Justin Timberlake and Jessica Biel welcome second child

Justin Timberlake and Jessica Biel have reportedly welcomed their second child in secret.

The 38-year-old actress and her singer husband - who already have five-year-old son Silas together - are believed to have become parents for the second time, after Jessica gave birth to a baby boy earlier this week.

Jessica's mother, Kimberly Conroe Biel, was present for the birth of her newest grandchild, the Daily Mail reports.

The news of the tot's rumoured arrival was revealed by a friend of Jessica's mother on Saturday, who claimed Kimberly plans to stay with Jessica and Justin until Sunday, and confirmed the sex of the new baby.

As of the time of writing, Jessica and Justin are both yet to comment on the reported arrival of their second child.

Meanwhile, 39-year-old Justin - who married Jessica in 2012 - recently said he has "become a mess" since he became a father.

Asked what makes him cry, he said: “I'm a softie, man. Watching your son learn the smallest thing can bring you to that place, for sure. I have become a mess since I became a father.”

In recent years, the 'Trolls' star has become a family man, and is now "picky" about the projects he takes on so that he can justify working away from his wife and son.

“I always want to continue to be inspired,” he added.

“At this point in my life, I can be picky about the projects I'm going to work on.

“I choose wisely because I know it takes a lot of time to do the type of work that I want to do, whether it's making music or a film - or both in the case of 'Trolls World Tour'.

“That time takes you away from your family, so it had better be something really, really inspiring.”

Reporting by Bang Showbiz.

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