We've never had "rules" per se. Could be because we'd been together for over 20 years before we started playing. But we certainly have
preferences, which have evolved as we've gained more experience.
As far as playing with others that have them.....hmmmm. Kinda funny as we've never discussed rules with others before playing. There's only one couple that we've played with that we knew had any (besides the usual safe sex one). And I found out after the fact. It was on the second trip to their house that Tammy mentioned that Sue told her that they didn't do oral with others. They saved that for themselves. I started to laugh as I had planned on tasting her that night. It had dawned on me shortly after the first time the previous month, that I hadn't enjoyed tasting her nor her me. I just thought that things had progressed a little differently than normal and she just cowgirled up quickly because she was just horny
As I said, I hadn't really noticed til I had a chance to think about it.
Would we have played with that couple
knowing that they didn't do oral? Probably.....but it may have taken some of the enjoyment out of it knowing it in advance.
Brett