Hey all! Seren here.
I just wanted to thank everyone on this thread for giving us advice about this. I've spent some more time together with her, and she is still very flirty but seems (if anything) she wants it to be a girl thing. IF she wants anything at all. At this point, I've decided we will see what happens in the future but I'm putting my swinging and/or poly eggs elsewhere for now. Eventually we'd love to have a poly relationship....but for now we're still looking for our first swinging experience.
But thinking about her has given US some incredible times in bed!