Gillian Anderson had a relationship with a woman while she was in high school.
The former X-Files star has experimented with her sexuality in the past but says she was too attracted to men for her lesbian romances to go the distance.
She told Out magazine: "I was in a relationship with a girl for a long time when I was in high school.
"If I had thought I was 100 per cent gay, would it have been a different experience for me? Would it have been a bigger deal if shame had been attached to it and all those things that become huge life-altering issues for youngsters in that situation?
"It's possible that my attitude around it came, on some level, from knowing that I still liked boys."