Jessica Biel can't stop feeling like time is flying.
For the Candy star and husband Justin Timberlake, nothing exemplifies this more than seeing their eldest son Silas, 9, rapidly change right before their eyes.
"He went from this little guy to this kind of more grown-up kid," she said on the May 21 episode of SiriusXM's Let's Talk Off Camera with Kelly Ripa podcast, "and even Justin and I are like, ‘Wow, this kid is looking different all of a sudden.'"
As Silas reaches this stage, Jessica shared insight into the conversations about puberty they've started having.
"We talk a lot about his body's changing a lot and he's experiencing that," the 42-year-old continued. "He's experiencing growing pains. He has a hard time sleeping. He'll be waking up in the middle of the night. His legs hurt. His back hurts. He's, you know, he looks different, right?"
Jessica emphasized that she and Justin, 43, have made a point to discuss these changes, adding, "We're talking about deodorant. We're talking about hormones in our bodies and why we smell a different way, and so we're into it and we're on the precipice of all the big conversations I think."
Overall, the 7th Heaven alum—who also shares 4-year-old son Phineas with Justin—is just amazed by what "a cool person" her eldest is.
In addition to making sure Silas feels a sense of normalcy about puberty, Jessica and the *NSYNC alum are committed to their boys growing up out of the spotlight. This is why they chose to leave cities like Los Angeles and New York and instead raise their kids in Montana.
"It's just trying to create some normalcy for these kids," she explained. "We wanna share our family with our loved ones and friends."
Jessica added, "I don't wanna expose them in a way until they have an ability to make that decision for themself."
And other big plus about Montana? Very little paparazzi.
"You get hammered in the East Coast, you kinda get hammered on the West Coast," she said. "That's why we don't really live there anymore."
For more of Jessica and Justin's adorable family, keep reading.
Loving Hugs
"Happy Father’s Day to my spectacular husband who is one incredible dad," Jessical Biel wrote in an Instagram tribute to Justin Timberlake in June 2025. "And to all the other dads out there doing their thing. Leading with humility and vulnerability. Showin up with understanding and compassion, and always using humor to get through the hard stuff. Major respect and love to all y’all."
The couple are parents to sons Silas and Phineas.
Birthday Dad
"You’re so many things to so many people," the 7th Heaven star penned in a message for the singer's 43rd birthday in June 2024. "But to us you are THE ROCK. The rock we climb on, we lean against. The rock that shades us from the sun. And when we recline on you, as we always do, hopefully our butts will keep you eternally grounded and warm. We LOVE YOU."
Backstage Pass
Justin and Jessica's sons Silas and Phineas rocked the singer's Forget Tomorrow World Tour merch when he kicked off the concert series in April 2024.
Mother & Son
The actress hugged the couple's youngest son Phineas, as seen in this video Justin shared on the actress' 42nd birthday in March 2024.
Selfia at Sunset
Justin shared this pic on Jessica's 42nd birthday in March 2024.
Couple's Selfie
The Grammy winner also shared this snap of The Better Sister celeb on her 42nd birthday in March 2024.
Group Hug
Jessica posted a sweet family snapshot as part of her Instagram tribute to Justin on Father's Day 2022.
Family Band
Justin celebrated Father's Day 2022 by sharing a photo of his "two favorite melodies," sons Silas and Phineas, playing piano together.
Happy 40th Birthday, Jessica
Jessica shared this precious pic of her with her sons on her 40th birthday.
Sweet Tribute
This was Silas and Phin's birthday banner for Jessica.
Lovebirds
Justin and Jessica enjoyed cake on her 40th birthday.
A Walk to Remember
"Thankful for my guys," she captioned heartwarming holiday snap. "Merry Christmas everybody!!"
Jessica Biel and Her "Little Man"
Jessica celebrated her "little man" on his big day back in April 2020. Happy birthday, Silas!
Birthday Wishes
The Sinner actress marked her birthday on March 3, 2020 with a special cake and her one and only. On Instagram she wrote, "Celebrating my birthday in style... and by that I mean, in pajamas. I made Justin PROMISE not to sing Happy Birthday to me, so he improvised. Sorry you can't hear it, but I'm still laughing. Thank you, you wonderful human, for really listening to me, and for throwing my kinda party. And thank YOU ALL for the birthday wishes. Feeling the love."
Sweet Moments
On Valentine's Day 2020, Jessica shared a sweet picture of Justin and their son Silas on Instagram. She captioned it, "My valentines. Love you guys to the moon."
Couple Goals
Jessica and Justin looked madly in love at her birthday party in March 2019.
Happy Independence Day
Justin, Jessica and son Silas celebrated Fourth of July 2019.
Mother's Day 2019
The trio enjoyed some time at the beach to mark the holiday.
Disney Magic
When it comes to Halloween night, Justin and Jessica always go all out. Anyone remember their Toy Story looks from 2017?
Halloween Envy
"Happy Halloween from Poppy, Branch and lil Branch. We be Trollin'..." Jessica wrote on Instagram after Halloween 2016.
A Mother's Love
"If that pic doesn't say ‘City Of Love' then I'm out..." Justin shared with his social media followers in July 2018. We can't help but agree.
Costume Winners
"They got candy? LEGO!" Justin shared with his Instagram followers on Halloween 2018.
Look of Love
"To my husband who I watch with awe everyday as he guides and teaches, encourages and supports, and above all, LOVES the sh$t, out of his own young man," Jessica wrote on Instagram. "Happy Father's Day to all the dads out there. We can't do this parenting thing without you."
Boo
The famous trio dressed up as Batman, Robin and Harley Quinn for Halloween 2018. "This Halloween was one hell of a block party!" she shared on Instagram. "Happy Halloween from our LEGO family to yours."