If it was legal and willingly entered into by all parties, sure, why not? If my (our) opinions on your domestic arrangements was necessary for them to attain equal status with already established marital conventions, I don't see any problems. I also don't see where the question of determining right and wrong fits in - could you clarify?
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'