Austin Butler Says He Loves Being the 'Fun Uncle' to Ashley Tisdale's Kids: 'I Feel So Honored'

Austin Butler is "so honored" to be a part of former costar Ashley Tisdale's family life.

At the Los Angeles premiere of his new movie Bikeriders on Monday, June 17, the actor, 32, told E! News that he is practically family to the High School Musical actress, 38, and her daughter Jupiter, 3, whom she shares with husband Christopher French.

"I love being the fun uncle," he shared. "I play with the toys and whatnot, and then I can go home at the end of the day."

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Butler costarred with Tisdale in 2009's Aliens in the Attic and 2011's Sharpay's Fabulous Adventure.

The Elvis star added that the actress, who is currently expecting baby No. 2 with husband Christopher French, is "such a good mom," adding, "I feel so honored to be a part of her life and to get to know her children."

Another former costar of Tisdale's, Zac Efron, also spoke out about her impressive mom skills this month.

While walking the carpet in Los Angeles at the premiere of his new film A Family Affair, the actor shared his thoughts on his High School Musical costars Ashley Tisdale, 38, and Vanessa Hudgens, 35, being pregnant at the same time.

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“Oh they’re going to be the best moms ever,” he excitedly told Access Hollywood on the carpet. “Those girls, are you kidding me? Oh my gosh.”

He continued to hint at a reunion featuring both actresses and their families. “Yeah we’re going to have some fun family reunions coming up,” he added.