My best friend and I have been having ** since high school

We both turned thirty this year. To be clear, we're both women. Neither of us has ever identified as gay or even bi. But, one night during our senior year, we were feeling bi-curious enough that we decided to experiment. And it was an enjoyable enough experience that we still occasionally meet up to have ** whenever neither of us is seeing anyone.

I've never been interested in having ** with any woman but her. And I'm pretty sure she feels the same. Maybe this makes us weird as **, I don't know. All I know is that it's helped us maintain a bond that's still as strong as it was when we were eighteen.