>>939467888
Sounds like a hot scenario there lol..
But you want to be part of it, I get it. 4chan larping aside, then your next move is to talk to her about you two being open for others to join but only as a couple. Apps are better for that vs a club. match, chat, meetup and have fun.
You two have to talk about what you want and are comfortable with. Her getting passed around a club isn't it for ya so tell her. Then she can either respect that or not. Up to you how you navigate either response.
Communication is what allows any of this to happen so get to yapping with her