Three months looks good on you, Lennox!
Amy Davidson took to Instagram on Thursday, June 2 to share a sweet new photo of her baby son — and he's just getting cuter and cuter by the day!
"Hey guess what?! I'm three-months-old! High five!" the 8 Simple Rules star captioned the snapshot of Lennox adorably posing in his three-month-old onesie.
RELATED: You HAVE to Watch This Adorable Video of Amy Davidson's Baby Son Lennox!
The 36-year-old actress and her husband, Kacy Lockwood — who married in 2010 — welcomed Lennox, their first child, in March 2016.
Click through the gallery below to see more of Hollywood's cutest babies!
River Rose Blackstock
Kelly Clarkson and Brandon Blackstock welcomed daughter River Rose in June 2014.
Isaiah Fisher
Carrie Underwood and Mike Fisher welcomed son Isaiah in February 2015.
Theodore Kushner
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Elizabella Bugliari
Alyssa Milano and Dave Bugliari welcomed daughter Elizabella in September 2014.
Princess Charlotte
Kate Middleton and Prince William welcomed daughter Charlotte in May 2015.
Rhodes Gilbert Perry
Sara Gilbert and Linda Perry welcomed son Rhodes in March 2015.
Bowie and Cy Perego-Saldana
Zoe Saldana and Marco Perego welcomed twin sons Bowie and Cy in November 2014.
Jane Kimmel
Jimmy Kimmel and Molly McNearney welcomed daughter Jane in July 2014.
Holt Fisher Smith
Tiffani Thiessen and Brady Smith welcomed son Holt in July 2015.
Otis Sudeikis
Olivia Wilde and Jason Sudeikis welcomed son Otis in April 2014.
Rockwell Liu
Lucy Liu welcomed son Rockwell in August 2015.
Evelyn Penn Willis
Bruce Willis and Emma Heming Willis welcomed daughter Evelyn in May 2014.
Max Zuckerberg
Mark Zuckerberg and Priscilla Chan welcomed daughter Max in November 2015.
James Lauren
Lauren Bush Lauren and David Lauren welcomed son James in November 2015.
Georgia James Breault
Christine Lakin and Brandon Breault welcomed daughter Georgia in March 2016.
Silas Timberlake
Jessica Biel and Justin Timberlake welcomed son Silas in April 2015.
Wyatt Isabelle Kutcher
Mila Kunis and Ashton Kutcher welcomed daughter Wyatt in October 2014.
Poppy Louise Hager
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Jovan Jovanovic
Daphne Oz and John Jovanovic welcomed son Jovan in October 2015.
Ava Marie Faustino
The five-month-old daughter of David Faustino and Lindsay Bronson.
Rafael Baldwin
Alec Baldwin and Hilaria Baldwin welcomed son Rafael in June 2015.
Lennox Sawyer Lockwood
Amy Davidson and Kacy Lockwood welcomed son Lennox in March 2016.
Adrian Benjamin Colonomos
Ginger Zee and Ben Aaron welcomed Adrian in December 2015.
Quinn Sophie Arnold
Tom Arnold and Ashley Groussman welcomed daughter Quinn Sophie in December 2015.
Charlie Ocean Goldblum
Jeff Goldblum and Emilie Livingston welcomed son Charlie in July 2015.
Maddox Laurel Boss
Allison Holker and Stephen "tWitch" Boss welcomed son Maddox in March 2016.
Story Goldberg
Soleil Moon Frye and Jason Goldberg welcomed son Story in May 2016.
Marlowe Martino
Eva Amurri Martino and Kyle Martino welcomed daughter Marlowe in August 2014.
Sailor Gardner
Liv Tyler and Dave Gardner welcomed son Sailor in February 2015.
Ashe Meyers
Seth Meyers and Alexi Ashe welcomed son Ashe in March 2016.
Ray Ling Song
Lisa Ling and Paul Song welcomed daughter Ray in June 2016.
Maxima Zuckerberg
Facebook CEO Mark Zuckerberg and his wife, Priscilla Chan, welcomed baby daughter Maxima in November 2015.
Remington Alexander Blackstock
Kelly Clarkson and husband Brandon Blackstock welcomed baby son Remington in April 2016.
Lula Rose Gardner
Liv Tyler and Dave Gardner welcomed daughter Lula in July 2016.
Frederick Easton Klein
Chris Klein and his wife, Laina Rose Klein, welcomed son Frederick in July 2016.
York Banks Asla
Tyra Banks and her boyfriend, Erik Asla, welcomed son York via surrogate in January 2016.
River Rocket Oliver
Jamie Oliver and Jools Oliver welcomed Baby No. 5, son River Rocket, in August 2016.
Alec Shifrin
Sara Haines and her husband, Max Shifrin, welcomed Alec in March 2016.
Daisy Josephine Sudeikis
Olivia Wilde and her longtime boyfriend, Jason Sudeikis, welcomed their daughter, Daisy, in October 2016.
Major James Martino
Eva Amurri Martino and her husband, Kyle Martino, welcomed their son, Major, in October 2016.
Charlotte Clinton Mezvinsky
Chelsea Clinton and Marc Mezvinsky welcomed daughter Charlotte in September 2014.
Dolly Grace Schlapman
Little Big Town singer Kimberly Schlapman and her husband, Stephen Schlapman, adopted daughter Dolly in January 2017.
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