I have always thought it entirely possible to love more than one person romantically and equally.

Now I have practical confirmation.

Between Master, joie, and me... it seems like just such a perfect fit...
we both love Master, and naturally focus on Him, but love and care for each other truly as sisters...

i could never be jealous of joie or her time with Master, and i can't imagine she would ever of me- and this is easily felt because we share the same goal of pleasing Master (i don't mean sexual), so if Master is happy spending time with joie, focusing on her... then i'm happy.. b/c He's happy. it's just a three-way love pyramid with Master at the top...

Of course, it helps that He is such a sweet, loving, affectionate, appreciative, and caring person... ... always makes us both feel loved...
So, the Master (or Mistress) is key...

I think if it were just a vanilla threesome... jealousy might be more of an issue- b/c everyone's still kind of playing those games to gain control of the relationship.

I can't speak for the polyamory between a Master/ Mistress with more than two slaves... but I suppose if it had the same concept of focusing on Master/ Mistress, it would work just as well.