I'm probably being needlessly anxious about this, but any advice or experiences is much appreciated.

I've (37/m) been in a relationship with Judy (31/nb) for about a month, still early but things have been amazing from the start. They have two other partners (both m, late-twenties/early-thirties) that they've known considerably longer than me, neither are engaged, married or nesting with them. I haven't met either of them, unknown if they've met eachother.

Judy had suggested that they want to get all 4 of us together and do something like bowling or laser tag. Cool, sounds like fun. But as somebody who is still figuring out ENM meeting two metas at the same time feeling daunting.

It's hard to find exact words for why such a meeting makes me this nervous (I've gotten along with all the metas I've met so far), I don't get jealous or insecure, maybe it's because I'm the new guy? Would asking if I wanted to bring my partner be appropriate? Should I expect some kind of power dynamic or hierarchy, even if temporary, to occur during the meeting?

If I'm over thinking or have the wrong perspective I can appreciate being told that.