Selena Gomez and David Henrie may not actually be brother and sister, but the duo still supports one another like family.

The Rare Beauty founder recently attended a screening for the actor’s new film Monster Summer and posed with her former Wizards of Waverly Place costar in a photo, after which Henrie took to Instagram to thank Gomez for all the love Friday (Oct. 4). “Sis… I am always grateful for your support and your belief in me,” he wrote on his Instagram Story, which the “Lose You to Love Me” singer reposted. “So happy you loved the film.”

Henrie also shouted out Gomez in a lengthier post on his feed, revealing, “The first thing she said was ‘Why don’t they make movies like this anymore! I loved it!’”

“@monstersummermovie is in theaters TODAY nationwide just in time for Halloween viewing!” he continued, sharing a photo of Gomez posing with him at the screening with her arm lovingly draped on his shoulder. “It’s an ideal Halloween event for the whole family, or if you’re a nostalgic millennial like Sel and I, it’ll be perfect for you too haha.”

The pair have been good friends for over 17 years, first coming together as onscreen siblings Alex and Justin Russo on Disney Channel’s Wizards of Waverly Place. The show ran from 2007 to 2012, more than a decade after which Gomez and Henrie would reunite to produce a reboot for Disney+ titled Wizards Beyond Waverly Place.

The Only Murders in the Building star will reprise her role as Alex in guest appearances on the series — which premieres Oct. 29 — while Henrie’s character will lead the show. In late September, Disney+ dropped a trailer that gave fans a peak at the reboot’s storyline, which will show Justin’s family life being turned upside down when Alex tasks him with training a young wizard named Billie.

“I truly feel like it was the place I started, and I will always be grateful for that time,” Gomez said of Wizards in a recent interview with People. “I just hope that this new chapter can bring a whole new audience joy the same way that we did when we were younger.”