Robin Lively shares insights about her sisterhood with Blake Lively

You don’t need jeans to prove that there’s something special between them Blake Lively and Robin Lively.

When Scandalmonger The girl turned 35 on August 25, and her half-sister Robyn celebrated the occasion with a cute photo montage of the couple over the years. IN posted on Instagram, A teenage witch star wrote: “Aww you’re my best friend.”

“Now everyone knows you’re barely younger than me,” Robin continued. “Happy birthday sweet little sister, you are special to me.”

The video for Queen’s “You’re My Best Friend” comes nearly two weeks after Blake visited Disneyland with Robyn for an early birthday celebration. In the photos he shared Sisterhood of the Traveling Pants Actress, the two were seen posing for a selfie at the Southern California theme park’s Sleeping Beauty Castle before hopping across the plaza to Disney’s California Adventure Park for a night out on the Pixar Pier.

“Find me a happier place on earth to start celebrating my birthday early,” Blake wrote on Instagram on Aug. 14. “I’ll wait…”