half the trans population is in some form of poly relationship and the perspective i have looking at my friends' relationship pains gives me the following rules for relationships of more than two:
1. you need to be on equal footing. everybody needs to like each other, and preferably know each other well beforehand. relationships should be triangles, not V-shaped.
2. communicate like a motherfucker! more relationships = more chance for things to get fucked up = more silly fights and hurt feelings
3. everybody needs to want a poly relationship - otherwise it's just sanctioned cheating within a mono relationship
4. use common sense squawk quack the behavior that divides cuddle puddle from cuck shed is pretty obvious but i see it fucked up all the time