meltdown' when his older sister Kelly, 32, babysits his daughters

Amusing: He joked that there is 'always a meltdown' when his older sister Kelly, 32, babysits his daughters

News of Lisa's pregnancy comes after Jack recently spoke of the relationship his mother, X Factor judge Sharon, and sister, Kelly, have with his daughters. 

Sharing a glimpse into their family life, Jack joked to Us Weekly that there is 'always a meltdown' when his relatives babysit his brood. 

He said: 'My mom will babysit. My mom babysits Pearl because Pearl is way easier than Andy,' before adding: 'Kelly— usually some weird meltdown happens when Kelly babysits, so short, small doses.' 

Jack also gushed about being a father to the publication and how he adores 'making memories' with his children. 

He added: 'At the end of the day when your number's up, it doesn't matter how much money you have, how famous you are, how many pieces of art you have, whatever. None of that matters.

'All that matters is the memories that you shared with people, and for me, I like to say I'm in the business of making memories with my kids, that's it and that's kind of what we're trying to do.'