Gael's Favorite

Sin:
Obsessive, possessive, absolutely in love? Who, me? I don’t think so. Gael is my best friend, of course I love him. He shares all his favorite things with me. (And I do mean all)

Gael:
Tasty, unique, mine. Sin is all that to me and more. I wish I could explain it to him, but I can’t. No, literally, I can’t. But I would if I could.
Phin:
WTAF? I always thought fated mates came in pairs, and that they were species-specific. So why does it feel like I have two? And what is actually going on between Gael and Sin? I’m so confused.