Mara Wilson has come out as "bi/queer" on Twitter.

Mara Wilson [Twitter]

Mara Wilson [Twitter]

The 28-year-old actress - who was a child star with movies including 'Matilda' and 'Mrs Doubtfire' - took to social media to reveal her sexuality in the wake of the Orlando mass shooting in which 49 people were killed at gay nightclub Pulse on Saturday (11.06.16).

She wrote: "I *used* to identify as mostly straight. I've embraced the Bi/Queer label lately (sic)."

Earlier Mara had shared a picture of herself on her first visit to a gay club at the age of 18 and hinted at her sexuality, saying the LGBTQ community felt like home when she "learned something about myself".

She wrote: "Me at a gay club when I was eighteen. I feel embarrassed looking at it now...

"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. 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. 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 (sic)."

However, she insisted that despite her decision to reveal her sexuality on Twitter, she still planned to remain "pretty private" about her relationships.

She said: "Your support is much appreciated. I will say, though, I'm still gonna be pretty private about my relationships, as I always have been."

Mara recently wrote a memoir, 'Where Am I Now? - True Stories of Girlhood and Accidental Fame' which tells of her time as a child star and her life afterwards.