Someone with whom you share a deep meaningfulconnection that defies normative relationship archetypes. A closeness that is not described effectively by any specific label.
We used to be married, but I'm gay, and we are more than friends, but not technically biological family, and we don't really know where we are going, just that we will stay connected, so I guess we are twinstars.
the unspoken sympatico shared by twins - most especially those moments where they appear to have an almost telephathic understanding of each other.
(playing charades)
twin 1: film, book - five words...
twin 2: (cuts in) the unbearable lightness of being.
other players: foul! twinstinct!
(as overheard on a recent rail journey)