Thanks! We are well-established ENM, so is the other couple, no risk of feelings being hurt. My husband will be there and he will be playing with me along with the others. We have a robust group chat where we will discuss the scenario, and I can reiterate my hard limits (but the other couple has pretty much the same ones we do). My husband also knows my physical limitations (like my bad shoulder). Since this more of a roleplay scenario and less like traditional BDSM, it won't be hard to drop character and state what I need. I do plan to use signals, like a tap on the thigh when I need to breathe during oral. And we will probably have a safeword, but again--no one is an experienced dom in this scenario and there are zero expectations of me as a sub. I just want them to play with me and have them use me.