The former child star -- famous for roles in Matilda and Mrs. Doubtfire -- shared a photo of herself at a gay club as a teenager after Sunday's massacre at Pulse nightclub in Florida and opened up about why the LGBT community has always felt like home to her.
"Me at a gay club when I was eighteen. I feel embarrassed looking at it now..." she wrote alongside the picture.
"Being a 'straight girl' where I clearly didn't belong, but I will say, I felt so welcomed there. I have never had a better experience at a club than I did then. Great music and people," the 28-year-old actress and writer explained. "And one of my friends met his partner that night!"
"I haven't been to one since college, except once when a friend brought me along," she continued. "I didn't feel like I belonged there. But the LGBTQ community has always felt like home, especially a few years later when I, uh, learned something about myself. So thank you."
If that all seems slightly vague, Wilson clarified to a fan, "I said I *used* to identify as mostly straight. I've embraced the Bi/Queer label lately"
"Let me put it this way: I'm a 2," Wilson later explained, referring to the Kinsey scale of sexuality, where a two signifies, "Predominantly heterosexual, but more than incidentally homosexual."
"I know a lot of people don't like the Kinsey scale, and that is fine by me. But I'm pragmatic at heart and find comfort in numbers," she concluded.
In the wake of the tragedy -- where at least 49 people were killed
and even more injured -- President Obama, countless celebrities and LGBT groups have spoken out about the worst mass shooting in U.S. history. Hear their messages in the video below.