Angelina Jolie and Brad Pitt have been supporting Shiloh Jolie-Pitt’s wishes to identify as a boy and they’ve also embraced the 10-year-old’s wardrobe: full of boys’ clothing!

An insider told OKMagazine.com exclusively that Shi doesn’t own one item of girls’ clothing, instead snatching items from her brothers’ closets!

“Shiloh’s so funny about her wardrobe and she couldn’t be more different from her sisters,” the source said. “She only wears boys’ clothes and is always stealing T-shirts from Pax’s wardrobe.”

The A-listers also let their fourth eldest child cut her short hair even shorter last year after revealing to Vanity Fair in 2010 that she “wants to be a boy.”

“We had to cut her hair,” Jolie said. “She likes to wear boys’ everything. She thinks she’s one of the brothers.”

The insider told OK! that Jolie and Pitt are “being extremely responsible about her tomboy ways,” and since they are “committed to giving Shiloh a loving family environment,” they’ve enlisted professional help.

“Angie and Brad are getting advice from all kinds of experts on how to handle it carefully and not damage their child,” the source said, adding that they don’t plan on addressing her gender until it’s time for high school.

“They are worried she might get bullied, but she’s a tough little nut who totally knows her own mind,” the insider added. “She’s a very impressive young person with a killer brain on her shoulders.”

Sound off in the comments below!

Join the conversation