We, too, had a fantastic time before, during and after our first swing (earlier this month). Not a hint of jealousy.
Laugh if you want, but we currently have 19 rules that we easily mutually agreed to. There are a few primary rules involving general behavior (like we play together or not at all, and things proceed at the pace of the slowest person). The rest involve various boundaries (like keeping our play confined to certain areas of the house -- the living room and guest room only, for instance). I won't copy them all here, unless people really want to see them.