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I'VE GOT YOU, BABE
Madonna's oldest daughter Lourdes, 14, has nothing but love for little sis Mercy, 4, as the girls share a smooch in Mercy's home country, Malawi, on April 5.
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FOLLOW THE LEADER
All hands on deck! Angelina Jolie's tiny travelers – Maddox, 9, Zahara, 5½, Pax, 7, and Shiloh, 4 – practice the buddy system on July 26 while walking through the Narita International Airport in Japan.
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Follow me, sis! Oscar Jackman, 10, stays just steps ahead of eager 5-year-old Ava on June 10 while running through New York City with dad Hugh.
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Newly minted big bro James, 8, sets his thoughtful gaze on then-newborn sisters Marion Loretta and Tabitha, now 17 months, while mom Sarah Jessica Parker and dad Matthew Broderick proudly look on.
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THREE OF A KIND
Peekaboo! Suri Cruise, 4, grabs the attention of smiley sis Bella, 17, during a trip to New York's Central Park with brother Connor, 15, and proud papa Tom on Sept. 7.
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It's all about male bonding for the inseparable Beckham boys – Brooklyn, 11½, Romeo, 8, and Cruz, 5½ – as they attend a private Xbox 360 party in Beverly Hills on Oct. 23.
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MOM'S LITTLE HELPERS
No need for bodyguards: Kimora Lee Simmons just employs giddy girls Ming, 10½, and Aoki, 8, as security for baby bro Kenzo, now 18 months.
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Girls gotta stick together! Heidi Klum's eldest, 6-year-old Leni, holds tight to Lou, 13 months, during a trip to Mr. Bones Pumpkin Patch in West Hollywood on Oct. 17.
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Jamie and Jools Oliver get a break courtesy of daughters Poppy, 8½, and Daisy, 7, who give a hand to younger siblings Petal, 19 months, and Buddy, 2 months, in London one day after Buddy's birth on Sept. 15.
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LEAN ON ME
Talk about a sweet escape! Gwen Stefani and Gavin Rossdale's littlest dude, 2-year-old Zuma, finds a quiet moment to wrap himself around big bro Kingston, 4, in Los Angeles on April 18.