YouTube star JoJo Siwa shares she has a girlfriend on The Tonight Show with Jimmy Fallon

JoJo Siwa rose to fame when she was a child on reality show Dance Moms, and shared with fans she was gay during a TikTok video that went viral. Photo / Getty Images

JoJo Siwa has a girlfriend.

The 17-year-old star couldn't help but gush about her "amazing, wonderful, perfect, most beautiful girlfriend" as she appeared on US TV for the first time since opening up about her sexuality.

Speaking on The Tonight Show Starring Jimmy Fallon, she admitted he had "the most amazing, wonderful, perfect, most beautiful girlfriend in the whole world".

And JoJo admits she didn't want her coming out to "be such a big thing" and is thankful for all the messages of love and support she's received from fans since doing so.

JoJo Siwa rose to fame when she was a child on reality show Dance Moms, and shared with fans she was gay during a TikTok video that went viral. Photo / Getty Images

She said: "Even if there are 1 million people that don't accept it, there's 100 million that do and I think that's something really important. 100 million people is a lot of people and so also keep that in mind. But also, I didn't want it to be such a big thing. What am I going to do? Have a coming out party? No, it's just who I am, and so after I posted it I was like, 'Ah, alright, I'll do it!' I was just on the phone spontaneous because we're long distance. I was like, 'Ah, I did it,' back to FaceTiming with her."

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And JoJo admits it "makes her heart so happy" being able to be open about her relationship.

She added: "But if I lost everything that I've created because of being myself and because of loving who I want to love, I don't want it. That's not what I want if I can't love who I want to love, it's one of the most important things to me ... I was on the phone with my girl and I started crying and she was like, 'What's wrong with you?' and I was like, 'I'm just so happy because now I get to share what makes me the happiest with the world and it makes my heart so happy.'"