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Are Justin Timberlake and Jessica Biel ready for kid No. 2?

/ Source: TODAY

Are Justin Timberlake and Jessica Biel ready for more kids?

If they are, Timberlake's playing coy. When "Extra’s" Mario Lopez popped the question Sunday at the Los Angeles premiere of "Trolls," the pop star quipped, “I’m having a lot of fun practicing.”

But Timberlake, the voice behind the character “Branch” in the animated film, was very clear about one thing: He can't stop the feeling. He loves being a dad.

The couple’s son, Silas Randall, is one-and-a-half now, and “[I] want him to stay that size,” Timberlake told Lopez.

Interviewed recently on TODAY, the 35-year-old described parenthood as “humiliating and humbling at the same time…. You literally just wake up in the morning, look in the mirror and go, 'I have no idea what I'm doing.'”

One thing Timberlake is doing is diapers.

“I’ve never had more poop on my person,” he told Carson Daly recently. “When you have a kid, you just get in there.”

Silas Randall, meanwhile, seems to be a chip off the old block. "He is a ham, just like his dad — serious ham," Biel, 34, says of her toddler.

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"He thinks everything is funny. He goofs on me all the time."

Timberlake and Biel celebrated their fourth anniversary on Oct. 19, and, according to People, they did it in low-key, married-couple fashion — over a serious game of Scrabble.

And the winner was … Biel!

“I played ‘sardine’ and got the 50 bonus points!” the actress posted on Instagram. “Guess who is no longer undefeated … #scrabblebrag.”

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Timberlake, meanwhile, says he is looking forward to some trick-or-treat Halloween fun with Biel and Silas, and don’t be surprised if there’s a "Trolls" theme to their costumes.

“I may pull some rank and see if we can ... maybe we’ll be some characters from the movie,” he told Lopez and his daughter Gia.

"Trolls" hits theaters Nov. 4.

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