"It was definitely when I was young and definitely should not have been watching 'Cruel Intentions' but did, and it was that scene where they made out on the park lawn," Lovato said of the scene, which features Sarah Michelle Gellar's character Kathryn Merteuil giving her friend Cecile Caldwell (Selma Blair) a lesson on how to kiss.
"I was just like, 'Oh wait a minute, I really like that, I want to try it,'" Lovato explained. "And then when I was 17, I did get down with that and that's when I knew. You want the tea? That's it!"
The singer went on to admit that she's even written songs about women, though her fans assumed they were about men.
"There were times I wrote songs about girls that my fans thought I wrote about guys," she explained. "I'm surprised that some of them didn't figure out that some of the songs were for certain people."
"I was sharing it with the world, yet I wasn't being completely obvious with what I was talking about," she added. "Music was my safe space."
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In an interview with InStyle back in 2018, Lovato confirmed she was queer, describing her sexuality as "very fluid."
"I think love is love," she told the publication at the time. "You can find it in any gender. I like the freedom of being able to flirt with whoever I want."
"It was actually, like emotional, but really beautiful," she said. "After everything was done I was like shaking and crying and I just felt overwhelmed."
While she said her dad seemed to "obviously" know this already (that she might end up falling in love with a woman), Lovato said she was far more nervous about telling her mom, "but she was just like, 'I just want you to be happy.' That was so beautiful and amazing, and like I said, I'm so grateful."
As for her sexuality, Lovato told Cohen she's "still figuring it out."