Amandla Stenberg, star of "The Hunger Games" and "Everything, Everything," first came out as bisexual in 2016.
During her takeover of Teen Vogue's Snapchat channel, the star spoke about why it's important to be open about her sexuality and the pain that comes from remaining quiet.
"We cannot be suppressed," she said. "We are meant to express our joy and our love and our tears and be big and bold and definitely not easy to swallow. Here I am being myself and it's definitely hard and vulnerable, and it's definitely a process, but I'm learning and I'm growing."