Like a lot of couples when we first started we had our rules that we set up to make sure we were both comfortable in any given situation.
Over time we changed our rules to accommodate our experiences and our trust in each other.
Now it’s pretty much no non-standard bodily fluids during sex and the rest is negotiable. ☺
How have your rules evolved?
I agree. Open and honest communication can mitigate pretty much everything. Don’t allow external people to manipulate your relationship, we always talk before and after a new encounter.