Surprise! These celebrity kids are best friends like their famous parents

Hilary Duff and Lisa Osbourne Mom’s Hilary Duff and Lisa Osbourne have been friends for years, so it only seems natural that their offspring would also get along well. Hilary's son Luca has often been seen enjoying a playdate with Lisa and Jack's daughter Pearl. In February, Lisa and Hilary uploaded pictures of the two kids enjoying an ice cream together in sunny California. Photo: Instagram/mrslisao

Sarah Michelle Gellar, Reese Witherspoon and Selma Blair Sarah, who just launched her lifestyle site Foodstirs, recently revealed that their 3-year-old sons Rocky and Tennessee are really good friends and hang out together often. “Reese’s son and my son are best friends,” the 38-year-old told Entertainment Tonight. She also shared that they often carpool together. Selma, who has a 4-year-old son Arthur, was also on hand to help celebrate Rocky's birthday in September. Photo: Getty Images

Elton John and Neil Patrick Harris Elton John, Neil Patrick Harris and their families have enjoyed big group family holidays together for years. This January, the group was spotted enjoying sun filled days in Hawaii. The couples took in the sights of the island and enjoyed a paddle board session with Neil and his partner David Burtka’s twins Gideon and Harper, 5, and Elton and David Furnish’s children, 4 year-old Zachary and 2-year-old Elijah. Photo: Getty Images

Kim Kardashian West and Larsa Pippen Though there is a little age gap, Larsa and Scotti Pippen's daughter Sophia has a new friend in Kim and Kanye West's daughter North. The two hung during a visit to Miami, where the 6-year-old lives. Kim and Larsa have spent plenty of fun nights and trips together, so we can only imagine what is in store for these adorable girls. Photo: Instagram/@kimkardashian

Jennie Garth and Tori Spelling Twenty-five years ago, Jennie Garth and Tori Spelling starred in 'Beverly Hills, 90210' together and started an everlasting friendship. Though their show 'Mystery Girls' was canceled in 2014, they saw a new set of friendships develop on set. “They rule the roost, they are the bosses pretty much” Jennie shared to Us Weekly of her three daughters Fiona, Lola and Luca and Tori’s children Liam, Stella, Hattie and Finn hanging out together. Tori also continued, "Stella's totally me and Fiona's totally Jennie." Photo: Getty Images

Toni Collette and Drew Barrymore The two actresses became inseparable after playing bffs in their latest movie, 'Miss You Already.' They also revealed that their families have become so close that they have traveled together. In an interview promoting their film, Drew Barrymore said during an appearance on Australia's TV show 'The Project': “Our kids became friends and they’re still best friends, and we’ve traveled together and we had the electric connection, and we got lucky.” Drew, who has 3 year-old Olive and 1-year-old Frankie, wasn’t sure about returning to work so soon after having her second child but once she saw her children bond with Toni’s kids, 7-year-old Sage and 4-year-old Arlo, she knew that she had made the right decision. Photo: Getty Images

Jessica Simpson and Cacee Cobb Just like their moms! Jessica Simpson and Cacee Cobb have been friends well before Jessica had her billion dollar empire. Their sons Ace Knute and Rocco already showed back in 2014 that they have no problem getting into trouble together. Jessica even captioned the photo: ""BFF's in the making! @caceecobb #ACEANDROCCO." Photo: Instagram/@jessicasimpson