How do I let a potential lesbian friend know I'm gay without being too random?

There's a girl that I know who's a lesbian and she's super nice and she seems cool, and I want to try to make friends with her but I never see her because I am in homeschool now. I followed her on instagram and sent her a message. I want to ask her if she wants to hangout, but since she doesn't know I'm gay I don't want her to get the wrong idea.

Is this just me fretting for no reason? How can I let her know I'm gay without being super random? I tried that, and I think it weirded the friend out a little because I brought it up suddenly. I would like to avoid that. We never really hung out when we went to school together either. Would it be weird to ask her to hangout because of that?

 

I don't really feel like we ever knew eachother well enough for me to say that. We were acquiantances but not much more.

Not sure how I can work that into the conversation, but I could try it if I see an opportunity.