Sounds like good times.

I’d say since she hardly knew you and yet invited you to her house for a small gathering and immediately divulged her sexual practices (them having many partners), I’d say they might be on a look out for new partners. Only talked to you a few times and all of a sudden wants you to drive a hour to her house. They might be testing what’s your take on it. And they want to see if you are a good fit. Announcing sexual orientation right away is also kind of interesting. Typically it’s not something you just blurt out right away. Dim lights and comfy couches lol have to chuckle about that

It doesn’t mean you have to participate of course as long as they aren’t pushy about it. Just enjoy good times. They’ll probably notice you aren’t leaning that way so they won’t pursue you in that manner. Otherwise it would be awkward. Hopefully you can be just friends