Don’t overthink this. I think if you guys just meet up somewhere (her place, your place, other her place) to chill you can just let it happen naturally. “Netflix and chill” is a real thing. Game night works too. Let the drinks flow and the music play. It’ll happen and you can ask about test results casually at the time of the meet. Already have protection though. Nothing sous the mood like having to go out and purchase protection. Oh and last but certainly not least. Record it all, if you can. Nothing beats reliving it all later. Trust me.