From snuggles with Mom to the first day of school, Hollywood's cutest celebrity kids had a very busy week! We saw Harper and Gideon Burtka-Harris let out some giggles before their first day of school. Christy Turlington and Gisele Bündchen received some supermodel-sized snuggles from their kids, while Selma Blair  was matchy-matchy with little Arthur. Click through now to see this week's cutest celeb tot candids, and don't forget to follow POPSUGAR Moms on Instagram , Facebook , Pinterest , and Twitter !
Miranda Kerr  spent some time with her son, Flynn Bloom, and shared this adorable snap while playing on a slide.
Autumn Reeser had a dapper-looking Finn  Warren waiting for her to return home.
Josh Kelley got in some pool time with Naleigh and Adalaide.
Skyler Berman had a postbath snuggle with his mom's colleague Joey Maalouf.
Victoria Beckham  showed off a pair of Harper's patriotic Start-Rite Mary Janes.
Selma Blair  and Arthur showed off their matching rainbow beach bums.
Molly Sims realized she didn't quite put Brooks in his carrier the right way!
Christy Turlington got in a little snuggle with her son, Finn.
Gisele Bündchen and baby Vivian cuddled for the camera.
Britney Spears  shared the screen with sons Preston and Jayden in her new video.
Stella Ivery was not impressed with her snow cone!
Harper and Gideon Burtka-Harris got ready for their first day of preschool!