Jessica Biel is in mommy heaven. The Spark actress opened up about motherhood — and her boys! — on the Today show on Friday, Oct. 2.

"He's wonderful. He's just a joy," Biel, 33, said of baby Silas. "It's an amazing, amazing experience."

The 7th Heaven alum and Justin Timberlake, 34, married in October 2012. Us Weekly broke the news of Biel's pregnancy, and the couple welcomed their first child this past April.

"[It's] incredibly hard, the hardest job in the world and I've never been more thankful and grateful to my own mother," Biel said Friday. "Oh, my gosh I'm going to call her right after this actually and just thank her. What you have to do for your kid — it's an amazing responsibility and the biggest joy ever."

Biel dropped by the Today show to promote her new Funny or Die videos, which is in conjunction with WomanCare Global to educate women on reproductive issues. She's keeping busy, but gushed how lucky she is to parent with Timberlake.

"He is doing it all," she said. "He is in there, deep."

Watch the video above!

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