Girl on girl curiosity. 🤔

So here's the thing. When I was around 15, I "experimented" with a girl. She fingered me (which I kind of liked) and when I tried to return the favor I just wasn't into it. Now that I'm older and married, part of me feels like my chance to experiment again is long gone. My husband knows I've wanted to try being with a girl, he's bought up having a threesome which I'm not very comfortable with. I've tried looking for girls on my own. I'm just not sure where to start, or how to go about it. Have any of you ladies tried? Any thoughts? Am I the only one? I would love to try with someone who is either experienced themselves, or someone who's new to it. Let's discuss! 🙃